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

42votes
17answers

How to do unsigned saturating addition in C?

What is the best (cleanest, most efficient) way to write saturating addition in C? The function or macro should add two unsigned inputs (need both 16- and 32-bit versions) and return all-bits-one (0xFFFF or 0xFFFFFFFF) if the sum overflows. Target is x86 and ARM using gcc (4.1.2) and Visual Studio [...] read more
c
algorithm
performance
signal-processing
saturation-arithmetic
32votes
8answers

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
30votes
9answers

Remove padding in Flutter Container > FlatButton

I am looking to remove the default margin of the FlatButton but can't seem to set/override it. buttons with padding [https://i.stack.imgur.com/auKR7.png] Column(children: <Widget>[ Container( children: [ FractionallySizedBox( widthFactor: 0.6, child: FlatButton( color: Color(0xFF00A0BE), textColor: Color(0xFFFFFFFF), child: Text('LOGIN', style: TextStyle(letterSpacing: 4.0)), shape: RoundedRectangleBorder(side: BorderSide.none)))), Container( margin: const EdgeInsets.only(top: 0.0), child: FractionallySizedBox( [...] read more
flutter
20votes
6answers

Integer cube root

I'm looking for fast code for 64-bit (unsigned) cube roots. (I'm using C and compiling with gcc, but I imagine most of the work required will be language- and compiler-agnostic.) I will denote by ulong a 64-bit unisgned integer. Given an input n I require the (integral) return value r [...] read more
c
optimization
math
gcc
numerical-analysis
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
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
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
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
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

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
2answers

Flutter: exception when having 2 FloatingActionButton

I receive an exception at first time the page is built, when this build involves 2 FloatingActionButton. However, if I comment out one of the 2 FloatingActionButton, run the app and at a later stage, I uncomment and proceed with a Hot Reload, it works. The following piece of code [...] read more
exception
flutter
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
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
1answer

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
4votes
1answer

Convert __m256i register to uint64_t bitmask such that that value at each byte's value is a set bit in the output

Basically I have an __m256i variable where each byte represents a position that needs to be set in a uint64_t. Note all byte values will be < 64. I'm at somewhat of a loss for how to do this even remotely efficiently. One option I was considering is in certain [...] read more
c++
simd
avx
micro-optimization
avx2
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
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
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
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
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
4answers

How to use motion layout with recyclerview

trying to use MotionLayout with RecyclerView, when scrolling up, app is crashing with error: > android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff fragment layout code is <android.support.constraint.motion.MotionLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" app:layoutDescription="@xml/collapsing_config_order_details" android:layout_width="match_parent" android:layout_height="match_parent"> ... <android.support.v7.widget.CardView android:id="@+id/cardView" android:layout_width="0dp" android:layout_height="wrap_content" android:layout_marginTop="8dp" app:layout_constraintEnd_toEndOf="@+id/tv_delivery_type" app:layout_constraintStart_toStartOf="@+id/imageView15" app:layout_constraintTop_toBottomOf="@+id/view4"> ... </android.support.v7.widget.CardView> <android.support.v7.widget.RecyclerView android:id="@+id/rv_list" android:layout_width="0dp" android:layout_height="0dp" android:layout_marginBottom="8dp" android:layout_marginTop="8dp" [...] read more
android
android-recyclerview
scroll
swipe
android-motionlayout
3votes
4answers

Android EditTextPreference dialog style/theme

I'm trying to style the dialog box that appears when I select an EditTextPreference in my SettingsActivity. So far I have been able to change the colour of the two buttons and the background with: dialog.getButton(DialogInterface.BUTTON_NEGATIVE).setTextColor(0xffffffff); dialog.getButton(DialogInterface.BUTTON_POSITIVE).setTextColor(0xffffffff); dialog.getWindow().setBackgroundDrawableResource(R.drawable.blue_background); But I am so far unable to change the title at the [...] read more
android
colors
dialog
styles
preferences
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
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
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
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
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
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
0answers

Can not run EXCEL.EXE as other user after Windows 2004 update

I need to run EXCEL.EXE with a user different than current one; in the past I do this without any issues, but after updating the system to Windows 10 Pro version 2004 (19041.508) this method is not working anymore. I was using the following class (thanks to Impersonate user in [...] read more
c#
windows
powershell
office365
impersonation
2votes
1answer

