Windows error 0xFFFFFFFF, -1

Detailed Error Information

HRESULT analysis[1]

FlagsSeverityFailure
Reserved (R)true
OriginCustomer

This code was defined by a third party software company, and may mean different things for different software. Contact the software author for more information about this error.

NTSTATUStrue
Reserved (X)true
FacilityCode4095 (0xfff)
Error Code65535 (0xffff)

Questions

52votes
9answers

The real difference between "int" and "unsigned int"

int: The 32-bit int data type can hold integer values in the range of −2,147,483,648 to 2,147,483,647. You may also refer to this data type as signed int or signed. unsigned int : The 32-bit unsigned int data type can hold integer values in the range of 0 to 4,294,967,295. [...] read more
c
24votes
7answers

Make AppBar transparent and show background image which is set to whole screen

I have added AppBar in my flutter application. My screen already have a background image, where i don't want to set appBar color or don't want set separate background image to appBar. I want show same screen background image to appBar also. I already tried by setting appBar color as [...] read more
dart
flutter
flutter-appbar
20votes
1answer

Setting up a Bluetooth PAN

I am trying to create a Bluetooth PAN between two devices where I can access REST based web services over the Bluetooth connection. I have had some success with various proof of concepts (both Bluetooth legacy and Bluetooth Smart) but I am having problems trying to create a Group network [...] read more
linux
networking
wireless-networking
bluetooth
pan
12votes
2answers

How to set Android DataBinding in nested layouts

I was just reading about data binding feature in android. I was trying to bind a view from a nested layout. My activity is android's default template of DrawerMenuActivity and it has content_my_activity layout nested inside activity_my_activity layout. I have 3 auto generated binding classes. MyActivityBinding, AppBarMyActivityBinding and ContentMyActivityBinding. I [...] read more
android
android-databinding
9votes
1answer

Cisco ASA Site-to-Site VPN Dropping

I have three sites, Toronto (1.1.1.1), Mississauga (2.2.2.2) and San Francisco (3.3.3.3). All three sites have ASA 5520. All the sites are connected together with two site-to-site VPN links between each other location. My issue is that the tunnel between Toronto and San Francisco is very unstable, dropping every 40 [...] read more
cisco
cisco-asa
cisco-vpn
9votes
2answers

GCC Bitwise Attribute

What does GCC's __attribute__(bitwise) mean? The attribute isn't mentioned in the info pages of GCC-4.6. I stubled upon it in the file open-iscsi-2.0.871/include/iscsi_proto.h in source the project Open-ISCSI where it is used as ... /* * If running svn modules we may need to define these. * This should not [...] read more
c
gcc
attributes
9votes
5answers

How to dump memory to a file in gdb (osx)? Need to rescue my work

I need to know how I can dump memory in Safari.app, to a file. I've entered gdb attach 6741 (my safari PID). Now what? I tried searching for help on gdb on google, but I couldn't find anything that told me what to do, even when searching for "how to [...] read more
macos
gdb
8votes
2answers

Strongswan (IKEv2) connection established, but no traffic routing

I've seen this sort of question posted a few times before, but so far, none of them have solved my issue. I'm trying to set up an IKEv2 VPN on my Ubuntu Server to use with my Windows Phone using Strongswan. The connection seems to be set up correctly, but [...] read more
ubuntu
ipsec
strongswan
vpn
8votes
3answers

Corrupted NTFS Drive showing multiple unallocated partitions

My external hdd with a single NTFS partition was accidentaly plugged out (kids!)... and is now corrupted. Iv tried running ntfsfix - with no luck - output below.. When I look at the disk under disk management in Windows 7 it shows up as having 5 partitions 2 of which [...] read more
external-hard-drive
ntfs
filesystem-corruption
7votes
3answers

SQL Server 2012 with account NT Service\MSSQLSERVER access is denied in domain

A few months ago we installed SQL Server 2012 in Windows 2008 R2 under the virtual account "NT Service\MSSQLSERVER", all good. A few days ago, one of the admins of the IT dept installed Full Text Search component to the SQL Server 2012 (the problem is he could not recall [...] read more
sql-server
sql-server-2008
domain
permissions
7votes
3answers

Disable IPv6 Loopback on Windows 7 64 Bit

I have a Windows 7 64 Bit machine, and I cannot find a way to disable the IPv6 Loopback. I looked at the article at How to disable IP version 6 or its specific components in Windows and shows how to set HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\DisabledComponents to various values – but none of [...] read more
windows-7
networking
6votes
1answer

FreeBSD IP aliases in different subnets and default outgoing IP address

I have a FreeBSD VPS that until recently had assigned 3 public ip addresses in a /29 subnet. When making outgoing connections, the IP address used was always the non aliased one ".20", however now I have added another block of 3 ip addresses in a different /29 subnet and [...] read more
networking
freebsd
ip-aliasing
6votes
1answer

ASA site-to-site IPSec vpn to linux ipsec-tools endpoints stops working after a random period of time

We swapped to ASA's over the weekend, and we replaced our VPN infrastructure which was previously based on openvpn and are now using IPSec between our ASA 5520's and our other sites that have linux (CentOS) routers. The VPNs connect just fine, but after a period of time the connections [...] read more
linux
cisco
cisco-asa
ipsec
racoon
5votes
1answer

My two-way trust with selective auth seems to behave opposite to a one-way trust

I'm not sure why I'm the only one running into this, I think it's a larger problem with Server 2012 and RDS protocols... With 2008 machines, you can use utilize a one way trust to authenticate across domains with the TSGateway service, but with 2012 it breaks when running across [...] read more
authentication
windows-server-2012-r2
active-directory
5votes
1answer

Enable TLS 1.2 in Windows Server 2012 running Exchange 2013 via IIS 8.0

I got some issues getting the TLS 1.2 protocol running on one of our Windows Server 2012 machines. I checked this using ssllabs.com by Qualys and also tested with a powershell script and the linux tool "cipherscan". The server hosts one Exchange 2013 SP1 (CU4) Server, with IIS 8.0. The [...] read more
windows-server-2012
tls
exchange-2013
5votes
2answers

OpenVPN connection works but no gateway is assigned

i try to setup openvpn on a vps and I'm able to establish a connection to the server, but the gateway isn't assigned to the client. Here are my config files: client config: client dev tun proto udp remote foo.bar 1194 resolv-retry infinite nobind persist-key persist-tun ca ca.crt cert client1.crt [...] read more
vpn
configuration
openvpn
gateway
open
5votes
3answers

Walking the NTFS Change Journal on Windows 10

I'm trying to read the NTFS Change Journal but I've noticed that all the example code I can find fails on Windows 10, even though it works on Windows 7. For example, Microsofts own example Walking a Buffer of Change Journal Records works on Windows 7 but when I run [...] read more
winapi
visual-c++
ntfs
deviceiocontrol
4votes
3answers

How to limit ZFS writes on NVME SSD in RAID1 to avoid rapid disk wear?

Currently I'm running Proxmox 5.3-7 on ZFS with few idling debian virtual machines. I'm using two SSDPE2MX450G7 NVME drives in RAID 1. After 245 days of running this setup the S.M.A.R.T values are terrible. SMART/Health Information (NVMe Log 0x02, NSID 0xffffffff) Critical Warning: 0x00 Temperature: 27 Celsius Available Spare: 98% [...] read more
zfs
ssd
proxmox
nvme
4votes
0answers

Block incoming traffic in bonding mode when primary interface is down

My server running on latest kernel (4.4.6) has configured a bond device (bond0) with two enslaved interfaces eth0, wlan0 with primary interface eth0. cat /proc/net/bonding/bond0 Ethernet Channel Bonding Driver: v3.7.1 (April 27, 2011) Bonding Mode: fault-tolerance (active-backup) Primary Slave: eth0 (primary_reselect always) Currently Active Slave: wlan0 MII Status: up MII [...] read more
linux
iptables
firewall
bonding
4votes
0answers

Issue installing IE11

I've been using WSUS to roll out IE11, there's a few stranglers that IE11 will not install and I've started looking into. Here's what I've done. 1. Confirmed all prerequisite updates have been done. 2. I'm using the x64 bit package of ie11 and only using x64 servers and workstations. [...] read more
windows-server-2008-r2
windows-7
wsus
internet-explorer-11
4votes
1answer

System Account Logon Failures every 30 seconds

We have two Windows 2008 R2 SP1 servers running in a SQL failover cluster. On one of them we are getting the following events in the security log every 30 seconds. The parts that are blank are actually blank. Has anyone seen similar issues, or assist in tracking down the [...] read more
windows-server-2008
security
windows-event-log
failovercluster
4votes
2answers

How can I get FreeNAS to respond to libvirt shutdown requests

I have a KVM VM of FreeNAS 0.7.1 Shere (revision 5127) running on Ubuntu Server 10.04 and I'm unable to convince the VM to shutdown from the host virsh shutdown freenas I would expect this to send some ACPI? trigger to the VM and FreeNAS then do what it's told. [...] read more
ubuntu
kvm-virtualization
electrical-power
freenas
4votes
3answers

Android SpeechRecognizer Network Error

I'm trying to create a continous speech recognition in Android 4.4, simple displaying the spoken words in a TextView, like a dictate. I followed multiple tutorials, like https://github.com/fcrisciani/android-speech-recognition/blob/master/VoiceRecognition/src/com/speech/fcrisciani/voicerecognition/ContinuousDictationFragment.java , or Is there a way to use the SpeechRecognizer API directly for speech input? and implemented the following version: import java.util.ArrayList; [...] read more
android
speech-to-text
4votes
2answers

Can "LL" be removed from a hard-coded integer constant, and be replaced by "static_cast<uint64_t>(...)"?

I am modifying legacy code that utilizes a "long long" (LL) data type definition for a hard-coded constant, as follows: 0xFFFFFFFFFFFFFFFFLL I trust that the LL appended to the constant guarantees that this constant will be interpreted as a long long. However, I do not want to depend on long [...] read more
c++
4votes
1answer

firewall-cmd - add-forward-port don't work

I have a KVM server (host) with multiple virtual machines (guests). My goal is my host forward port 222 to port 22 of a guest running an ssh service. This works... iptables -I OUTPUT -d 0.0.0.0/0 -j ACCEPT iptables -I FORWARD -d 0.0.0.0/0 -j ACCEPT iptables -I INPUT -d 0.0.0.0/0 [...] read more
firewall
port-forwarding
iptables
forwarding
firewalld
4votes
1answer

What does the "-->" notation mean in the output of ifconfig?

I have a VPN connection set up on my OS X machine, and when I run ifconfig in the terminal I get the following response: utun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500 inet 10.8.0.6 --> 10.8.0.5 netmask 0xffffffff Can someone help me understand what the --> symbol means? read more
networking
vpn
ifconfig
4votes
0answers

Direct3D crashes dxdiag in 32-bit but works fine in 64-bit mode

DxDiag crashes when I open it unless I bypass Direct3D. It works fine in 64-bit mode. I have a NVIDIA GeForce GT 525M, and I've tried updating (also uninstalling, reinstalling) my drivers. I've also tried doing the same with DirectX. How can I enable Direct3D for 32-bit? I've tried enabling [...] read more
windows-7
directx
direct3d
4votes
2answers

Is my mac hacked? Found weird things

I apologize for posting in length, but I thought being complete would be of more value: 20120822, my browser was not resolving a domain so I went into my terminal to check and lo-and-behold! I find these crazy commands remnant: mac-mini$ su Password: sh-3.2# sudo /Applications/TextEdit.app/Contents/MacOS/TextEdit /etc/hosts Mar 22 23:07:08 [...] read more
mac-mini
logmein
4votes
1answer

disabling ipv6 on windows 7 64bit

not sure what i am missing here.. every website suggests creating this reg key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip6\Parameters\DisabledComponents as DWORD and setting its value to 0xFFFFFFFF i've done this, but when i reboot, my NIC adapter still shows IPV6 enabled. since i have 64bit version, i also tried setting this value as QWORD. [...] read more
windows-7
ipv6
3votes
2answers

How to limit speed for every device per MAC address in the gateway via Linux command "tc"?

I have a gateway whose OS is Linux.Assume my downlink bandwidth is 100 Mbps. I want to limit the max download speed to 1Mbps for every device which uses this gateway.In other words, if there are 100 devices, every device can get 1 Mbps bandwidth in theory.I tried doing traffic [...] read more
tc
3votes
0answers

FreeBSD major update broke vpnc connectivity, incoming ESP traffic doesn't appear unencrypted on interfaces

I updated a FreeBSD box from 10.4 to 11.2-RELEASE-p4 recently and it seems to have broken the vpnc VPN connectivity. Here's the vpnc.conf:IPSec gateway 10.1.0.1 IPSec ID vpnuser IPSec secret su0hoh8liNgeiT8 Xauth username vpnuser Xauth password miuthei3Niew2ee Nat Traversal Mode none Noninteractive Following the interface configuration; em0 is the hardware [...] read more
freebsd
ipsec
cisco-vpn
vpn-client
3votes
0answers

High Performance AWS EC2 / RDS + Nginx + PHP-FPM setup

GENERAL DESCRIPTION OF THE ISSUE We're currently running an application on a PaaS type solution for PHP. Their solution is based on AWS cloud and due to the fact that their plans don't fit our scaling needs, we've decided to migrate to AWS directly the application is performing "well" ~100ms [...] read more
nginx
amazon-ec2
amazon-web-services
php-fpm
high-load
3votes
2answers

How to debug ip xfrm rules

I created ip xfrm rules on 2 machine and trying to pass traffic through the ipsec tunnel. The packet comes into the other end, encrypted, and disappears. I traced them through iptables, and here is the trace. 2015-11-27T14:50:21.442638+04:30 cfae kernel: [70234.667488] TRACE: raw:PREROUTING:policy:2 IN=eth0 OUT= MAC=00:0c:29:b7:97:49:00:0c:29:42:5b:e1:08:00 SRC=172.24.1.178 DST=10.60.60.31 LEN=128 TOS=0x00 [...] read more
ipsec
3votes
1answer

Same hardware/software, significant difference in performance

Introduction I have two sets of machines, set A and set B, with apparently the same hardware/software configuration, but with a significant difference in performance. Machines in set B are up to x4 faster than machines in set A. However, if I reboot a machine in set A, inexplicably it [...] read more
performance
hardware
3votes
1answer

Iptables u32 matching nat

I'm currently setting up IPtables to redirect certain UDP payloads to my application. Here is an example of what I have working so far: iptables -t nat -I PREROUTING -p udp -d {IPDST} --dport 27055 -m u32 --u32 '0>>22&0x3C@8=0xFFFFFFFF && 0>>22&0x3C@12=0x54536F75 && 0>>22&0x3C@16=0x72636520 && 0>>22&0x3C@20=0x456E6769 && 0>>22&0x3C@24=0x6E652051 && 0>>22&0x3C@28=0x75657279' -j [...] read more
iptables
linux-networking
3votes
2answers