How to delete oldest file from SD card with SdFat

I'm trying to delete the oldest file from an sd card with SdFat with no success I've found that function on Arduino forumsHere void deleteOldestFile(){ SdFile dirFile; SdFile file; SdFile oldestFile; dir_t dir; uint32_t oldestModified = 0xFFFFFFFF; uint32_t lastModified; if (!dirFile.open("/", O_READ)) { sd.errorHalt("open root failed"); } while (file.openNext(&dirFile, O_WRITE)) [...] read more
arduino
sd-card
arduino-c++
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
0answers

Error running 01 46, response: ...UNABLETOCONNECT

Getting the data from OBD II simulator to android application via Bluetooth successfully. Now I am trying get the data from ELM327 device to android application. I have an ELM327 device connected to my Car. Bluetooth connection happens by ECU connection fails with unable to connect error. getting below error, [...] read more
android
bluetooth
torque
baud-rate
elm327
2votes
0answers

Different navhost fragment for every activity

Im building an app with conditional navigation based on the values of the login token received. So I have three different landing pages for my app based on three diffrent values i revceive after decoding the token. So Iam using three different activties each with its own set of Navigation [...] read more
java
android
android-architecture-navigation
2votes
0answers

How to Efficiently Find a Neighbor Point in a List?

I have a large list of Points in an Image and I want to find the Point Nearest to a given Point. Existing Approach Tried:Divide the Image into Tiles and search only within the Region of Interest by building a Table. The light blue cloured one are the points I'm [...] read more
c++
c
algorithm
opencv
nearest-neighbor
2votes
2answers

Does JMeter fully support NTLM Authentication?

I am struggling to make JMeter to work with NTLM authentication. At the beginning I was provided with an URL and credential. When I tested the credential in Firefox and in Chrome I received the authentication popup and upon providing the credential I was authenticated. So I had created a [...] read more
java
jmeter
apache-httpclient-4.x
ntlm
apache-commons-httpclient
2votes
0answers

Identity login function stopped working Blazor Wasm Asp.net core hosted

I've been playing with a blazor wasm asp.net core hosted project for a few weeks now, yesterday I added a few controllers on the server side and everything was working fine (Also logging in).. Came back today and identity server just stopped logging in?? I can reach the api (and [...] read more
identityserver4
asp.net-core-3.1
blazor-webassembly
2votes
1answer

Vega 56 Bandwidth Slow in (not only) TensowFlow - Why and how?

I just built a new AMD-based PC, with CPU - AMD Ryzen 7 3700X, GPU - AMD Radeon RX Vega 56, OS - Ubuntu 18.04. In order to use AMD GPU for Tensorflow, I follow these two to install ROCm. Everything seems fine and no problems in installation. I think [...] read more
tensorflow
gpu
amd
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
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
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
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

How to modify crc-32 to crc-32/mpeg-2

I am trying to code a function to match CRC 32 output from a device to the actual CRC-32 sum that I calculate. Following is my code: #include <iostream> #include <string.h> #define CRC32_POLYNOMIAL 0xEDB88320 using namespace std; unsigned int crc32b(unsigned char *message,size_t l) { int i, j; unsigned int byte, [...] read more
c++
checksum
crc
crc32
1vote
1answer

How can i access depth texture with ImageLoad()?

I need to read depth texture data in OpenGL Compute shader. this is texture intialize code. glActiveTexture(GL_TEXTURE4); glGenTextures(1, &(framebufferDesc->m_DepthTextureId)); glBindTexture(GL_TEXTURE_2D, framebufferDesc->m_DepthTextureId); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); glTexImage2D( GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, renderWidth, renderHeight, 0, GL_DEPTH_COMPONENT, GL_UNSIGNED_BYTE, nullptr); my goal is find 'maximum' depth. 1.0 [...] read more
opengl
glsl
1vote
0answers

OSDev. PS/2 Mouse not working. IRQ 12 doesn't fire when mouse is moved

I am writing an OS. I have written "some" keyboard drivers and I wanted make a little mouse support, maybe a cursor. I read several guides on ps/2 mouse especially on osdev wiki and copied a bunch of code from Sanik's to start. ( https://forum.osdev.org/viewtopic.php?t=10247) However I cannot get the [...] read more
c
osdev
1vote
1answer