CentOS reporting lower total memory compared others in AWS

I have a t2.medium instance running in AWS on the CentOS 7 AMI and I noticed in top and free it's basically reporting 3.45GiB of total memory. If I launch an instance with the AWS linux (I think I tried the RedHat one too) it reports about 4GiB of memory. [...] read more
amazon-web-services
memory
centos7
3votes
1answer

Windows 2008 R2 services not working

EDIT I spawned the Windows events logging service won't start issue to a separate question here I have a strange problem: 1. SQLAGENT won't start 2. Windows events logging service won't start Today I tried to copy a db to test some changes, and discovered that SQL server agent can't [...] read more
windows-server-2008-r2
sql-server-2008
service
windows-event-log
3votes
3answers

Setting up gateway on different subnet than IP address

My provider has a (stupid) setup where the IP address for the gateway is on a totally different IP range than the assigned IP address. They insist on doing this for whatever reason. I'm trying to get Windows Server 2012 R2 configured using a static route but have had no [...] read more
networking
routing
windows-server-2012
gateway
3votes
1answer

Packets not entering FORWARD chain

first of all, this is not an every-day routing issue. The setup is fairly complex, so let me state it before. I got a router with, lets keep it simple, 3 interfaces. eth0, eth1, eth2. eth2 is used for pppoe. eth0 & eth1 have the clients. Okay so far so [...] read more
networking
iptables
routing
policy-routing
3votes
2answers

HP P410 ADU (hpacucli) generates empty report

I'm trying to monitor hard drive's smart status. I've tried smartctl tools and HP's own hpacucli to generate ADU report. However, neither of them are useful. smartctl does not show values like Power On Hours or Hard drive temperature. ADU report shows them empty. What's the right way to monitor [...] read more
raid
monitoring
hp
hardware-raid
hp-smart-array
3votes
1answer

Linux port based routing : reponse packets discarded

I would like to use port-based routing on my Linux local gateway. Here is my network diagram : 192.168.42.148/24 192.168.42.1/24 192.168.44.2 192.168.44.1 +--------------------+ +----------------------------+ +----------+ | Workstation (eth0)-|----------------|-(em0) Local_GW (tun0)-|------------| VPN_GW | +--------------------+ | (rl0) | +----------+ +-------------|--------------+ 10.133.8.79/21 | | 10.133.15.254/21 | +--------------------+ | Provider_GW | +--------------------+ Provider_GW only [...] read more
linux
iptables
routing
iproute2
3votes
2answers

iptables NAT with multiple interfaces

I have an ubuntu 10 machine I'm trying to set up with NAT. eth0 is the WAN interface, that uses DHCP. eth1, eth2, eth3 are LAN interfaces. They are connected to 192.168.0.50, .51, .52 respectively. NAT through eth1 works great. On eth2/3, I get nothing -- "no route to host" [...] read more
iptables
nat
3votes
0answers

How to increase items Quantity in E-Commerce Cart using Provider in Flutter

I want to increase the quantity of product when I click on the add button in the productview or add to cart multiple time but I do not increase its quantity remain the same, someone helps me to solve this problem. How can I give an index to the items? [...] read more
flutter
dart
flutter-provider
3votes
1answer

QEMU doesn't reboot my OS after resetting via the 8042 PS/2 controller

@MichaelPetch has rewritten the entire question to reduce it to a specific problem that should be easily reproduced. The original question focussed on a problem encountered doing OS development in 64-bit long mode. The code was attempting to use 8042 PS/2 controller to reboot a machine but it failed to [...] read more
assembly
x86
qemu
osdev
multiboot
3votes
1answer

Black screen while installing Debian

I tried installing Debian with a netinstall CD-ROM on my custom-built PC. Everything is going fine until I choose any of the install options because then the screen turns black and I get no graphical feedback at all. The screen itself seems to get information though because it doesn't go [...] read more
installation
debian
3votes
2answers

Error installing IE11 - prerequisite update KB2834140

I'm trying to upgrade Internet Explorer my Windows 7 (x64) development VM from IE8 to IE11. Both the online and offline installers fail with a bland error message: enter image description here [https://i.stack.imgur.com/0dueo.png] The troubleshooter tells me nothing, but the IE11_main.log reveals: 00:04.524: INFO: Download for KB2834140 initiated. Downloading http://go.microsoft.com/fwlink/?LinkID=303935 [...] read more
windows-7
installation
internet-explorer
3votes
1answer

What can trigger a SIGPWR signal that interrupts a 'sendmsg' system call?

On a RHEL 6 host, I have a Cassandra server listening for TCP connections on localhost. In parallel, I have a client application that sends it requests. The client (C# Mono) uses sendmsg to send the serialized bytes. I consistently see the sendmsg return without having sent all requested bytes. [...] read more
linux
redhat-enterprise-linux
tcp
strace
system-calls
3votes
2answers

Sysprepped image will not complete setup

I'm having a problem installing/setting up an image. Background:I've created a Windows 7 Enterprise image (i.e. installed OS, installed applications, configured settings, etc.). Then I sysprepped it and captured/applied it with imagex (onto a computer with identical hardware as the original). When I boot up the new machine, windows starts [...] read more
windows-registry
setup
deployment
sysprep
3votes
4answers

Mac OS X: finder window keeps opening by itself and stealing focus

I have a Macbook with Mac OS X 10.4.11 here, with an annoying problem. After starting the computer and logging in, the finder keeps stealing focus. You can go back to your working app, but a minute later, it steals focus again. Even as I'm typing this message, I had [...] read more
mac
finder
focus
3votes
2answers

How to use openvpn for browsing

I'm just starting out with VPN and OpenVPN. What I understand is that I when I have a vpn connection, it's like I'm on the same network as the server. Then I should be able to connect to the server via the local address (10.8.x.x). Next to that I should [...] read more
debian
vpn
openvpn
tunnel
bridged
3votes
2answers

Something very strange with network

I have Windows 7 and I have very strange thing with my network. Some time I was connected through wireless router and my IP was 192.168.2.103, router's IP was 192.168.2.1 and some other IP was 192.168.2.100. The last I get from page "active DHCP clients" of web interface of the [...] read more
windows-7
networking
2votes
3answers

Linus/ext4/nvme crashes during high io

During mvn compilation, I have random crashes. The problem seems related to high IO and in kern.log, I can see things like: kernel: [158430.895045] nvme nvme1: controller is down; will reset: CSTS=0xffffffff, PCI_STATUS=0x10 kernel: [158430.951331] blk_update_request: I/O error, dev nvme0n1, sector 819134096 op 0x0:(READ) flags 0x80700 phys_seg 1 prio class [...] read more
linux
ssd
ext4
io
nvme
2votes
1answer

What's the largest possible Logical Cluster Number (LCN) on an NTFS volume?

By spec, NTFS partitions can have up to 263 - 1 logical clusters. But when I tried to calculate what size drive I'd need to test values greater than 32bits, I ran into a problem. Doing the math, a 4k cluster size with 0xFFFFFFFF + 1 clusters results in 17,592,186,044,416 [...] read more
ntfs
2votes
1answer

Enable IPv6 in MariaDB in FreeBSD jail

I'm trying to set up a MariaDB 10.2 Server on a FreeBSD 11.2 Jail. The Server is running and accepts remote connections via IPv4 just fine. According to sockstat, it should also be listening on IPv6: db# sockstat | grep 3306 mysql mysqld 17516 177 tcp46 *:3306 *:* This is [...] read more
mysql
freebsd
ipv6
mariadb
2votes
2answers

Transparent HAproxy on ubuntu (amazon EC2)

I am trying to setup a transparent HAproxy load balancer using ubuntu 18.04 on amazon EC2. I got the HAproxy to work on a non-transparent mode, so now I am trying to add the changes required for the transparent mode, but I am getting 503 Service Unavailable No server is [...] read more
haproxy
transparent-proxy
2votes
0answers

How to get TOR hidden service to work with iptables

I'm running an Arch Linux server which acts as a TOR relay and I would like it to act as a hidden service as well (I want to provide .onion access to my services, I know running a relay next to a HS is not suitable for an anonymous service). [...] read more
iptables
service
arch-linux
tor
hidden
2votes
0answers

How to fix Apache2 w/ suPHP to scan the correct .ini directory?

Apache2 was reading the correct area for php.ini in /etc/php5/apache2 until suPHP was added to the system. Configuring suPHP_ConfigPath in /etc/apache2/mods-available/suphp.conf gets the correct php.ini loaded, but does not correct the directories to be scanned. How, and where, do I fix this so that Apache loads/scans/uses PHP from the original [...] read more
apache2
php
2votes
2answers

OpenVPN routing between static hosts

I have an OpenVPN server with successful static-key tunnels to two separate hosts - my laptop, and another server elsewhere on the internet. I have connectivity over both OpenVPN tunnels. How do I make it so the server with two tunnels routes traffic across its tunnels? Switching to server mode [...] read more
debian
vpn
routing
openvpn
2votes
4answers

OpenVPN client connects but can't access internet

I setup an Openvpn server on a centos box and I can get the client to connect (osx) but can't access the internet or even the local network. I thought maybe DNS but couldn't access any sites via IP. Any help would be appreciated. I will list my config files [...] read more
centos
iptables
openvpn
2votes
0answers

DHCP offer is unicast but DHCPACK is broadcast

My DHCP server broadcast DHCPACK 0xffffffff . it is not working on layer 3 dhcp relay agent . as it can not forward this broadcast message to my client. can any one help me from exactly the broadcast bit set ? should I send any parameter to dhcp server so [...] read more
dhcp
dhcp-server
isc-dhcp
2votes
1answer

nslookup fails inside freebsd jail

I posted on the freebsd forums. I've been trying all night and I've made some progress but still I can't connect to the internet from my freebsd jail. Please just give me a hint here. I get the following inside the jail if I do nslookup www.google.com : ;; connection [...] read more
networking
freebsd
bsd
2votes
3answers

How to configure an authoritative time server in Windows Server

I have a performance lab running behind a firewall, so none of the machines in the lab has internet access. All machines in the lab are part of a domain with the domain controller also present inside the lab. The problem is that some server's time are drifting heavily. Some [...] read more
windows-server-2003
windows-server-2008-r2
ntp
w32time
2votes
1answer

How should I initialise my stm32 ( f215 )

I am trying to make an extremely minimal stm32f215 firmware to teach myself its boot-up intricacies. As it is now I have this dump which, to my knowledge, should write the stack address to r0 and loop forever: firmware-d: file format elf32-littlearm Disassembly of section .isr_vector: 08000000 <vector>: 8000000: 20002000 [...] read more
arm
embedded
cortex-m3
2votes
1answer

Raspberry BLE Encryption / Pairing

I'm trying to use my Raspberry Pi 3B to communicate with a BLE enabled device which dosen't require a PIN. I first tried with Ionic on iOS using cordova BLE central ( https://github.com/don/cordova-plugin-ble-central), which worked as expected, here is the exchanged packets : iOS (PacketLogger) May 21 07:59:36.825 Note 0x0000 [...] read more
node.js
raspberry-pi
bluetooth-lowenergy
2votes
1answer

Signed integer promote to unsigned long

In x86-64 linux environment, why C promote signed integer -1 to unsigned long 0xffffffffffffffff, but not 0xffffffff? #include <stdio.h> int main() { unsigned long ul = (int)-1; printf("%lx\n", ul); } read more
c
language-lawyer
2votes
1answer

How do I find the width of a uint_fast32_t

I'd like to be able to portably fprintf() a uint_fast32_t as defined in stdint.h with all leading zeroes. For instance if my platform defined uint_fast32_t as a 64-bit unsigned integer, I would want to fprintf() with a format specifier like %016lX, but if it's a 32-bit unsigned integer, I would [...] read more
c
printf
stdint
2votes
2answers

how can I finish activity from view

I have got an activity which has custom view. I have to add activity result: public class ActView extends Activity implements OnClickListener { <...code...> @Override protected void onCreate(Bundle savedInstanceState) { <...code...> layout = (LinearLayout) findViewById(R.id.chart_container); timelineview = new VDrawTimeLine(this,contentFull); timelineview.setLayoutParams(new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); timelineview.setBackgroundColor(0xffffffff); timelineview.setVisibility(View.VISIBLE); layout.addView(timelineview); <...code...> } } View class: [...] read more
java
android
view
2votes
1answer

Prove a function is surjective using Z3

I'm trying to understand how to prove efficiently using Z3 that a somewhat simple function f : u32 -> u32 is bijective: def f(n): for i in range(10): n *= 3 n &= 0xFFFFFFFF # Let's treat this like a 4 byte unsigned number n ^= 0xDEADBEEF return n I [...] read more
z3
z3py
2votes
1answer

PYTHON - Ctypes : OSError: exception: access violation writing 0xFFFFFFFFFA1C001B

Here is a code for writing values to memory using memory mapping. When I try to run the code, I get the error "File "MMF.py", line 26, in memcpy(pBuf, szMsg, len(szMsg)) OSError: exception: access violation writing 0xFFFFFFFFFA1C001B" import msvcrt, mmap import ctypes from ctypes import * FILE_MAP_ALL_ACCESS = 0x04 INVALID_HANDLE_VALUE [...] read more
python
ctypes
dllimport
memory-mapped-files
2votes
1answer

Windows: SSL/TLS connection reset after ClientHello (ECONNRESET / write:errno=10054)

I'm using Windows Server 2012 as a workstation. The problem is that HTTPS connection initiated by node.js randomly fails. Probably this is system-wide issue and not only node is affected, but it appears mostly with node. Because any HTTPS request can randomly fail, npm install is a lottery and for [...] read more
windows
networking
ssl
https
openssl
2votes
2answers

Windows 10 drops IKEv2 VPN connection to Cisco router in exactly 60 seconds after last data exchange

Update 3: 22 January 2017 I've narrowed down the update that causes this problem: KB3201845 OS Build 14393.479 from December 9 2016. I went through all these updates step by step. Looking at the changes files manifest, these files have been changed: * agilevpn.sys * vpnike.dll Other topics I've created: [...] read more
networking
windows-10
vpn
2votes
0answers

on xeon, does addq require 2 clock cycles?

How many cycles are required to add long ints on a xeon? from timing trials, it appears that 2 clock ticks are needed. /proc/info says model name : Intel(R) Xeon(R) CPU X5660 @ 2.80GHz sample c code (loop.02.c) unsigned long i, j=0; for(i=0; i<(0xFFFFFFFF);i++) j+=3; assembler code 21:loop.02.c **** for(i=0; [...] read more
xeon
clockspeed
2votes
0answers

Failed MacbookAir boot Linux (Tails) - Kernel panic on boot

I’ve an error with my MacBook Air (Retina, 13-inch, 2018), version 10.15.1 Boot ROM version : 1037.40.124.0.0 (iBridge: 17.16.11081.0.0,0) I try to boot on Tails by a USB key and Apple adaptator Thunderbotl/USB See the log after select Tails boot : (AE_ALREADY_EXISTS) (20190703/psparse-529 [ 0.772994] ACPI Error: Aborting method \_PR.CPU0._PDC [...] read more
linux
boot
mac
kernel-panic
tails
2votes
1answer

Network interface for VPN connection explanation

I'd like to know exactly what is happening when I create a connection with my company's VPN. When I connect (using OpenVPN), I see the following network interface by using ifconfig: utun3: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1500 inet 10.8.0.18 --> 10.8.0.17 netmask 0xffffffff This looks different from other network interfaces in that [...] read more
vpn
ifconfig
2votes
1answer

How to slow down traffic with tc?