Dafny handling bit vectors

* I'm trying to use Dafny with (unsigned) bitvectors (following this post). * The following simplified example (permalink) works fine, but when I change to bv32, I get: * Unexpected prover response: timeout * Is it a bug? or an expected performance gap between the two? * Here is the [...] read more
dafny
bitvector
1vote
3answers

Drawing and filling a Circle

I just started with SDL in c++ and VS 2013 Community. I want to draw a circle and so i searched on Google and found http://content.gpwiki.org/index.php/SDL:Tutorials:Drawing_and_Filling_Circles. But as I tried to implement it in a seperate fill_circle.cpp file, include this in my main.cpp and call the function, I get the [...] read more
c++
drawing
sdl
geometry
1vote
4answers

1 event for multiple buttons

I have an event listener that listens only to 1 button (which is Button hello = view.findViewById(R.id.hello)). @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Inflate the layout for this fragment View view = inflater.inflate(R.layout.fragment_general, container, false); Button hello = view.findViewById(R.id.hello); // Text to speech tts = [...] read more
java
android
android-studio
1vote
3answers

Invert certain colors in a bitmap (Android)

and welcome to my very first question on stackoverflow.com :) I'm trying to invert specific colors of a Bitmap in Android app. the idea is to have a night mode reading for kids story. the story pages are colorful, including the text.. when I load the image in the normal [...] read more
android
colors
invert
1vote
0answers

Sizing images in a vertical pageview without compromising the space between each element?

Hello all I am having an issue with resizing an animated container in a pageview. If i resize the image I lose the amount of space in between and if I right a conditional statement to check if the container is an activePage if not higher the other container but [...] read more
flutter
spacing
sizing
flutter-pageview
animatedcontainer
1vote
1answer

App crashes on adding second navHostFragment

Due to a condition, I need two navHostFragment in two different activities in my app. Everything works fine until I add a second navhostframent in my app, which creates an inflateexception with error: Binary XML file line #36: Duplicate id 0x7f09018a, tag null, or parent id 0xffffffff with another fragment [...] read more
java
android
android-layout
kotlin
android-fragments
1vote
1answer

Flutter: getting ListView in animated, positioned container being part of a stack

Maybe one of you already came across these problems. I spent numerous hours with trying to get the ListView (I also tried ExpansionPanelList) into a container that pans from the right edge into the screen (help menu) over the existing widgets. I have already created a mock-up starting with a [...] read more
flutter
listview
animation
stack
1vote
1answer

libigl, GLEW, GLFW, and Eigen on CLion, Windows 10. Linker Errors

I'm sure I'm missing something trivial, but I can't put my finger on what. I'm building a project with four external libraries using CLion. I'm trying to link Eigen, GLEW, GLFW, and libigl. I'm using the VC++ compiler in VS 2015. This is one iteration of my cmake file: cmake_minimum_required(VERSION [...] read more
c++
cmake
clion
glew
libigl
1vote
2answers

How to save base64 Android to MySQL database?

I am sending an image to laravel API using retrofit D/NetworkManagementSocketTagger: tagSocket(74) with statsTag=0xffffffff, statsUid=-1 I/mple1.messegin: Background concurrent copying GC freed 21904(27MB) AllocSpace objects, 14(3MB) LOS objects, 50% free, 18MB/37MB, paused 402us total 102.147ms E/FF1: 500 Response{protocol=http/1.1, code=500, message=Internal Server Error, url=http://192.168.1.8/company_messenger/public/apistore} I see the first line then after a [...] read more
android
mysql
laravel
base64
1vote
1answer

Flutter: The value passed in parameter is null on the second page the first time

Flutter: The value passed in parameter is null on the second page the first time. if I do a hot reload, this value is not null. maybe it's because of the TabBar but how do you get the real value for the first time while using TabBar? Please help me [...] read more
flutter
dart
flutter-futurebuilder
1vote
0answers

NtQuerySystemInformationEx in 64bit

Using the NtQuerySystemInformationEx() API, I made a DLL that hides the Notepad process in 64bit. But in 64bit, when I inject this DLL, nothing happens. But the DLL injector does not have a problem. Because other 64bit DLLs are injected ok. What's the problem? I am trying to inject this [...] read more
c++
api
windows-10
64-bit
1vote
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
1vote
1answer

Flutter Silver widget showing A RenderViewport expected a child of type RenderSliver but received a child of type RenderErrorBox