I'm on Ubuntu 14.04; I'd like to learn the basics of traffic shaping, I made a simple script that should slow down my HTTP(S) traffic to ports 80 and 443. # usage: sudo ./filename.sh #delete existing rules # wlan0 is my WiFi tc qdisc del root dev wlan0 iptables -t [...] read more
wireless-networking
iptables
network-traffic
traffic-shaping
2votes
1answer

How do I configure DNS when sharing a VPN connection in linux?

I'm using a Linux computer (raspberry pi) to share a VPN connection over ethernet. I want the raspberry pi to connect to the internet normally (not over the VPN). I'm very close to getting it working, but I don't know how to configure the DNS for the eth1 network. Connection [...] read more
linux
networking
vpn
dns
dnsmasq
2votes
0answers

How can I get a Mellanox ConnectX-2 to work on this ASUS desktop motherboard?

People seem to be happy with second-hand Mellanox ConnectX-2s on Linux so I grabbed a pair. Both cards result in an network interface showing up on one computer but neither show up in the other computer. Working computer: * EVGA 120-LF-E650 desktop board * Ubuntu 16.04 LTS * Linux 4.4.0 [...] read more
linux
networking
network-adapter
2votes
1answer

Enable SCHANNEL Protocols in Windows Registry (Win7 & 2012R2) DisabledByDefault or Enabled?

I have enabled TLS 1.0/1.1/1.2 protocols on my local Win7 machine and 2012R2 server as well as disabled SSL 2.0/3.0 using the registry DWord value DisabledByDefault = 0 based on the following Microsoft support article: https://support.microsoft.com/en-us/kb/245030(see SCHANNEL\Protocols subkey...) But i noticed another TechNet article which seems to contradict this KB [...] read more
encryption
tls
authentication
cryptography
openssl
2votes
1answer

Routing subnet to specific routing table with fwmark, direct to ISP and VPN

Introduction I'm trying to set up a VPN on my router so that I have two routing tables. I want it so that all the filtering is done with iptables, and iproute just acts on the specific fwmarks, ie generic rules. It is an improvement of Routing a particular subnet [...] read more
networking
router
routing
iptables
openvpn
2votes
1answer

OS X - GPU Panic

For half a year, I've been experiencing random freezes/reboots on my MacBook Pro Retina Mid 2012 model. My current OS is OS X Yosemite, but I started experiencing the issue in the Mavericks era. The laptop has endured some occasional, unintended slight physical abuse, but nothing very serious. Just mentioning [...] read more
macos
gpu
kernel-panic
2votes
1answer

Computer tends to BSOD crash (in any browser) when using Flash based apps?

About a month ago my computer started experiencing crashes, at first it was just every once in a while, then it escalated to around 5 times a day. Typically it crashes when I access flash-based games and videos, but it has occurred at random, e.g. no sensible correlation between what [...] read more
windows-7
crash
flash
bsod
1vote
1answer

Client object identifier in BIND 9 query logs

The BIND 9 Administrator Reference Manual e.g. for version 9.14.11 or 9.17.1 states in * 5.2. CONFIGURATION FILE GRAMMAR * The category Phrase * queries > The query log entry first reports a client object identifier in @0x<hexadecimal-number> format. This term has not been mentioned anywhere else in the ARM, [...] read more
bind
1vote
1answer

IIS Site breaks after disabling SSLv3

I am trying to disable SSLv3 on a 2008 R2 web server that runs IIS 7.5 but as soon as I disable SSLv3 and reboot, the website is no longer reachable. I ran a packet capture with SSLv3 still enabled and my client is establishing a TLS 1.2 connection so [...] read more
windows-server-2008-r2
ssl
iis-7.5
tls
poodle
1vote
0answers

TC Filter With BPF and NFTables Packet Marking

I made a TC BPF ingress program and I want it to process specific packets only marked by NFTables. Here's my NFTables table that marks the specific packets: table ip compressor_tc { chain prerouting { type nat hook prerouting priority -99; policy accept; ip daddr 10.50.0.3 tcp dport != ssh [...] read more
tc
filter
1vote
1answer

Routing between OpenSWAN / IPSEC tunnels

I am trying to connect multiple Amazon VPCs (across regions) together using OpenSWAN and Amazon VGW's. The router instance can ping to hosts in both VPCs, and traffic is attempting to cross the router, but is getting dropped. EDIT: I see the counter XfrmInNoPols incrementing when the pings are not [...] read more
amazon-web-services
vpn
linux-networking
ipsec
openswan
1vote
0answers

Hyper-V Core Server 2019 ignoring power plan thresholds

I am attempting to tweak Hyper-V Core Server 2019 (host) power thresholds, however my attempts have failed so far. Scenario The newly created Hyper-V 2019 Server (part of Workgroup, not yet a Domain) has been attached to an external UPS. Battery status is provided through a USB cable. The UPS [...] read more
hyper-v
ups
1vote
0answers

Windows Task Scheduler claims successful execution despite return code of -1 (0xffffffff, 4294967295)

Having a very strange case here, where a windows task scheduler job executes a C# console application at a specific time, that returns -1 in case of an error. The job is configured to rerun itself if an error occurs. The console app fails and returns the error code. The [...] read more
windows
scheduled-task
.net
console
1vote
0answers

Enabling TLS 1.1/1.2 on Windows Server 2008 SP2 still not possible

first for those of you, who might think, this question has been asked so many time before so it is a useless duplicate... 1. I cannot (yet) comment on other questions, so my only option on this is to ask new question. 2. I've searched and read the following articles [...] read more
windows-server-2008
ssl
1vote
3answers

2018-08 Cumulative Update for Windows Server 2016 (KB4343887) Failing

I've been trying to update the Patches which is failing continuously enter image description here [https://i.stack.imgur.com/PDkYQ.png] When I click the Failed to Install, I popped with the below description > 2018-08 Cumulative Update for Windows Server 2016 for x64-based Systems (KB4343887) A security issue has been identified in a Microsoft [...] read more
windows-server-2016
windows-update
credssp
1vote
1answer

Amazon RDS SQL Server Express 2012 - Fail to log-in

I recently created a new RDS of SQL Server Express 2012. I have set the security to be publicly available and to accept all ports and incoming connections. From some reason, I fail to connect it using my three clients: - HeidiSQL - SQL Server Management Studio - java client [...] read more
amazon-vpc
amazon-rds
1vote
1answer

shape dropbox on linux router with tc and iptables

Another machine on my LAN is uploading to Dropbox and saturating my internet connection's upload bandwidth. When that happens my pings to 8.8.8.8 take 3000-6000ms. When dropbox is not uploading my pings to 8.8.8.8 are 45ms. I'm trying to simply slow down and de-prioritize forwarded traffic to/from Dropbox on my [...] read more
traffic-shaping
qos
tc
htb
1vote
2answers

Ubuntu: updated mainline kernel, now drops to initramfs

I attempted to upgrade our system's mainline kernel and am now dropping into initramfs. < update>: The commands I used were: apt-get update apt-get upgrade apt-cache search linux-image //grabbed last entry apt-get install linux-image-4.4.0-67-generic < /update> I have researched the topic and found that I should be able to access [...] read more
ubuntu
boot
kernel
grub
initramfs
1vote
2answers

Kerberos Failure Audit Event Id 4769 on Domain Controller

I have an average of 17-18 failure audit events per hour recorded in the Security event log of a Windows 2012R2 domain controller, related to attempts of a Windows 2008R2 member server to obtain a Kerberos service ticket A Kerberos service ticket was requested. Account Information: Account Name: TORPDC01$@ACME.COM Account [...] read more
windows-server-2008-r2
windows-server-2012-r2
kerberos
1vote
0answers

iptables SNAT not honoring original port intermittently

I have a mark/mangle/SNAT setup that has been working great for years. However, when trying to use this same setup for DHCP requests, it intermittently fails: *mangle -A OUTPUT -p udp -m udp --dport 67 -j MARK --set-xmark 0x7/0xffffffff #... *nat -A POSTROUTING -m mark --mark 0x7 -j SNAT --to-source [...] read more
iptables
routing
1vote
2answers

"Service Unavailable" on fresh installation of OS and IIS 6 no matter what I try

I recently installed Windows Server 2003 on a virtual machine and then added the IIS role. (The reason for using an old OS is to make some old software work - Crystal Reports web server component) I have not yet added any pages/apps to the website (except one very simple [...] read more
windows-server-2003
iis-6
1vote
1answer

Can't connect to AWS instance after import with stock Centos7

I am trying to import a Centos7 based VM into Amazon AWS. The VM was created with the Centos7 minimal ISO installed into VirtualBox. Networking in the VM works fine locally before trying to do the import. I am using the EC2 command line tools to do the import: ec2-import-instance [...] read more
amazon-ec2
amazon-web-services
centos7
import
1vote
1answer

Out of 2 VMs and their 1 host, only 2 at a time are reachable from the LAN

I have a VMware vSphere hypervisor set up with two VMs. I need to be able to reach the host (for configuration, etc.) as well as both VM's from my client (which is also in the same subnet). I want to set up a PoC Hadoop cluster, and the client [...] read more
networking
vmware-esxi
1vote
3answers

Windows Server 2003: Backup Failed

I am having trouble backing up my server. I back up to an external hard drive, and up until now, I haven't had any problems with it. But today my backup failed. Here is the report from the backup log: Backup Status Operation: Backup Active backup destination: File Media name: [...] read more
windows-server-2003
backup
vss
1vote
0answers

Policy routing local user's traffic down a tunnel

I've got a Linux based Firewall/Router running iptables and SNAT for traffic passing through it to the Internet via a single uplink - This is working fine. There is also a small number of applications running on this server which also work fine. I've also got an OpenVPN client running [...] read more
iptables
routing
openvpn
linux-networking
1vote
1answer

How to debug intermitent network outage on Citrix XenServer

I have two Citrix XenServers in a pool. Both have a NIC for Management, a NIC for the SAN and a NIC for the VMs to connect to the network. The NIC for the VMs (eth3) has multiple networks configured for the VMs with different VLAN IDs. This has been [...] read more
xenserver
1vote
0answers

Freebsd, ipfw sched - config type = QFQ get frozen

I have some freebsd soft-router $uname -r 8.2-STABLE code for ipfw: pipe 50 config bw 70Mbit/s sched 50 config type QFQ queue 502 config sched 50 weight 1 mask dst-ip 0xffffffff queue 501 config sched 50 weight 9 mask dst-ip 0xffffffff add 01501 queue 502 ip from 10.32.0.0/14 to 10.32.0.0/14 [...] read more
freebsd
traffic-shaping
ipfw
1vote
2answers

OpenVPN Network Unreachable

I'm working to set-up a VPN access to a group of virtual machines at Linode., the topology looks something like this: db.example.com LAN: (eth0:0) 192.168.154.127/255.255.128.0 utility.example.com LAN: (eth0:0) 192.168.164.229/255.255.128.0 And, more servers on the LAN with addresses in the same range. The utility server is hosting the OpenVPN Here's my [...] read more
ubuntu
mac-osx
routing
openvpn
1vote
1answer

Using the right Perl array references with IPC::Run

I'm trying to get this Perl code to work correctly and I believe I just need to get my references right. I would appreciate any feedback on how to use references, but if this code can't be made to work without API changes I would also appreciate feedback on how [...] read more
perl
perl-ipc-run
1vote
0answers

Data too big for QR Code Generation with XZing in Android with Java

I am trying to generate a QR Code and set it to an ImageView out of a PGP Public Key in my Android Application with Java. The libary I use is XZing and I am on Android Studio. This worked well before with smaller Strings, however when I try to [...] read more
java
android
android-studio
qr-code
1vote
1answer

Add reward points flutter

I want to make a reward points app, for that i use a random function. The problem is i don't know how to add this number to the previous number. to get sum points.enter image description here [https://i.stack.imgur.com/Z1NYW.png] And here is the result i want to have the sum point [...] read more
flutter
points
1vote
0answers

TLS/SSL RABBIT MQ (Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host..)

TLS/SSL following steps as: To create the root CA certificate 1. genrsa -des3 -out CA-key.pem 2048 2. req -new -key CA-key.pem -x509 -days 1000 -out CA-cert.pem -subj "/C=US/ST=Oregon/L=Portland/O=user/OU=Org/CN=right.xcl.one" To create a Signing a Server Certificate: 1. genrsa -des3 -out server-key.pem 2048 2. req –new –config openssl.cnf –key server-key.pem –out signingReq.csr [...] read more
c#
.net
security
ssl
rabbitmq
1vote
0answers

Simply disassemler with ptrace request

I am trying to learn how breakpoints software works with pctrace (inserting INT3) in the code. For this I have followed a series of examples from different sites to create a simple disassembler, and I have been doing a kind of merge with them according to what interested me. The [...] read more
disassembly
ptrace
1vote
0answers

How to navigate to one page to another page using textfield in flutter?