Flutter I am using Silver Widget to show the list but its showing error A RenderViewport expected a child of type RenderSliver but received a child of type RenderErrorBox I think some issue is in Silver Widget or when I call the widget in builder ? My code class _EventsState [...] read more
flutter
dart
1vote
1answer

Flutter sowing error when using listbuilder in future builder

I am using ListBuilder in Future builder passing the snapshot data in a class and with help of listBuilder showing it in a form of list all things are working perfectly but in end of list its showing the error also showing error in UI My code Widget build(BuildContext context) [...] read more
flutter
dart
1vote
4answers

Use of Xil_Out32 in Xilinx SDK

In Vivado I succesfully made a simple blockdiagram to control the LEDs of my Zybo board. I can observe that the offset address for my LEDs is: 0x4120 0000 and the High Address is 0x4120 FFFF. Now when I go to the SDK: #include <xil_printf.h> #include <xil_types.h> #include "platform.h" #include [...] read more
fpga
xilinx
zynq
vivado
1vote
2answers

How the value of type "i32" is evaluated in WebAssembly?

As per the text from spec as below: > Note that the value types i32 and i64 are not inherently signed or unsigned. The interpretation of these types is determined by individual operators. Since we do not know the signedness of the passing parameter of type i32, so how does [...] read more
webassembly
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
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
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
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
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

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
0answers

Make Headless Server Use Hardware Accelaration

I have a headless CentOS 8 Server with an AMD GPU. I want to use hardware acceleration but when I run OpenGL programs with xvfb-run (e.g glxinfo), the system reports I am using software rendering. How can I use hardware acceleration on a headless server? Note that even though output [...] read more
linux
graphics-card
centos
opengl
headless
1vote
1answer

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
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
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
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
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
1vote
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
0votes
1answer

Specify number size in gdb for print commands?

To play around with various additions to registers that may be 8,4,2 or 1 bytes (rax, eax, ax, al) is there a way I can specify the number of bytes of the number I'm using? For example # works for 4 bytes >>> p/x -1 $30 = 0xffffffff >>> p/x [...] read more
c
gdb
0votes
1answer

Porting Python2 script to Python3 - struct Libary

im working ona socks5 proxy server and now im implementing a ICMP tunneling method to to tunnel SSH traffic through the ICMP protocol to bypass firewall restrictions. Thats the open source i used: https://github.com/sanecz/pingtunnel def create(self): pack_str = "!BBHHH4sH" pack_args = [self.type, self.code, 0, self.id, self.sequence, socket.inet_aton(self.dest[0]), self.dest[1]] if self.length: [...] read more
python
python-3.x
python-2.7
porting
0votes
0answers

Bootloader Set Up for TFTP and NFS; Diskless Boot Up from Amazon EC2

Currently, I have successfully boot up my wandboard with TFTP for kernel and NFS for rootfs locally. Still, I want to achieve on booting it over the cloud set up in Amazon EC2. The machine could get the kernel files and boot up fine. However, it still could not mount [...] read more
amazon-ec2
embedded-linux
bootloader
nfs
tftp
0votes
0answers

detect a change of data fetched from an api and push the the screen if it is done

hello everybody i'm working at driver food application and all i want do it's pushing the order_pending.dart (screen to accept the order ) when the driver received a new order. NB: i want to push the page even that the application has closed its like messenger when you receive a [...] read more
flutter
dart
0votes
0answers

Signature/AoB Scanning for every occurence in process memory

I want to find every occurence of a array of byte and save the pointers to a array, problem is the AoB's aren't in a module but in a allocated memory and I have no idea how to do that I was following this tutorial https://www.youtube.com/watch?v=jLfPdujSuRAand got the updated source [...] read more
c++
memory
signature
0votes
2answers

Strange Characters when printing a string in x86 assembly language?

My code is required to have a string that will be printed to the console, alongside a string length counting program that will count it instead of manually putting length of string in edx register. But i am getting strange characters printed right after the string is printed. global _start [...] read more
string
assembly
x86
0votes
0answers

Firebase Installations can not communicate with Firebase server APIs due to invalid configuration

I have a problem in the register page, the program is running normally but unable to communicate with firebase whatever i do. I have my API key, Project ID and App ID all double checked on both firebase and my json file and they are the same but still not [...] read more
java
android
firebase
0votes
1answer

How do I use Zlib with concatenated .gz files in winAPI?

I am downloading common crawl files from AWS. Apparently, they are large concatenated .gz files, which is supported by the gzip standard. I am using zlib to deflate but I only get the decompressed contents of the file up to the first concatenation. I have tried adding inflateReset() but then [...] read more
c++
winapi
gzip
zlib
0votes
1answer

Small Lookup Table for Large Integers

I want to make a quick, relatively small lookup table, but with a large input range: -Input: 32bit Value max. (a 32bit color value) -Output: 8bit Index max. (index to a table) Something like the code below. (If more than 256 values are indexed, the index is just going to [...] read more
c
performance
lookup-tables
0votes
1answer

How to retrieve data from Cloud Firestore (a DateTime Field and an array of strings field) using Flutter and then display this data on a chart

I am using Cloud Firestore as a database for my app which is being created using Flutter. I am trying to get 2 fields, one that is a DateTime and one that is an array of strings. However, I can't seem to figure out how to retrieve data from Firestore [...] read more
flutter
dart
charts
google-cloud-firestore
0votes
0answers

How are the members of Process Environment Block Initialized?

I'm looking to learn how the NLS data of a process is initialized in the PEB structure. Specifically the members AnsiCodePageData, OemCodePageData and UnicodeCaseTableData. I suspect that the CmpFindNlsData of Winload is responsible for populating these but I'm missing the link from initializing strings in CmpFindNlsData to populating them in [...] read more
windows
process
0votes
0answers

Try to connect androidTV via SSH

I have some problems with SSH connection, I've started the SSH server on my androidTV(it's root), and I've seen connection, but commands didn't run on the device. I'm trying to run vlc-stream on androidTVs. If I use putty for connection, I have no problem, but my program not working. I`m [...] read more
java
ssh
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
1answer

Does this func produce a 64 bit or signed 32 bit integer?

I collected funcs searching for conversion from integer to binary with different sizes, and re-visiting the code I'm thinking maybe what I recorded as 64 bit integer was actually signed 32 bit? const readInt64 = (b) => { return parseInt(b.toString('hex'), 16) } const setInt64 = (int64) => { const b [...] read more
javascript
node.js
0votes
0answers

Getting a FileInputStream to work reading in a WAV file in Android Studio project

I have a separate class in an Android Studio project that analyzes WAV files. I debugged the file originally in Eclipse and now have loaded it into Studio. Unsurprisingly, I'm having trouble reading in a WAV file in my project. First, this is the location of the WAV file in [...] read more
java
android
android-studio
fileinputstream
0votes
0answers

Problem with notifications not showing in android 10 java

Problem with notifications not showing in android 10 java.. Private code android studio, Notifications work in Android on all releases, repeating 10, In the problem, I want to change this code to work callingUid=10339, userId=0, incomingUserId=0, notificationUid=10339, notification=Notification(channel=null pri=0 contentView=null vibrate=default sound=default tick defaults=0xffffffff flags=0x11 color=0x00000000 actions=2 vis=PRIVATE) public class [...] read more
java
android
0votes
0answers

Renderflex object was given an infinite size during layout - flutter error

I wanted to make a SingleChileScrollView with extra height. I wrote a code and earlier if was working but now I see a renderflex object error. It was working one time and suddenly I see this error. Can someone have a look at it and help? The below is the [...] read more
flutter
dart
singlechildscrollview
0votes
0answers

How to resolve [ERRCODE: SC_ERR_NFQ_CREATE_QUEUE(72)] - nfq_create_queue failed at IPS Suricata

I have Suricata 5.0.3 and I need to enable IPS mode. At first, I try with NFQ example. iptables command: iptables -t mangle -I PREROUTING -p tcp -m tcp --dport 80 -m mark ! --mark 0x1/0x1 -j NFQUEUE --queue-num 0 suricata.yaml: default-rule-path: /etc/suricata rule-files: - test.rules nfq: mode: repeat repeat-mark: [...] read more
iptables
suricata
0votes
0answers

VFS: Cannot open root device "mmcblk0p2" or unknown-block(179,2): error -2

What I am trying to do is to have a working Linux kernel with rootfs running on STM32F769I discovery board. I built the u-boot, kernel and device tree for it using Buildroot, it has been an uphill struggle for me because I am a beginner with embedded systems. I have [...] read more
linux-kernel
embedded-linux
boot
sd-card
mmc
0votes
1answer

Protostar Stack 0 Challenge: How to find out the buffer size from assembly code?