I have added 62 pdf pages in ListView. class MyApp extends StatefulWidget { String _pdfPath; int currentPage; ScrollController Controller = ScrollController(); set PdfPath(String path) { if (path != _pdfPath) { _pdfPath = path; } } @override _NativePdfState createState() => _NativePdfState(_pdfPath,currentPage); } class _NativePdfState extends State<MyApp> { String _pdfPath; int _currentPage; [...] read more
flutter
dart
scroll
1vote
0answers

app crashing at run time after tying to change vision code

i worked on an update in my app that is on play store on i want to change the version code which i did in the yaml file but now if i install the apk it will crash at run time. Even the debug mode too is crashing in the [...] read more
flutter
1vote
2answers

Image positioning in Listview search

I have a problem with the pictures when I use the search then the app always takes the first picture instead of the picture that belongs. I added two pictures where you can see what I mean by "Adrenaline". Can someone help me by chance? I would be very happy. [...] read more
java
android
1vote
1answer

How to write and call std::hash? - for gmp's mpz_class and mpz_t

I think most of the work is done here, just a little detail is missing at the end. Read on. I'm trying to write the glue code for using MurmurHash3 to hash big integers ( mpz_t and mpz_class) of the GMP library in C++. I do this in order to [...] read more
c++
hash
unordered-map
gmp
1vote
1answer

Warning: Module 'curl' already loading in Unknown on line 0 (Fix this from a custom.php.ini file)

After doing some research on the site this error occurs because of the php.ini file most likely including a reference to load the extension when it was already compiled into the PHP. That said, I'm using Docker and Docker-Compose. I found a way to keep the default php.ini file and [...] read more
php
curl
docker
composer-php
php-ini
1vote
0answers

Cant store firebase storage image url to firestore

I'm writing a code to save data in firestore, but it saves other data without image url. Here is my code: import 'package:flutter/material.dart'; import 'package:flutter_learning_app/Models/notice.dart'; import 'package:flutter_learning_app/Services/crud.dart'; import 'package:uuid/uuid.dart'; class NoticeProvider with ChangeNotifier { final firestoreService=FirestoreService(); String _userName; String _userPost; String _date; String _photoUrl; var uuid=Uuid(); //setters changeUserName(String value){ _userName=value; [...] read more
flutter
dart
google-cloud-firestore
firebase-storage
imageurl
1vote
1answer

Break at address "0xXXXXXX" with no debug information available, or outside of program code

Configuration: Using Nucleo-L476RG. Using GNU ARM Eclipse. I have generated a minimalist code from STM32CubeMX. I have flashed J-link driver in my on board ST-Link. Have been trying to run debugger for my code but my program counter is not setting at main().Instead it fails to read a certain memory [...] read more
eclipse
stm32
program-counter
nucleo
gnu-arm
1vote
3answers

setColor not working after Android 10 (API 29) upgrade

My code paint.setColor(0xFFFFFFFF); was successfully running before upgrading to Android 10. Now it throws an error: > Wrapped java.lang.IllegalArgumentException: Invalid ID, must be in the range [0..16) (Looks like the error message is trimmed) Nevertheless, paint.setARGB(255,255,255,255); works fine. I've read that starting API 29, setColor also accepts long color values, [...] read more
java
android
paint
1vote
0answers

Opcache self clears and breaks code execution

I have a Magento 2 store, but this seems to be a PHP issue, with opcache enabled and sometimes the opcache seems to clear itself and I end up with a store were some actions can't be performed. Sometimes when I manually clear opcache, I also get errors and the [...] read more
php
magento
opcache
1vote
3answers

Bringing in a Function from Javascript to Big Query StandardSQL

I have a javascript that assigns a certain bucket to a customer according to the algorithm number and test number (function getBuckets). However I am having trouble bringing this function over from the javascript and defining it into standard sql. So I can use it on specific databases. Here is [...] read more
javascript
google-bigquery
user-defined-functions
1vote
0answers

STM32H7 SPI communication: FIFO management problem

I've been struggling for quite a while now on my SPI setup. The setup is as follows: * SPI Slave is a Nucleo STM32H743 in simplex mode, clocks at maximum (sysclk 400MHz, hclck 200Mhz, APB clock 100MHz) * SPI master is another identical Nucleo in simplex mode, clocks divided by [...] read more
stm32
spi
cortex-m
1vote
6answers

Change View Color with alpha animation

I am writing an code where need to modified view background from one color to other color along alpha animation. I tried with ObjectAnimator backgroundColorAnimator = ObjectAnimator.ofObject(stickyLayout, "backgroundColor", new ArgbEvaluator(), 0xFFFFFFFF, 0xff78c5f9); EDIT: Since most of us not clear, Assume we need to change this color with alpha on seekbar [...] read more
android
android-animation
background-color
1vote
5answers

virtual listbox in Swing

I'm trying to figure out how to make a virtual listbox (or tree or outline) in Swing -- this would be one where the listbox can show a "view" within a large result set from a database without getting the entire result set's contents; all it needs to give me [...] read more
java
swing
list
virtual
1vote
2answers

Using XSETBV to write to XCR0 creates a general protection fault in a VM on hardware that supports MPX

I am trying to write to Extended Control Register 0 (xcr0) on an x86_64 Debian v7 virtual machine. My approach to doing so is through a kernel module (so CPL=0 ) with some inline assembly. However, I keep getting a general protection fault (#GP) when I try to execute the [...] read more
c
linux-kernel
x86
virtual-machine
vmware
1vote
1answer

C++ find range ip addresses by significant bits

I have the following code for find range of the ip addresses v4. It works perfectly: uint32_t byte1 = 0, byte2 = 0, byte3 = 0, byte4 = 0, significantBits = 0; int read = sscanf(ipRangeStr.c_str(), "%3d.%3d.%3d.%3d/%2u", &byte1, &byte2, &byte3, &byte4, &significant); if (read < 4) { throw std::runtime_error("Cannot parse [...] read more
c++
boost
1vote
1answer

Why gcc place a large constant array to ".rwdata" section rather than ".rodata" section?

/* 0xFFFFFFFF * 256*/ #define test_256X0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, ... 0xFFFFFFFF After compiling, the const array is placed in ".rwdata" section rather than ".rodata" section, and I don't know why. After google and searching the stackoverflow site, there is no specified answer. Does any one know why or how to [...] read more
c
gcc
linaro
1vote
0answers

ffmpeg scanline ordering in rawvideo AVI format

I am using ffmpeg to transcode videos into a specific AVI format using ffmpeg.exe -i "Input.ext" -y -vcodec rawvideo -pix_fmt rgb555le -an -map_metadata -1 TEST_ENCODE.avi. The resulting AVI is an input for a legacy command-line program that is no longer supported. Unfortunately, this program is unable to read AVIs produced [...] read more
ffmpeg
avi
1vote
1answer

Codec and setting for lowest bitrate ffmpeg output

I need to convert my input audio file to the lowest possible size to transfer it over a radio transmitter. Now with the AAC codec and MP3 format I used 8kbps for bit rate, 16 kHz for sampling rate and 1 channel, and my output data is about 3kb per [...] read more
audio
ffmpeg
android
mp3
1vote
1answer

Wireguard tunnel slow and intermittent

After asking this question I've gotten a wireguard vpn set-up that forwards all traffic from my local lan to a remote server. Connecting from the wireguard client host is fast. However, the connection from clients on the lan is much slower and drops a lot of connections. Traceroutes show that [...] read more
vpn
wireguard
1vote
1answer

Debian not detecting NVMe, ASUS Zenbook UX430UA

I'm trying to set up a Win 10 / Debian 10 dual boot on an Asus UX430UA that I've just bought new. I replaced the OEM SATA SSD with a larger NVMe SSD (ADATA XPG SX8200) and am trying to install both OS's on the same SSD, as I've done [...] read more
linux
debian
ssd
asus-laptop
nvme
1vote
1answer

php and zendguard with asterisk / freepbx

Im running freepbx version 13 and started to upgrade to version 14. System is on a CentOS 6 system. The system required certain upgrades first including php which I've upgraded to 5.6.40 and installed zenguardloader 2.6.0 I'm assuming there is some sort of incompatibility between php and zenguardloader as I [...] read more
php5
freepbx
1vote
0answers

Find cause of BSOD

Recently, I started getting BSODs a few times a week. I have a hunch that they are related to the display driver/docking station (I'm using IBM T480) because they seem to happen around the time I connect/disconnect to the docking station and more importantly, I don't actually see the BSOD, [...] read more
windows-10
bsod
1vote
0answers

Missing memory in linux ubuntu 16.04 system

I've been struggling with this problem for quite some time and am completely out of ideas. I have 8GB memory installed, but ubuntu sees only 3.2 GB. Hardware: Mother Board Information Intel DG965SS Processor Information Socket Designation: LGA 775 Type: Central Processor Family: Core 2 Manufacturer: Intel(R) Corporation ID: F6 [...] read more
linux
ubuntu
memory
1vote
0answers

The system time interval between Arm and Ubuntu

Problem Description: With Arm machine as a Server, with Ubuntu as a Client, Server via the Client send time package to sync that time, after synced time, Comparing their time, I found that with a continuation of the time, the time difference is bigger and bigger, I suspect that may [...] read more
linux
ubuntu
1vote
0answers

SOME/IP length error in trace window when sending SOME/IP messages from CANOE using CAPL script

I am getting SOME/IP length error(but getting correct data) in trace window when sending SOME/IP messages from CANOE using CAPL script. I think i am missing any settings that should be done in Canoe. Can anyone suggest a possible reason for this? and how to solve this? The code used [...] read more
networking
1vote
0answers

GRUB2 fails to boot multiboot compliant kernel that worked with GRUB Legacy

I have been trying to port a non-Linux mostly multiboot 0.6.96 compliant (the multiboot header is past 8 KiB) 32-bit elf kernel from GRUB Legacy to GRUB2. Currently, the kernel and GRUB are placed on a USB which is used to boot a different computer via the BIOS, like a [...] read more
boot
usb
grub
1vote
0answers

Error 582 while trying to access Windows Features

Today went to turn on the Hyper-V feature in the "Turn Windows Features On and Off" settings, but the dialogue would always just load for like 20 seconds then crash my machine. I looked up alternative ways to view/access the Windows Features and found you could do it from DISM [...] read more
windows-10
dism
1vote
1answer

Windows 7 OK button on Copy To dialog doesn't copy profile

So I am attempting to copy a User Profile to the default profile. I am using WinSpy++ to enable the disabled "Copy To" button - this process works on a stock laptop I have here. However, this does not work in a customised image I have with a fair amount [...] read more
windows-7
windows-registry
user-profiles
event-log
windows-embedded-7
1vote
2answers

How to add routing for 2 VPN connections?

I am trying to setup second VPN connection over the first one, which is my only option at the moment. The first VPN connection works fine(utun1), providing me internet access and it looks like this: Internet: Destination Gateway Flags Refs Use Netif Expire 0/1 10.56.10.5 UGSc 0 0 utun1 default [...] read more
networking
macos
vpn
routing
1vote
2answers

Mount ancient PATA disk (from a 386) to restore files (ATA 1, or older)

I have a PATA disk from a 386 laptop (1995?) which I would like to get files off. It is a Seagate 9096A, and is working. Using the old laptop is not possible. I have tried a USB - 2.5" PATA adapter, but it failed to properly interface with the [...] read more
hard-drive
1vote
1answer

Semi-disconnected network drives Windows 10 after timeout

I'm using Windows 10 in our company for a couple of weeks. Using the GPO (I'm a domain admin myself) we added some network drives for all users of our domain. This works fine. But.... For some reason, after a while my network drives are semi-disconnected. I use the word [...] read more
windows-10
network-shares
connection
1vote
0answers

Web Services for authentication over SSL failed due to TLS 1.2 on Windows Server 2012 and IIS 8

There are a SSL vulnerability called POODLE discovered by Google team in SSLv3 protocol. So uses of SSLv3 is not secure to use. Now its recommended to use TLS 1.2. We have IOS applications that are using web services over SSL for login to app. Apps started throwing error as [...] read more
login
ssl
windows-server-2012
https
web-services
1vote
1answer

linux drops packet when trying to route it - why?

I track packets using LOG targets for all chains of all tables and the last chain I see my packet in is the POSTROUTING chain of the mangle table: mangle_PREROUTING: IN=eth0 OUT= MAC=00:16:3e:0f:01:00:00:16:3e:0f:02:00:08:00 SRC=10.2.1.2 DST=10.1.1.2 LEN=84 TOS=0x00 PREC=0x00 TTL=63 ID=60912 PROTO=ICMP TYPE=0 CODE=0 ID=41230 SEQ=1 As off http://inai.de/images/nf-packet-flow.png, I expected [...] read more
networking
routing
iptables
1vote
0answers

Higher resolution not available Ubuntu 14.04 on ESXi host

The maximum resolution available for my Ubuntu 14.04 vm is 1360x768. However, the max resolution for my Ubuntu 16.04 is 2560x1600. Both are running on the same ESXi host with the same video card settings. Both have the latest version of VMware tools installed. The physical monitor I am accessing [...] read more
ubuntu-14.04
esxi
1vote
1answer

How to set up dual quadro cards on RHEL 5.5?

I have a RHEL 5 workstation with 2 nvidia Quadro FX4500 cards, with one display attached to each card. After doing a clean install of RHEL 5.5, the second display doesnt work (it worked ok in RHEL 5.2). Neither separate X screens nor Xinerama are working. The kernel version is [...] read more
multiple-monitors
redhat-enterprise-linux
nvidia-quadro
1vote
0answers

Is my NVIDIA GT 540M having a hardware failure?

I'm using a Sager NP5160 laptop, which has an NVIDIA GT 540M dGPU as well as integrated graphics. I'm dual-booting Windows 7 and Linux Mint. I've recently noticed issues with games not performing as well as they should when I switch to balanced mode (from UMA mode) in Windows 7. [...] read more
graphics-card
hardware-failure
nvidia-geforce
discrete-graphics
1vote
0answers

Mac not setting routes on openconnect with vpnc-client

I'm trying to connect to a VPN on my Mac, but for some reason routes aren't being set, even though they seem to be set by the vpnc-client script. root@machost:/Users/username# cat .openconnect authgroup=AUTHGROUPHERE user=USERHERE script=/usr/local/bin/vpnc-script no-cert-check #background #passwd-on-stdin root@machost:/Users/username# openconnect --config=.openconnect HOSTHERE POST https://HOSTHERE/ Attempting to connect to server 1.1.1.1:443 [...] read more
networking
mac
vpn
routing
cisco-vpn-client
1vote
1answer

What does netstat -r on OSX tell you about gateways?

I noticed the route table has a lot of entries I do not understand. The route tabel is: Internet: Destination Gateway Flags Refs Use Netif Expire default 192.168.0.254 UGSc 28 0 en1 10.8.0.1/32 10.8.0.5 UGSc 1 2 tun0 10.8.0.5 10.8.0.6 UH 2 3 tun0 127 localhost UCS 0 284 lo0 [...] read more
macos
networking
vpn
routing
netstat
1vote
1answer

Packets marked by iptables only sent to the correct routing table sometimes

I am trying to route packets generated by a specific user out over a VPN. I have this configuration: $ sudo iptables -S -t nat -P PREROUTING ACCEPT -P OUTPUT ACCEPT -P POSTROUTING ACCEPT -A POSTROUTING -o tun0 -j MASQUERADE $ sudo iptables -S -t mangle -P PREROUTING ACCEPT -P [...] read more
iptables
openvpn
iproute2
1vote
0answers

Auto-mount all USB-devices at same USB socket to same mountpoint

* I have a small computer with 2 USB sockets : A and B. * I want any external USB disk, attached to socket A - to be mounted as " deviceA" * I want any external USB disk, attached to socket B - to be mounted as " deviceB" [...] read more
linux
ubuntu
usb
debian
automount
1vote
0answers

Using TC from iproute, unable to match canid

I'm trying to use tc from iproute2 to prioritize packets sent to a canbus. Before doing so I read this guide about the issue: http://rtime.felk.cvut.cz/can/socketcan-qdisc-final.pdf Even using the exact examples from that pdf, I'm not able get any of the filters to get a match. My current version of kernel [...] read more
linux
networking
iproute2
1vote
0answers

Why did my ubuntu machine leave suspend?

Sometimes I come upstairs and my computer has left suspend and is booted or booting or whatever. Is there a log somewhere that will show what caused it to leave suspend? (ie mouse, keyboard, magic packet, power button?) This is what I see in dmesg: [191069.614821] init: anacron main process [...] read more
linux
ubuntu
hibernate
1vote
1answer

MFT / NTLDR / NTFS (external drive) damaged after ntfsresize (Linux)

I have had an external USB drive attached to a RaspberryPi (headless), 1.5 TB Volume, 100% partition NTFS. During this question Creating ext4 partition from console, my goal was to change the overall fs to ext4 by shrinking the ntfs partition to 50%, copy all files to the new partition [...] read more
linux
ntfs
mft
ntldr
ntfsresize
1vote
1answer

How do I stop Spotify from crashing?

I am using Spotify on wine on Linux (Ubuntu). It worked fine before, but after I uninstalled and re-installed it, for some reason every time I run it, it doesn't work. It crashes after I log in. When it crashes I can see the Spotify window. When it crashes, Spotify [...] read more
linux
ubuntu
wine
spotify
1vote
0answers

Mac crash report info - what can I learn from it?

My Mac (MacBook Pro, 10.7.3 OS) is crashing a couple of times a day. I started this behaviour just recently, and for no apparent reason. I've done a disk check and it all seems fine. When it crashes, the screen goes black and I have to long-press the power button [...] read more
macos
mac
crash
1vote
0answers

Mac crashing with black screen on XCode install + random other times

I have a Macbook Pro bought over a year ago without extended warranty. Lately it has started crashing as follows - the screen goes black. The last note of the music (if playing, radio or iTunes) loops repeatedly. It will not go into in standby when screen is closed. Power [...] read more
mac
crash
xcode
1vote
4answers

Kernel Panic every time I open a print queue

Every time I open any printer queue I get a kernel panic and have to reboot. It's quite frustrating. I've tried removing/adding printers, clearing all caches with Onyx, repairing permissions, all manner of things to no avail. Any tips would be greatly appreciated! ==== CRASH REPORT ==== Interval Since Last [...] read more
macos
printing
osx-leopard
kernel-panic
0votes
1answer

ipnat.conf - map and rdr won't work!

I can't put my mind around it, before reboot I was able to ssh in from outside to my jail and right now I can't! I even rebuild the whole system and even that didn't help:( anyone have any ideas? su-3.2# cat /etc/ipnat.rules map fxp0 lama -> 0/32 rdr fxp0 [...] read more
freebsd
nat
0votes
1answer

"ip rule to" works but "ip rule fwmark" fails - why?

I have a CentOS 6 (kernel 2.6.32) router with working OpenVPN client on it, and I want to redirect some traffic via VPN server. Client (192.168.60.159) sends request to router (192.168.60.6:1443), and router redirects it via VPN connection (10.200.0.54) to server (185.61.149.21:443). I've created a specific routing table tunde and [...] read more
iptables
iproute2
0votes
2answers

RDP in 2008 R2 domain no longer working - possible Kerberos issue

Everything was working fine and no changes were made. For no apparent reason, we can no longer RDP to any domain computers except for the domain controllers themselves. This includes Windows 7 clients and non-controller 2008 R2 servers. After entering the password, we immediately get the following error message: "The [...] read more
windows-server-2008
remote-desktop
rdp
kerberos
0votes
0answers

Supplemental to Need to replace the HDD on a single disk system

This question is a follow on to my original. The situation is a host with a single HDD must be cloned to a larger HDD over the network. I ran a couple of tests of a clonezilla live remote transfer from a 500Gb HDD to a 1000Gb HDD. The second [...] read more
centos6
lvm
clonezilla
0votes
2answers

Can't connect to a postgres server

I have a strange situation, I have created a second postgres server that will eventually become a slave to my current master, anyway for testing purposes I have currently installed postgres, and testing connections from other hosts. In my postgresql.conf I have a nice an easy:listen_addresses = '*'# what IP [...] read more
postgresql
freebsd
0votes
1answer

Using tc filter together with Snort

I need to add delay to packets after doing some modification using the SNORT inline module. However, I cannot seem to get the packets to match a filter using tc filter ... It always matches the default filter. The commands I am using are stated below: sudo tc qdisc del [...] read more
tc
snort
0votes
0answers

Samsung NVMe disappears when server on average to high load

Hello to the community! Let me get into the details of the problem itself. We have a total of 6 SuperMicro Servers in a cluster. The problem occurs only in 3 them, which are the newest generation. The same thing happened on all three nodes (different times, same day). I [...] read more
xen
glusterfs
supermicro
pci-express
nvme
0votes
2answers

How to configure IPsec (strongswan) interface, so that only assigned interface gets virtual ip?

I have already used this configuration a bunch of times and I haven't had this problem before. Basically I establish the tunnel connection, but after connecting (with swanctl --initiate --child ch_vti0 --ike ch_vti0) I get my virtual ip assigned on the appropriate interface vti0, but also I have the same [...] read more
networking
ipsec
strongswan
bug
0votes
1answer

HAProxy 1.5.4 Performance Tuning

I currently have HAProxy 1.5.4 setup using keepalived for HA on centos 7 using IPtables to create a transparent load balancer to load balance a number of cisco WSA proxy servers for internet filtering on an infrastructure of around 15,000 users running on vmware and cisco UCS with one GB [...] read more
haproxy
0votes
0answers

ipfw dummynet per ip fair traffic shaping

I want to shape traffic in such way, that no specific user could exhaust WAN connection that much so other users would be affected. I have ISP link with 100Mbits/s bandwidth and sometimes some users can exhaust it when they download something from internet or via vpn from smb in [...] read more
firewall
freebsd
ipfw
0votes
1answer

Nginx IP transparency reverse proxying but upstreams need to be able to initiate connections to Internet

I have a docker swarm consisting of an Nginx service that serves as a reverse proxy for a couple of other upstream services, web and mail. Both web and mail service need to connect to an external service via HTTPS in order to perform authentication. The mail service needs to [...] read more
linux
networking
nginx
iptables
docker
0votes
0answers

IPSec tunnel causes huge packets lost when pinging gateway and other machines

My Ubuntu machine is 10.0.0.15, my Windows machine is 10.0.0.10. My gateway, that routes the Internet traffic to the LAN is 10.0.0.1. When I ping the gateway from my Windows machine everything is fine - I get every single packet back. Same holds true, when I ping the Ubuntu machine [...] read more
networking
linux-networking
ipsec
ubuntu-18.04
icmp
0votes
1answer

IPVS traffic doesn't seem to go through netfilter on the director node

I have the following setup on a director node running keepalived: * native IP 10.65.5.72 * VIP 10.65.5.230 * keepalived DR mode enabled for port 80 and 443 I was debugging a problem where I couldn't access the IPVS service from the director node itself, and during that process noticed [...] read more
iptables
ipvs
0votes
0answers

Jboss EAP5 fails to start on Linux

I am trying to start JBoss EAP5 server on Linux CentOs machine. However, the process gets killed abruptly and I get nothing in the boot.logs. Please find the logs below: Server Library URL: file:/usr/share/jboss-5.1.0.GA/server/default/lib/ Server Log Dir: /usr/share/jboss-5.1.0.GA/server/default/log Server Native Dir: /usr/share/jboss-5.1.0.GA/server/default/tmp/native Server Temp Dir: /usr/share/jboss-5.1.0.GA/server/default/tmp Server Temp Deploy Dir: [...] read more
linux
jboss
0votes
0answers

Why can't I ping 127.0.0.1 from some network interfaces?

I'm on OS Sierra. This is (part of) what I get on ifconfig ... en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether 98:01:a7:b4:91:63 inet6 fe80::4e:52ae:9fa8:2e6c%en0 prefixlen 64 secured scopeid 0x5 inet 192.168.1.33 netmask 0xffffff00 broadcast 192.168.1.255 nd6 options=201<PERFORMNUD,DAD> media: autoselect status: active ... utun1: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> mtu 1400 inet 10.161.136.55 --> 10.161.136.55 netmask 0xffffffff [...] read more
networking
netstat
ifconfig
0votes
1answer

RabbitMQ SSL connection works from an Ubuntu14.04 machine but not from a CentOS 6 machine

I have setup a rabbitmq ssl connection on my remote server as per the docs here: https://www.rabbitmq.com/ssl.html I am using java rabbitmqclient to connect to the remote server and sending a hello message to a queue on rabbitmq-server, the connection works fine from my local ubuntu 14.04 machine but does [...] read more
centos
ssl
java
openssl
rabbitmq
0votes
2answers

Run OpenVPN server on alias IP

I want to configure OpenVPN server that works on alias IP. I changed the client config to have alias IP as remote and added "local 188.xx.xx.55" in OpenVPN config which is our alias IP. Also set "netd_interface=188.xx.xx.55" which is again alias ip. When the VPN connects and I check my [...] read more
openvpn
ip-aliasing
0votes
1answer

RDS 2012 R2 some users are not able to logon after changed date and time on Connection Brokers

Due to a malconfigured NTP server of ntp.org, the date and time on all our servers and client was set to the date of tomorrow (1/1/2017 instead of 31/12/2016). We've manually changed the date back to the date of today on our Primary Domain Controller (PDC) and executed w32mt /resync [...] read more
windows-server-2012-r2
remote-desktop-services
0votes
1answer

How do I load balance outgoing connections with iptables and iproute2?

I have a server behind two public facing gateways INTERNET | | GW1 GW2 | | SERVER GW1's IP is 192.168.w.x, MAC aa:bb:cc:dd:ee:ff GW2's IP is 192.168.y.z, MAC ff:ee:dd:cc:bb:aa # note: w != y and I'm trying to load balance outgoing connections from the server. I've built upon pepoluan's solution [...] read more
iptables
load-balancing
iproute2
0votes
1answer

Two Azure VM clones have different processor

I have two Ubuntu 16.04 Azure VMs created from the same image, in the same region (WestEurope), configured to be the same size (Standard A1, 1 vcpus, 1.75 GB memory) and created at the same time (days of difference). Inspecting the CPU info they are completly different, one being a [...] read more
azure
0votes
1answer

Opcache not working properly

I got problem with Opcache. It's not working as I wish/desire.. This is my opcache configuration cat /etc/php/7.1/apache2/php.ini | grep opcache [opcache] opcache.enable = 1 opcache.enable_cli = 1 opcache.memory_consumption = 256 opcache.interned_strings_buffer = 16 opcache.max_accelerated_files = 8882 ;opcache.max_wasted_percentage=5 ;opcache.use_cwd=1 opcache.validate_timestamps = 0 opcache.revalidate_freq = 0 ;opcache.revalidate_path=0 ;opcache.save_comments=1 opcache.fast_shutdown = 1 [...] read more
apache-2.4
php7
opcache
0votes
1answer

Route ftp packets to one network interface, the rest to the other

I have an ubuntu 14.04 server with two NICs, each one connected to seldom routers, each with separated internet access. We want to redirect ftp ports traffic through the second interface, em1, and all the rest through the default interface p4p1. I have both interfaces up. I've followed the instructions [...] read more
iptables
routing
linux-networking
0votes
1answer

Windows Server 2012 R2 - Help finding failed logon attempts source

I'm seeking help for this issue that I'm having in our AD domain controller where a lot of security events are being logged due to failed logon attempts by a (former) domain user that has been disabled and subsequently deleted. I'm trying to pin-point the origin of these attempts but [...] read more
active-directory
windows-server-2012-r2
domain-controller
windows-authentication
eventviewer
0votes
2answers

Inconsistencies with Linux tc filter u32 matching on packet data payload - can someone explain?

I would just like some heads up on this as I really don't understand -why- this is the case. Further down is the TCPDUMP output (tcpdump -s0 -XXnni eth0 tcp port 80) of the 'HTTP' response a webserver gives when a normal GET request is made to it. What I [...] read more
linux
networking
filter
pcap
tc
0votes
0answers

Ubuntu Server 16.04 64bit had only 8Gb of RAM when 16GB are installed

I have one DIMM installed on a Lenovo x3550 M5 server. The OS is Ubuntu 16.04.2 64 bit uname -ra Linux hostname 4.4.0-62-generic #83-Ubuntu SMP Wed Jan 18 14:10:15 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux free -hm gives: total used free shared buff/cache available Mem: 7.2G 238M 6.5G 20M 474M [...] read more
ubuntu
memory
0votes
1answer

Kerberos authentication ticket - Event ID 4768 - Audit failure

I am using kerberos to authenticate a user and its failing. Audit failure details in event viewer are following A Kerberos authentication ticket (TGT) was requested. Account Information: Account Name: HTTP Supplied Realm Name: TEST.COM User ID: NULL SID Service Information: Service Name: krbtgt/TEST.COM Service ID: NULL SID Network Information: [...] read more
windows-server-2008
active-directory
kerberos
0votes
2answers

4 TB external disk on Centos 5

I have an old server running CentOS 5(Kernel 2.6.18-92.el5). It is running a legacy application so I can't retire it yet. I had connected a 2 TB USB disk to it to take backups and the disk is almost full right now. I bought a new 4 TB disk but [...] read more
partition
centos5
fdisk
parted
0votes
1answer

OpenVPN block SMTP Access Server completely

I've tried almost all iptables rules to block smtp on openvpn server but still clients clients can access remote smtp servers on port 25. I'm using openvpn access server. It's creating two interfaces as0t0 and as0t1. All users assigned ips from 172.16.0.0/12. Please help me what rules can be written [...] read more
iptables
smtp
openvpn
0votes
1answer

Network configuration fault

I'm moving my router from Rpi with Rasbian to another pc device with ubuntu server 14. I have: - local network 10.0.0.0/16, with my router gateway 10.0.0.1 - lte usb device 192.168.8.1 in network 192.168.8.0/24 - lte usb device 192.168.10.1 in network 192.168.10.0/24 I have moved all network settings with [...] read more
linux
ubuntu
iptables
routing
0votes
1answer

Captive portal with iptables and local dns server

I'm trying to redirect all the browser's requests from my wifi interface wlan1 to a captive portal. I have a node web server running on my target on 10.4.30.34:4040. It has to redirect the browser directly to the web server, on the good port, like I entered "10.4.30.34:4040" in the [...] read more
iptables
dnsmasq
captive-portal
0votes
1answer

CentOS Development Server Crashing Frequently

I am running a development server on a fairly old version of CentOS 5. This server has been live almost constantly for the past five years ago, so has been pretty stable. A while ago, it crashed during normal operation. I restarted it and it crashed again after a few [...] read more
centos
centos5
server-crashes
0votes
1answer

unable to find driver - lamp debian

This is my php sample script: <?php try{ $db=new PDO('mysql:dbname=_mydb;host=localhost', 'root', 'xxxxxx'); }catch(PDOException $e) { echo "Error: ".$e->getMessage(); } ?> And I have returned: could not find driver Also: user@nbook:~$ php -i|grep PDO PDO PDO support => enabled PDO drivers => mysql PDO Driver for MySQL => enabled This is [...] read more
mysql
php
pdo
0votes
1answer

"No inittab file found" after reset

An old dedicated server (Debian with Raid1) wasn't responding today and now can't boot after manual reset. Last message is > No inittab file found. I still have access to filesystem via rescue system. Ran fsck and checked raid (both arrays are clean). Booting 'Debian GNU/Linux, kernel 2.6.26-2-amd64 Default' root [...] read more
debian
raid
boot
inittab
0votes
1answer

PBR with iptables

I know question was answered multiple times, but this situation a bit different. So here is what I have: * All users must user default gateway on eth0, except one * That one must only use gateway on eth1 and must not under any circumstances use eth0 Separately this things [...] read more
debian
iptables
routing
policy-routing
0votes
1answer

LAMP server kerberos config to authenticate against a read only Windows KDC in a dmz

Background: We have a number of AD networks (domains) that are connected through VPNs and have established AD trust relationships. We have an externally hosted web server and have configured seamless authentication for any user within the trusted network. This works but the presence of the VPN to an external [...] read more
apache-2.2
active-directory
kerberos
dmz
domain
0votes
1answer

iptables rules for lvs using piranha gui

I am trying to bulid an lvs system, where 202.141.81.239 is the virtual IP and 202.141.81.241 and 202.141.81.242 are the lvs routers.Ths system is working fine in our intranet but is not through internet. The following is my iptables configuration # Generated by iptables-save v1.4.7 on Tue Mar 25 12:30:26 [...] read more
redhat
lvs
piranha
0votes
0answers

iptables 1.4.12 invert and --u32

This line in a script: iptables -A jk2_ddos -m u32 ! --u32 "0x1c=0xffffffff" -j ACCEPT will result in this error: iptables v1.4.12: u32: option "--u32" cannot be inverted. This seems not to work in iptables 1.4.12. In older versions it worked. I need something that does the same. The problem [...] read more
linux
iptables
0votes
1answer

debugging smtp | ubuntu 12.04, postfix, dovecot

I cannot sucessfully connect to my smtp server from my mail client. I am getting the following errors in my /var/log/mail.log file Dec 21 15:08:04 pareto postfix/smtpd[11101]: SSL_accept:SSLv3 flush data Dec 21 15:08:04 pareto postfix/smtpd[11101]: read from B96D2180 [B96C1EB3] (5 bytes => -1 (0xFFFFFFFF)) Dec 21 15:08:04 pareto postfix/smtpd[11101]: read [...] read more
email
postfix
smtp
vps
dovecot
0votes
1answer

traffic shaping, prioritizing packets without using a bitrate ceil/max

I've written a script that shapes traffic into 3 pipes. The first pipe needs to be high priority and always be send first. This works perfectly now on 1 condition. I enter a correct ceil/max bitrate. This script is written to work an a device that will work with lots [...] read more
linux
networking
traffic-shaping
0votes
1answer

BAT file will not run from Task Scheduler but will from Command Line

I'm trying to run a BAT script from Task Scheduler in Windows 2008 R2 and it runs for 3 seconds and then stops. It says it successfully completes but I know it doesn't. I can run this script from the command line directly, and it runs just fine. The bat [...] read more
windows-server-2008-r2
task-scheduler
0votes
0answers

Physic memory cannot be wrriten after paging

In my toy kernel, I active paging and assigned a memory chunk to the variable, but it seems that the memory can not be written. The CPU can access the memory, and interrupt is active. No page fault and any error. The memory can be successfully read but any assignment [...] read more
c
operating-system
kernel
paging
0votes
0answers

Flutter Error: type 'List<dynamic>' is not a subtype of type 'Map<String, dynamic>'

I am currently building an app to fetch data from an API and I am trying to parse a JSON api from JSON Placeholder. import 'dart:convert'; List<CandidateProfile> candidateProfileFromJson(String str) => List<CandidateProfile>.from(json.decode(str).map((x) => CandidateProfile.fromJson(x))); String candidateProfileToJson(List<CandidateProfile> data) => json.encode(List<dynamic>.from(data.map((x) => x.toJson()))); class CandidateProfile { CandidateProfile({ this.id, this.firstName, this.lastName, this.username, this.email, this.password, [...] read more
android
api
flutter
dart
mobile
0votes
1answer

Tesseract OCR string manipulation issue

I am hoping someone can help me witch this issue I am new to using Tesseract OCR so please bear with me. I created a simple code which allows me to extract text from an image. This works fine Code Below : private void button1_Click(object sender, EventArgs e) { List<string> [...] read more
c#
string
tesseract
0votes
0answers

Firebase Dynamic Link doesn't load the right route in Flutter (Android)

I have a problem with Dynamic Links (Fireabase) to load the right route when clicking an url. 1. I setup a link Review /review in Firebase Dynamic Links 2. I added SHA 1 and SHA 256 codes to the Android App 3. The app starts well and it also tracks [...] read more
android
firebase
flutter
dynamic-linking
firebase-dynamic-links
0votes
1answer

ASP.NER Core 3.0 Identity Server 4 (4.0.0) SecurityTokenInvalidAudienceException: IDX10214: Audience validation failed. Audiences: 'empty'

I keep getting the following error between postman and IdentityServer 4 Microsoft.IdentityModel.Tokens.SecurityTokenInvalidAudienceException: IDX10214: Audience validation failed. Audiences: 'empty'. Did not match: validationParameters.ValidAudience: 'MyNumberV2Api' or validationParameters.ValidAudiences: 'null'. at Microsoft.IdentityModel.Tokens.Validators.ValidateAudience(IEnumerable`1 audiences, SecurityToken securityToken, TokenValidationParameters validationParameters) at System.IdentityModel.Tokens.Jwt.JwtSecurityTokenHandler.ValidateAudience(IEnumerable`1 audiences, JwtSecurityToken jwtToken, TokenValidationParameters validationParameters) at System.IdentityModel.Tokens.Jwt.JwtSecurityTokenHandler.ValidateTokenPayload(JwtSecurityToken jwtToken, TokenValidationParameters validationParameters) at System.IdentityModel.Tokens.Jwt.JwtSecurityTokenHandler.ValidateToken(String token, TokenValidationParameters validationParameters, [...] read more
identityserver4
asp.net-core-3.0
0votes
1answer

How to precompile php opcache using command line?

I'm trying to warm up opcache via opcache.file_cache feature using console command. My opcache.ini: opcache.enable=true opcache.enable_cli=true opcache.memory_consumption=128 opcache.interned_strings_buffer=32 opcache.use_cwd=false opcache.max_file_size=0 opcache.max_accelerated_files=32531 opcache.validate_timestamps=false opcache.revalidate_freq=0 opcache.enable_file_override=true opcache.optimization_level='0xFFFFFFFF' opcache.file_update_protection=0 opcache.save_comments=false opcache.file_cache='/tmp/.opcache' opcache.file_cache_consistency_checks=false opcache.log_verbosity_level=0 before I start my php-fpm process I compile files by executing scrpt from clommand line: $getDirs = static function () [...] read more
php
caching
opcache
0votes
2answers

Query 100Gb of S3 data in milliseconds

I have json data in s3. data looks like { "act_timestamp": 1576480759864, "action": 26, "cmd_line": "\\??\\C:\\Windows\\system32\\conhost.exe 0xffffffff", "guid": "45af94911fb911ea827300270e098ff0", "md5": "d5669294f78a7d48c318ef22d5685ba7", "name": "conhost.exe", "path": "C:\\Windows\\System32\\conhost.exe", "pid": 1968, "sha2": "6bd1f5ab9250206ab3836529299055e272ecaa35a72cbd0230cb20ff1cc30902", "proc_id": "45af94901fb911ea827300270e098ff0", "proc_name": "gcxvdf.exe" } I have around 100GB of such jsons stored in s3, in folder structure like year/month/day/hour. I [...] read more
amazon-web-services
amazon-s3
amazon-redshift
amazon-athena
0votes
1answer

How do I get a view reference row number to know where the user clicked on the texxtviews in Android

`public void refereshBill(boolean all) { int rowTemp = 0 ; if (all == false ) rowTemp = rowIndex ; for (int row = rowTemp ; row <= rowIndex ; row++) { for (int i = 0; i < MAX; i++) { TextView editText = new TextView(this); GridLayout.LayoutParams param = new [...] read more
android
textview
0votes
3answers

'flutter run' on android command stuck at : [Waiting for observatory port ...]

So I'm struggling with compatibilities problem for 4 days now, iOS run and build works perfectly fine but the android version is struggling. The thing is that when trying to "flutter run" on an android device with API 27,28 or 29 the compiler get stuck onto this line : [ [...] read more
android
flutter
dart
0votes
1answer

Is there a way to control the leading element behavior of NavigationRail in Flutter?

Flutter recently launched their v1.17 (latest stable release) and in that they have included a new widget "Navigation Rail". Though this widget is still in its early stages(and I'm expecting a bit more additional properties like padding for NavigationRailDestination) it gives a whole new perspective to orthodox navigation. So while [...] read more
flutter
flutter-layout
0votes
0answers

Problem with flutter build apk file on real phone

I'm new in Flutter and Android Studio. My problem - when i run my app in android studio - all works good. But, when i upload build apk file to firebase "app distribution", install on real phone and try to launch - it has crashed on start - without any [...] read more
android
android-studio
flutter
0votes
0answers

Why my CustomScrollView is not scrollable?

I am beginner in Flutter, I have 4 Listviews having some conditions to be visible on screen and I am adding those in a CustomScrollView in SilverLists but due to some reason my screen is not scrollable. Here is my code: Widget build(BuildContext context) { return Scaffold( key: _scaffoldKey, appBar: [...] read more
firebase
flutter
listview
0votes
0answers

Mapping of Bios in Memory at System Init

Assuming I have a Bios EPFROM file that is 512K and the first bytes are e.g. 0xff 0xff and all the other remaining bytes are 0x00. When the system starts it will map the ROM to the top of the 4GB 32bit limit. Does that mean when I query the [...] read more
x86
intel
qemu
bios
0votes
1answer

Pyodbc: Login timeout expired

I am trying to connect to MS SQL Server using pyodbc on local system and on connect to instance i get error: [2020-06-21 15:39:04.110750]: ('08001', '[08001] [Microsoft][ODBC Driver 13 for SQL Server]SQL Server Network Interfaces: Error Locating Server/Instance Specified [xFFFFFFFF]. (-1) (SQLDriverConnect); [08001] [Microsoft][ODBC Driver 13 for SQL Server]Login timeout [...] read more
sql-server
python-3.x
pyodbc
0votes
0answers

Set Fwmark for the packet from the application

I can set the mark for a packet in iptables mangle table by doingiptables -t mangle -I PREROUTING -s 10.0.0.1 -j MARK --set-xmark 0x10/0xffffffff This way I can mark the packets with source IP 10.0.0.1 only with 0x10, or any other random value. But I want to mark the packets [...] read more
ubuntu
go
networking
iptables
0votes
0answers

Arm7 Timer0 interrupt only works perfectly within the simulation

I am trying to get the OSEK-Alarm mechanism to run on an arm7 (lpc2292). When simulating my Demo application withing the uVision5 IDE everything works fine. But executing the code on the target plattform it seems like the Interrupt only occures once. Unfortunately I cant attach a serial interface to [...] read more
c
timer
interrupt
arm7
0votes
1answer

RISC-V: Do 12-bit immediate logical operations operate on the whole register?

I am trying to write a simulator for a RISC-V CPU and can not find a definitve answer to my question. Let's say I want to use ANDI rs1, rd, 0xFFF with rs1 containing 0xFFFFFFFF and the immediate value being 0xFFF. Does the ANDI operate on the full register and [...] read more
riscv
riscv32
0votes
0answers

how to list dynamically radiobuttons contained in listTiles in flutter?

i would like to show a list of radiobuttons? this radiobuttons are contained in ListTile widget, i tried some code but nothing appears : when i put a single radiobutton , this appears but when i put a listview nothing appears on the page including others widgets Widget build(BuildContext context) [...] read more
flutter
0votes
1answer

Flutter GestureDetector is not working on functions

class GridDashboard extends StatefulWidget { final Function onTap; const GridDashboard({Key key, this.onTap}) : super(key: key); @override _GridDashboardState createState() => _GridDashboardState(); } class _GridDashboardState extends State<GridDashboard> { Items item1 = new Items( title: 'Books', img: 'assets/images/open-book.png', onTap: () { Books(); }); Items item2 = new Items( title: 'Audio', img: 'assets/images/headphones.png', onTap: [...] read more
function
flutter
dart
gesturedetector
0votes
1answer

Flutter: ListView inside Column inside Column

You read the title right. I have a nested widget inside a column. The widget itself is another column. The nested widget has a ListView in it, set to expanded. For some reason, Flutter doesn't like that. And I've been scratching my head all day on how to solve this. [...] read more
listview
flutter
flutter-layout
0votes
0answers

Feedback on Marvell 6176 DSA switch device tree and driver module code

On OpenWRT 5.4.42 kernel on an imx6, I'm seeing a kernel crash when loading builtin modules of igb driver and mv88e6xxx driver over PCI bus for this networking DSA Marvell 6176 switch, HW Block Diagram [https://i.stack.imgur.com/nuCSt.jpg] and the following device tree: &pcie { pinctrl-names = "default"; pinctrl-0 = <&pinctrl_pcie>; reset-gpio [...] read more
linux-kernel
linux-device-driver
embedded-linux
device-tree
0votes
1answer

Selected processor does not support `dmb ish' in ARM mode

I am building an embedded linux distro on a Beaglebone Black (AM335x chip Cortex-A8 Arm-v7 Instruction set) using crosstool-NG, U-Boot, Kernel (5.5.5) and buildroot. When compiling the kernel I am getting this error message: /tmp/ccxFZlyN.s: Assembler messages: /tmp/ccxFZlyN.s:39: Error: selected processor does not support `isb ' in ARM mode /tmp/ccxFZlyN.s:90: [...] read more
linux
gcc
arm
embedded
embedded-linux
0votes
0answers

Stuck on Spinkit loading screen when submit is tapped

I'm new to Flutter and hope I can get help from you lovely folk as I think after a few days of trying to crack this my hair are turning grey. Sorry if my terminology below is a little off! I've set up an app with a Cloud Firestore that'll [...] read more
firebase
flutter
google-sheets
spreadsheet
0votes
0answers

OnFocusChangeListener doesn't work on Textview in android

There are two textview: textview1 and textview2, and their background color are white initially.I want to implement such an effect: Click textview1—— textview1 turns black and textview2 turns white; Click textview2—— textview1 turns white and textview1 turns black; Obviously, I need to set OnFocusChangeListener on them, and set their XML [...] read more
android
focus
listener
0votes
0answers

The getter 'current' was called on null

I am creating a signUp form in flutter and I am trying to apply validator on the TextFormField and calling if the user forgets to fill a field he gets validation alert message. But I don't know why it not working. The thing is that I am unable to understand [...] read more
android
flutter
0votes
0answers

Data binding on map Fragment error how to solve

Caused by: java.lang.IllegalArgumentException: Binary XML file line #9: Duplicate id 0x7f080124, tag null, or parent id 0xffffffff with another fragment for com.google.android.gms.maps.SupportMapFragment if (view != null) { Log.e("remove", "fragment: " ) val parent = view!!.getParent() as ViewGroup parent.removeView(view) } binding = DataBindingUtil.inflate( LayoutInflater.from(context), R.layout.fragment_request_ride, container, false ) read more
android
mvvm
data-binding
0votes
2answers

Navigate Flat Button to Another Screen from Bottom Navigation Bar Item current Index using Provider

I created a provider using the provider package that tells if an item on the BottomNavigationBar is pressed, so that the page displayed matches the item from the BottomNavigationBar on the body properties of the Scaffold. I've made a screen with TextFormField and FlatButton on the first BottomNavigationBar item. what [...] read more
flutter
0votes
0answers

Unable to occupy remaining space for TabBarView

I am trying to occupy the remaining blue color part with the column inside TabBarView. For now, I have given a fixed height to the topLeft curve container. And I have used Row widget to get bottom navigation as I have different functionality for it which is just click event. [...] read more
flutter
0votes
0answers

How to calculate width and height of any string properly?

I want to draw perfect border around my text. Problem is that text is rendered a bit too high compared to border. I am using orthographics camera with X facing right and Y facing down. glm code: glm::ortho(0.0f, w, h, 0.0f); To unpack? a font I use freetype. enum { [...] read more
c++
text
2d
rendering
freetype
0votes
0answers

enable dynamic debug message for insmod

I am following instruction in https://www.kernel.org/doc/html/v4.15/admin-guide/dynamic-debug-howto.html#debug-messages-at-module-initialization-time , but I am not able to get the pr_debug printed during module initialization time. module code : https://github.com/linux-kernel-labs/linux/blob/master/tools/labs/templates/kernel_modules/9-dyndbg/dyndbg.c cmd : insmod dyndbg.ko dyndbg=\"func my_debug_func +p\" By adding some debug trace messages, it is due to there is no module information for this newly [...] read more
linux
kernel
insmod
0votes
1answer

Read a packed decimal (Comp-3) number value which is 8 characters; but holds a 13 digit number and convert to 13 digits numeric value

I am seeking code to read a text file which is in packed decimal (Comp -3) numeric value which was created in main frames system and is 8 characters, but holds a 13 digit number in packed decimal format. I came across below code private Decimal Unpack(byte[] inp, int scale) [...] read more
c#
.net
comp-3
packed-decimal
0votes
0answers

Bad detection in edge Detection opencv android

I would make a edge detection app in Android with opencv. But I got bad edge detected photo. Codes : if (extras != null) { String value = extras.getString("key"); Uri uri = Uri.parse(value); Bitmap bitmapOriginal = null; try { bitmapOriginal = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri); } catch (IOException e) { e.printStackTrace(); } [...] read more
android
0votes
1answer

memset large memory region allocated by shm_open/ftruncate/mmap crashes with bus error

I have a demo program which uses shm_open/ftruncate/mmap to allocate memory: #include <unistd.h> #include <sys/stat.h> #include <sys/file.h> #include <sys/mman.h> #include <string.h> #include <errno.h> #include <stdio.h> #include <stdlib.h> void shm_alloc(const char* path, size_t size) { int shmfd = shm_open(path, O_CREAT | O_EXCL | O_TRUNC | O_RDWR, 0666); if (shmfd == -1) [...] read more
c
linux
shared-memory
mmap
0votes
0answers

Image become transparent while rotating on canvas

I'm making an analog clock Live wallpaper. AnalogClock extends Relative layout and later i'm drawing this view on canvas using wallpaper service. All code is working fine but there is some problem when its seconds needle reach at 3 (i.e 180 degree or 15 mins) its transparency becomes zero below [...] read more
android
android-studio
matrix
canvas
viewgroup
0votes
1answer

Weird UC3 Reset behavior after user page NVRAM usage

I recently need to use in build NVRAM/EEPROM of AT32UC3L0256 to store some configuration data. I finally managed to use the user page NVRAM of the MCU (after days of trial and error and cursing on GCC ignoring noinit directives and fixing and workarounding bugs in ASF as usual) to [...] read more
c++
reset
bootloader
avr32
atmel-uc3
0votes
1answer

Converting CIDR notation into IP range without other library

I want to find the IP range from CIDR. For example, I input "192.168.1.1/24". How do I calculate the IP range in Java? I only can change the IP address and subnet mask to byte[]. But I don't know how to merge them. This is my code. String str = [...] read more
java
binary
byte
subnet
0votes
2answers

Can't make Stack of Widgets clickable after exporting Widget from Adobe XD

I want to add one widget I've exported from Adobe XD to ListView.separated and in that widget I want two places to be clickable, however I cannot completely understand where should I put InkWell() or GestureDetector() or maybe another widget to make two places clickable Here is the code: import [...] read more
flutter
dart
0votes
0answers

NodeJS - Visual Studio 2019-app.js exited with code -1

I am new to NodeJs.I begin NodeJs by using Visual Studio 2019 as IDE.When i run the project I endup with message showing that The program 'app.js' has exited with code -1 (0xffffffff). How to fix it? read more
node.js
visual-studio-2019
0votes
0answers

How to draw Canvas Points paths into another Canvas in Android?

What actually I want, whenever I draw or write in 1st canvas then at same time it would be show in 2nd canvas with points not bitmap. The reason is 2nd user will aware with that another one is working on same screen. I have done with store points and [...] read more
java
android
canvas
android-canvas
0votes
0answers

x86 sysenter access violation

I'm trying to use the x86 sysenter instruction however I keep getting this error after the sysenter instruction: Access violation reading location 0xFFFFFFFF. mov edx, ecx pop ecx pop eax mov DWORD PTR [esp], ecx mov eax, [esp + 24] ; id. sysenter ; kernel. sub esp, 8 jmp DWORD [...] read more
assembly
x86
x86-64
masm
0votes
0answers

How to make the code generated by adobe XD to flutter plugin, actually usable & responsive based on screen size?

Recently adobe XD released its new plugin that supports flutter. basically it takes the design and transforms it into actual flutter code. The designer designed it on iphoneX dimensions and the code use absolute positioning according to it. The problem is it doesn't support layout / responsive yet so if [...] read more
flutter
plugins
responsive
adobe-xd
0votes
0answers

I GET ( Index was outside the bounds of the array) ERROR

hey guys Im trying to make a injector but i am getting error namespace AstromyJector { public partial class Form1 : Form { public Form1() { InitializeComponent(); } [DllImport("kernel32")] public static extern IntPtr CreateRemoteThread( IntPtr hProcess, IntPtr lpThreadAttributes, uint dwStackSize, UIntPtr lpStartAddress, // raw Pointer into remote process IntPtr lpParameter, [...] read more
c#
luac
0votes
0answers

qemu-system-arm with sabrelite does not recognize mmc without initrd

I extracted zImage and initrd from the OpenSUSE image for sabrelite and use it to start qemu-system-arm generally successful. But i detect that the initrd execute 2 times, even with the parameter "noinitrd". But without the qemu-system-arm paramater "-initrd initrd" the mmc (sdcard) will not be recognized and it is [...] read more
arm
qemu
initrd
0votes
2answers

Bitwise xor 0xFFFFFFFF?

I couldn't wrap my head around this: def expr(a): return ~(a ^ 0xFFFFFFFF), a ^ 0xFFFFFFFF, ~a, a print(expr(0xFFFFFFFF)) print(expr(1)) print(expr(0)) print(expr(-1)) I understand ~a means two's complement of a, but a ^ 0xFFFFFFFF also flips all the bits, but python will interpret it as a large number. I know [...] read more
python-3.x
bit-manipulation
xor
twos-complement
0votes
1answer

STM32F4 ADC with DMA 7 Channel regular group isn't working

I'm trying to setup my STM32F407-Discovery board to read multiple ADC channels from ADC1 using the DMA controller. It's possible to read one value without using DMA. When DMA is enabled only channel 1 is converted. The other array-elements are filled with 0. Unfortunately I cannot find my mistake because [...] read more
c
stm32
dma
adc
0votes
0answers

Enable wifi wlan adapter Ubuntu 20.04 LTS on Raspberry Pi 3 Model B

I have a Raspberry 3 Model B which has a BCM43438 wireless LAN and Bluetooth Low Energy (BLE) on board and recently installed Ubuntu 20.04 LTS. Thanks in advance for looking and let me know if Ubuntu 20.04 on RPI3 does not support wifi at this time. I've read a [...] read more
raspberry-pi3
ubuntu-20.04
0votes
2answers

How do I compile a wxWidgets Hello World app with CLion and the MSVC compiler toolchain without errors?

I am attempting to compile a basic wxWidgets (wxWidgets version 3.1.3) Hello World app with CLion and the MSVC (Visual Studio 2017 Community edition) compiler toolchain. Using pre-compiled binaries available at https://www.wxwidgets.org/downloads/. See the first Download Windows Binaries button under Latest Development Release: 3.1.3. I am using the 64 bit [...] read more
c++
visual-studio
cmake
wxwidgets
clion
0votes
3answers

System Error Code 0x32 when trying to attach debugger to calc.exe

I am currently learning how debuggers function and I am trying to program one myself following the book 'Gray Hat Python' by Justin Seitz. I am quite new to python and using the Windows API so any help is appreciated. I am using python 2.7 and Windows 10 64bit (in [...] read more
python
ctypes
0votes
1answer

showTimePicker A RenderFlex overflowed by 14 pixels on the bottom when using theme

> Hi, i have an issue with the showTimePicker dialog, the dialog bottom is overflowed by 14 pixels. I think i have done something wrong in ThemeData, when i remove theme the everything works fine. enter image description here [https://i.stack.imgur.com/9vEkll.png] import 'package:flutter/material.dart'; void main() => runApp(new MyApp()); class MyApp extends [...] read more
flutter
0votes
1answer

How to change the colour of the container that wrapped inside tab in flutter

enter image description here [https://i.stack.imgur.com/Myv5a.png] Hi, is there any ways to change the container colour when I switch tab inside a TabBar in flutter? The tabBar did not allow me to put a child inside the tab and return error, hence I wrap a container inside the Tab and used [...] read more
flutter
flutter-layout
0votes
0answers

STM32F1 write/read flash memory, cortex M3

I need to write/read flash memory in my blue pill board (stm32f103c8t6) and I followed this tutorial https://www.youtube.com/watch?v=BKgh896Bj8Q&t=32s but I used Keil uVision 5 IDE and I had this error " #error 167: argument of type "uint32_t" is incompatible with parameter of type "const char *" " Here is the [...] read more
c++
c
stm32
keil
stm32f1
0votes
0answers

Why when I set an OWNER RIGHTS ACE, does it get inheritance flags that I didn't set?

I'm trying to tighten the security on a Windows process, by overriding the process owners ability to further alter the DACL on the process. Having created the process with CreateProcessAsUser() I then proceed to get the existing DACL from it like so: CDacl procDacl; if (AtlGetDacl(hProcess, SE_KERNEL_OBJECT, &procDacl)) { //.. [...] read more
c++
windows
process
permissions
atl
0votes
0answers

How can I display a popup with additional buttons?

I am programming an App that should be used to drive an RC car. It is working mostly, but I have problems with a popup. When I click a Button from the activity_main.xml (popupButton) a popup with three buttons should appear and I want to use onTouchListeners on these buttons. [...] read more
java
android
xml
android-studio
0votes
1answer

OS resets on far jump after disabling paging

I'm working on modifying a routine that switches to and from realmode to perform a BIOS interrupt, but running into issues with paging. I had it working prior with no paging, but now that my OS uses paging, I need to disable it before entering realmode (and enable it after). [...] read more
x86
paging
gas
osdev
intel-syntax
0votes
2answers

Widget not changing on Tap in Flutter

So I am trying to build an Instagram like image editor with all the functionality. I wanted to switch between a text field and a simple Text Widget on tapping on either of them. I found an example online but it does not work in my case. class _StateTextFieldState extends [...] read more
android
flutter
flutter-layout
0votes
2answers

How to pre-define propeties in classes Flutter

I have created a CardText as a stateless widget and I will use it whenever I would be needing it. But I have a problem. As y'all can see, there are properties that I haven't marked as @required. What I want is these properties have a pre-defined value. Like, suppose [...] read more
flutter
0votes
0answers

Add a new interface

I want to add a new interface by NETLINK. Unfortunately I did not find any example. My code always ends with an error. I want to add a simple interface "dummy0" (as $ip link add dummy0 type dummy) void CreateIfc(const char * name) { struct { struct nlmsghdr nh; struct [...] read more
netlink
0votes
0answers

AMD Ryzen 5 3600 + Ubuntu 20.04 problems

I have Ryzen 5 3600, Gigabyte X570 GAMING X and Radeon RX 580 Series. I installed Ubuntu 20.04 and it is loaded with kernel parameter acpi=off but now system recognize only 1 core(lspcu, cut /proc/cpuinfo, nproc). When I remove 'acpi=off' - Ubuntu freezes on login screen. dmidecode -t processor recognize [...] read more
acpi
amd-ryzen
core
0votes
0answers

Can not use full capacity of installed ram

I have Aorus Master X570 with Ryzen 9 3950X and separate graphics card (ASROCK Radeon RX 5500 XT Challenger D 8G in PCIe 4 16x slot) I have installed 4x 32GB DDR4 corsair modules (VENGEANCE RGB PRO 64GB (2 x 32GB) DDR4 DRAM 3000MHz C15 Memory Kit) to it which [...] read more
memory
motherboard
0votes
2answers

Video from vhs via USB capture device on Linux

I want to transfer video from a VHS tape to my computer with Arch Linux, using a USB capture device that comes with Roxio Easy VHS to DVD, which I recently bought. I tried to plug in the device, and it was properly recognized. From /var/log/messages.log, em28xx #0: Identified as [...] read more
linux
video
video-capture
0votes
3answers

Disable/pause AHK script while game is minimized

I have an AHK script that allows me to bind joystick presses to keystrokes. These keystrokes are used to trigger functions in a trainer that runs in the background while I play a game. The script works fine, but the problem is that the joystick bindings send unwanted input to [...] read more
script
autohotkey
0votes
0answers

Linux booting stop at Starting kernel when using Yocto build image with SD card

I'm tring to porting linux on imx6 PDK B/D(imx6-qaudplus-sabreauto) with Yocto build image. my customize sdcard image (mixed imx6/8)= * u-boot.bin(iMX6 Yocto bitbake result) * zImage(iMX6 Yocto bitbake result) * .dtb file(iMX6 Yocto bitbake result) * rootfs(iMX8 Yocto bitbake result) but stop at Starting kernel... and no more console printed. [...] read more
linux
boot
0votes
0answers

I got a SIGILL and JVM crashed when I booted a java application with --agentpath:libxxx.so on AIX 7.1

My dynamic shared library complied with CPPFlAGS: -q64 -G. The compiler version is IBM XL C/C++ for AIX, V11.1 (5724-X13) Version: 11.01.0000.0024 when it was started, then crashed, here is part of information in hs_err*.log. It seems that this error occurred by dlopen # # A fatal error has been [...] read more
crash
aix
jvm
0votes
0answers

Linux-Yocto, ARM: VFS: Cannot open root device "ubi0:root" or unknown-block(0,0):

I'm booting from NAND zImage and rootfs (UBIFS) to the ARM board (yocto-project building). global.bootm.image="/dev/nand0.root.ubi.kernel" global.bootm.oftree="/dev/nand0.root.ubi.oftree" global.linux.bootargs.dyn.root="root=ubi0:root ubi.mtd=root rootfstype=ubifs" The process is just erase, format UBI volume and write UBIFS. ubiformat /dev/nand0.root ubiattach /dev/nand0.root ubimkvol -t static /dev/nand0.root.ubi kernel 8M ubimkvol -t static /dev/nand0.root.ubi oftree 1M ubimkvol -t dynamic /dev/nand0.root.ubi [...] read more
linux
partitioning
root
yocto-project
0votes
0answers

debugging boltd and Dell TB16 on Dell Latitude 5491 and Xubuntu 18.04

Every now and then my Dell TB16 dock device stops working i.e. port replication is off, also the dock's white LED goes off. * OS: Xubuntu 18.04.2 LTS * Kernel: 4.15.0-54-generic #58 * System: Dell Latitude 5491 BIOS 1.8.1 05/23/2019 I've installed the thunderbolt daemon boltd but the boltctl command [...] read more
dell-latitude
xubuntu
docking-station
thunderbolt
0votes
2answers

Virtual machine has terminated unexpectedly during startup with exit code -1073741819 (0xc0000005)

I have installed VB on a new machine running Windows 10 Pro 1803 (build 17134.556) and running any machine instance always fails with this error: The virtual machine 'linux' has terminated unexpectedly during startup with exit code -1073741819 (0xc0000005). More details may be available in 'C:\Users\osama.shabrez\VirtualBox VMs\linux\Logs\VBoxHardening.log'. Result Code: E_FAIL [...] read more
virtualbox
0votes
2answers

External SSD Drive won't mount on OSX

A colleague at work has a Kingston 240GB SSD drive which has come out of a now dead computer. We want to be able to recover some data from it (no backups sadly) however the drive won't mount properly. I am using an Anker USB3 external HDD enclosure which I [...] read more
macos
hard-drive
ssd
external-hard-drive
data-recovery
0votes
1answer

UBI layout volume not found

I am following Bootlin's embedded Linux training which aims to put an embedded Linux system on an Atmel SAMA5D4 Xplained board (theory slides, practical lab instructions) and I am stuck a putting the whole system on the NAND flash. They ask me to put the DTB, the kernel, the root [...] read more
linux
embedded-linux
0votes
1answer

Why isn't my forced MAC address change working (Raspberry Pi)?

I'm working with Raspberry Pi Zeros on a subnet. I bought external Ethernet adapters for each one to connect them to one another. Unfortunately, these ethernet adapters all came with the exact same MAC addresses, making communication between the Pis near impossible. Because of that I've tried forcing a change [...] read more
linux
networking
raspberry-pi
subnet
0votes
0answers

System hang and black screen BugCheckCode 278 and BugCheckCode 0

For past two days the system would hang up or enter black screen and won't restart right away (after pressing restart button) but at one instant it generated Blue Screen (BugCheck Code 278). This issue has been occurring only during gaming(for one game during loading screen for other mid game [...] read more
windows-7
freeze
bsod
crash
0votes
1answer

Dell desktop falls asleep in a couple minutes, ignores power/screen saver settings

My parents' Dell Inspiron tower goes to sleep within ~3 minutes of inactivity, despite every power setting in Windows (screen saver, turn off screen, go to sleep, turn off hard-disk, etc.) either turned off or set to 60 minutes. This answer claims that Dell has been known to bundle their [...] read more
windows-10
sleep
power-management
dell-inspiron
0votes
0answers

Windows 10 Explorer crashes when opening "new" context menu, need help deciphering dump file

As the title says, whenever I attempt to open the "new" sub-menu of the right click context menu in Windows 10 explorer locks up and then crashes a few moments later. This issue only appeared in the last couple days and I suspect it is a result of the Creator's [...] read more
windows
windows-explorer
windows-update
context-menu
0votes
1answer

Two openvpn connections: one with redirect-gateway and a second one for private network

I have a personal VPN that I use as a default gateway for all Internet traffic when I'm on the road. This works great and I have no problem. I also have a work VPN, which I need to connect to reach machines on their private network. What I want [...] read more
networking
routing
openvpn
0votes
0answers

different speed ssd partitions

I have Samsung NVMe SSD 960EVO 250GB disk and it gives me some weird result when testing read speed using hdparm -tT. Speeds before trim /dev/nvme0n1: Timing cached reads: 24486 MB in 2.00 seconds = 12256.70 MB/sec Timing buffered disk reads: 5502 MB in 3.00 seconds = 1832.95 MB/sec jkalmar@supercomp:~> [...] read more
linux
ssd
performance
opensuse
0votes
0answers

Kworker thread has high CPU usage

I have a kworker thread with high cpu usage, which is causing my touchscreen to be very lag-y and unresponsive. Running a beaglebone with Debian. uname -r 4.1.15-ti-rt-r43 pid user pr ni virt res shr s %cpu %mem time+ command 90 root 20 0 0 0 0 R 34.7 0.0 [...] read more
linux
cpu
kernel
linux-kernel
threads
0votes
1answer

HP Proliant getting down with Critical error LED Blinking - what then?

After a few hours of correctling working, our proliant Server stop calculus with the System Healt LED 12 blinking, which according to the documentation ( http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c01706108-8.pdf ) is the sign of a "Critical system failure detected (processor, memory, regulator, thermal event, fan, NMI)" (page 96). SSH is then lost. We [...] read more
linux
ubuntu
memory
0votes
0answers

PPTP error 619 when accessed externally

I set up a PPTPD server on Arch Linux. If I connect to the VPN using the server's local IP (192.168.1.107), it works, but if I connect to the VPN using the external IP address, then the client results in error 619. Any help would be greatly appreciated! Output of [...] read more
linux
networking
vpn
arch-linux
pptp
0votes
2answers

Postfix SMTP SSL config: Can't send email but can receive it with SSL

I am trying to finish configuring my postfix/dovecot mail server that sits behind my home's router/firewall. I'm on Mint/Ubuntu 12.04. I'm close. I can connect/retrieve emails via SSL but can only send email from a client when not using SSL, just username/password. If I attempt an SSL connection with the [...] read more
email
ubuntu-12.04
ssl
postfix
dovecot
0votes
1answer

Recieved BSOD after restart

When i start my laptop i get this error "DPC_WATCHDOG_VIOLATION" i really donyt know what is the issue... can some one help.... -------------------------------------------------------------------------------- DUMP FILE Microsoft (R) Windows Debugger Version 6.3.9600.17336 AMD64 Copyright (c) Microsoft Corporation. All rights reserved. Loading Dump File [I:\121115-55411-01.dmp] Mini Kernel Dump File: Only registers and [...] read more
windows-8
bsod
0votes
2answers

Windows 8.1 dual-boot with openSUSE boot failure

I already have Windows 8.1 on my newly built PC and wanted to dual-boot with openSUSE. I wrote the install image to a USB, but the install kept hanging so I used network install (also written to a bootable USB). Before install I created a separate 100 GB partition on [...] read more
linux
boot
windows-8.1
partitioning
opensuse
0votes
0answers

Suspend does not work on Debian Jessie

Today I observed that suspend sometimes does not work properly in freshly installed Debian Jessie. After executing suspend (Alt + Shut Down button) the following message appears on black screen: Loading, please wait... The syslog is as follows. I kindly as for any suggestions. Jul 12 18:53:10 svarog kernel: [ [...] read more
linux
debian
suspend
0votes
0answers

pm-hibernate does not turn off system

I'm trying to make pm-hibernate to work on my Ubuntu 14.04 system. When I invoke sudo pm-hibernate display turns off and I can't do anything anymore but computer does not turn off. All I have found in logs is: Mar 17 21:40:25 dmitry-pc kernel: [ 0.000000] PM: Registered nosave memory: [...] read more
linux
ubuntu
hibernate
ubuntu-14.04
0votes
1answer

Mono is crashing on MAC OS X with Keepass 2.23

Mono is crashing on MAC OS X (10.8.4) with Keepass 2.23 while accessing password database. Using keepasshttp with firefox. Any workaround for this ? =========================================================== Process: mono-sgen [7586] Path: /usr/bin/mono Identifier: mono-sgen Version: ??? Code Type: X86 (Native) Parent Process: bash [7194] User ID: 501 Date/Time: 2013-08-15 13:34:28.515 +0530 OS [...] read more
macos
keepass
mono-framework
0votes
2answers

Why can't I connect to an AFP server over VPN on OS X 10.8

I have set up a VPN connection on my MacBook Pro OS X 10.8.5 laptop, to my office network so I can access my AFP file server from home. The VPN connection appears to be working correctly. The Status reads Connected and I am getting both a connect time and [...] read more
macos
networking
mac
vpn
afp
0votes
1answer

Bluetooth / Bluez: No reply to ping over bnepX interface

I have trialed to use Network, NAP profiles on Bluetooth. On Host, xUbuntu 13.04 I have followed as here. This Host or XUbuntu machine is behind proxy & runs on virtual machine. It is installed with Bluetooth version 4.101 On embedded board, ping 173.194.112.211 responds as below: PING 173.194.112.211 (173.194.112.211) [...] read more
linux
networking
wireless-networking
bluetooth
0votes
0answers

command to write to physicaldrive?

I have a bat file that we use to write meaningless data to a harddisk. But I dont know what exactly it means... Here is the command: dtlite2 of=\\.\physicaldrive1 bs=256k limit=200m passes=1000 disable=cache pat_part1=0xffffffff pat_part2=0xffffffff pat_part3=0x0 pat_part4=0x0 dlimit=2048 platform is windows. This is run from a bat file. read more
windows
hard-drive
writing
0votes
1answer

Laptop computer grahpic opens and loads slowly

So i have this laptop whenever i open a folder, close a folder, or do anything graphical it runs slowly. and when i say slow i mean you can actually SEE in slowmo the animation running. Say for instance you want to open a folder. you can see the full [...] read more
windows-7
graphics-card
graphics
0votes
2answers

Wine crashes when trying to run portable version of Firefox

I think there is something wrong with my Wine setup, but I don't know how to fix it or even what it is. Others have gotten this program to work without problems in Wine. This is the console output that I get from Wine before it crashes. > fixme:system:SetProcessDPIAware stub! [...] read more
linux
ubuntu
firefox
ubuntu-10.04
wine
0votes
1answer

OSX Panic about once a week

I am running OSX 10.6.6 and I this is the second kernel panic in 2 weeks. Here is the log that gets sent to Apple. Help! Model Name: MacBook Pro Model Identifier: MacBookPro6,2 Processor Name: Intel Core i7 Processor Speed: 2.66 GHz Number Of Processors: 1 Total Number Of Cores: [...] read more
macos
kernel-panic
0votes
1answer

xorg.conf: Why does this have no effect?

Here is my xorg.conf file. The problem is that my resolution setting 1600x900 is getting ignored. The resolution keeps popping to 1280x1024 Edit The resolution comes up as 640x480 after unplugging the physical monitor. When my file gets ignored, the system seems to read my monitor to find it's capabilities [...] read more
resolution
xorg.conf
solaris-10
-1votes
0answers

I have displayed the code below, but when I try to execute it, get:

OUTPUT: OpenCV: FFMPEG: tag 0xffffffff/' ' is not found (format 'avi / AVI (Audio Video Interleaved)')' Traceback (most recent call last): File "aa.py", line 125, in <module> cv2.putText(frame, str(x)+","+str(y),(x_centre,y_centre), cv2.FONT_HERSHEY_SIMPLEX,0.5, (255,255,255), 1, cv2.LINE_AA) TypeError: integer argument expected, got float CODE: import cv2 import numpy as np from matplotlib import pyplot [...] read more
python
opencv
machine-learning
computer-vision
-1votes
1answer

Flutter apk-release shows black and grey screen

Well I developed an app with flutter, and it looks great and stuff.. Yesterday I built the apk file and it worked great (except another problem I had but it's probably fixed). I remember I changed the code a bit but it still works on my emulator perfectly. Now all [...] read more
flutter
apk
-1votes
4answers

Flutter The method '[]' was called on null

I am running my app and getting the error: "NoSuchMethodError: The Method '[ ]' was called on null. Receiver: null. Tried calling: ." import 'dart:async'; import 'dart:convert'; import 'package:flutter/material.dart'; import '../model/Lesson.dart'; class MobileModeScreen extends StatefulWidget { @override _MobileModeScreenState createState() => _MobileModeScreenState(); } class _MobileModeScreenState extends State<MobileModeScreen> { List<Lesson> _lesson; @override [...] read more
flutter
dart
-1votes
0answers

Is there anyway to have holding down different buttons on a IR remote do different things?

I am new to arduino programming, so please do not just outright give the solution to me, I would like to learn a little as well. I know that holding down a button on my IR remote sends the code 0xFFFFFFFF. The only thing is that this is for holding [...] read more
arduino
infrared
-1votes
2answers

How to make an arbitrary Microsoft FILETIME?

I would like to make an arbitrary Microsoft FILETIME. The algorithm is more important than the Microsoft programming language. For example if today is June 2 2016, I would like to calculate the FILETIME at midnight June 2016. Any help is greatly appreciated. [EDIT June 2 2016 5:09 P.M Here [...] read more
windows-7
date-time
algorithm
-2votes
0answers

Find the max id available in Python

I have written a code to find the max free id in Python. However, when I try to print the max value, it returns Memory Error. Additionally, I cannot stay at the interpreter with python -i test.py as it will return a lot of Memory Error warnings and exit. Here [...] read more
python
-2votes
1answer

Console bugging and bugged, evidently

It appears that a false file path has been installed on a home computer many of us use, that reroutes my emails from gmail, to an Entourage mail app that I do not use, and from my dock have no access to…. My question is, is this even possible, and [...] read more
macos
-3votes
0answers

what is vulnerable in this password checking C code?

int main(int param_1,char *param_2) { __uid_t _Var1; uint uVar2; uint uVar3; uint uVar4; __pid_t __pid; __pid_t __pid_00; if (param_1 != 2) { FUN_00100f72(*(undefined8 *)param_2); } _Var1 = geteuid(); if (_Var1 != 0) { fwrite("this program must run as root\n",1,0x1e,stderr); /* WARNING: Subroutine does not return */ exit(1); } uVar2 = [...] read more
c
assembly
reverse-engineering
-4votes
1answer

is there any web crawler can get access to users region for download?

Actually I am using Httrack as a web crawler, can it use my credentials to access members area and download the zip files because they are restricted from public access. Thank you in advance. Update: After all the problem was with my IPV6 it must be disabled; with (Windows 8 [...] read more
web-crawler

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