I've been trying protostar stack0 challenge and wondering how to find out the buffer size if we don't have the source code. The original site (http://exploit-exercises.com/protostar) is no longer available, however you can still download the copy of ISO at https://download.vulnhub.com/exploitexercises/exploit-exercises-protostar-2.iso Here is the assembly code (gdb) disassemble main Dump [...] read more
c
assembly
0votes
3answers

How to increase the size of SingleChildScrollView in flutter?

I am making an app in which one of the pages is scrollable. I used a SingleChildScrollView to scroll over the page. I need to add more stuff to it and when I do, it gives an error because of the limited height. Can anyone help me in expanding the [...] read more
flutter
dart
scroll
expand
singlechildscrollview
0votes
2answers

Compare unsigned with literal

I read here, that there are different arithmetical assembly instructions for signed operations. However consider code: unsigned char a = 0xff; if(a == 0xff){ // do something } I remember in collage I made such code and the if condition was never true, but it was on AVR. I have [...] read more
c
gcc
x86
0votes
0answers

`mtp-detect` on GoPro HERO8 PTP Layer error 02ff: LIBMTP_Get_Storage()

I posted an issue on the libmtp github page but am crossposting it here for more visibility. I have the latest code that I built from source, but I am seeing the same issue in previous versions as well. I am trying to access my GoPro HERO 8 over USB [...] read more
debian
mtp
gopro
0votes
0answers

Mariadb (mysql) keeps crashing, Ubuntu 20.04

I am using a linode with 2vCPU and 4Gb of RAM to run hesk on ubuntu. mariadb starts fine (though service mariadb start hangs forever, if i press ctrl+c it has still started and works), hesk works fine, then eventually mysqld will crash and the log shows this >2020-09-11 14:15:41 [...] read more
mysql
ubuntu
linode
0votes
0answers

Flutter project unable to sync with firebase

I'm new to android studio and have been working on a small project, however after i changed my pc I tried to copy everything i did before and then follow the steps as before. However when creating the android project in firebase, the app doesn't seem to sync with it. [...] read more
java
android
firebase
android-studio
flutter
0votes
0answers

ROS subscriber error in android org.ros.internal.node.xmlrpc.XmlRpcTimeoutException

I am working on the ROS project on android. I am able to connect with the master but when I Subscribe to any topic I am getting this ROS Error. > E/UpdatePublisherRunnable: org.ros.internal.node.xmlrpc.XmlRpcTimeoutException: org.apache.xmlrpc.client.TimingOutCallback$TimeoutException: No response after waiting for 10000 milliseconds. I am not sure how to solve this error. [...] read more
android
ros
0votes
0answers

Microsoft Hive ODBC driver fails in .Net core app

I'm using Microsoft Hive ODBC driver (v2.6.7) to get data from Windows Azure HDInsight service from my .net core app (netcoreapp3.1). After hundreds of successful queries my app just crashes without any exception raised with exit code -1,073,740,791 (0xffffffff). In Windows Events Log I see the following error: Faulting application [...] read more
.net-core
hive
odbc
0votes
1answer

Difference between ASM/C++ and Python when NEG unsigned 1

I recently stumbled at an error which is present only in Python. Negating unsigned 1 does not equal FFFFFFFF. In Assembler: MOV(eax, 0x1) NEG(eax) > Result is 0xffffffff Same result in C++ In Python however: import numpy as np print(hex(~np.uint32(1))) > Result is 0xfffffffe What am I missing here? read more
python
0votes
2answers

Preprocessor division giving weird value

This is driving me crazy. I have a code which is outputting a weird value while using division: #define NANOSECONDS_PER_SECOND 1000000000 uint64 CurrentTimeInNanoSecs; uint64 GetTimeInNanoSecs( ) { printf("\n%X", (CurrentTimeInNanoSecs >> 32) ); printf("\n%X", (CurrentTimeInNanoSecs & 0xFFFFFFFF) ); return ( CurrentTimeInNanoSecs ); } void GetCurrentTimeInSecs() { uint32 Time = GetTimeInNanoSecs() / [...] read more
c
c-preprocessor
integer-division
unsigned-integer
0votes
1answer

Is it possible to calculate authentication key within the IPsec/L2TP tunnel?

I have established IPsec/L2TP tunnel. I can retrieve all secret information, using the ip xfrm state command. Example of output: src 192.168.1.105 dst 58.93.199.252 proto esp spi 0x047b9a7f reqid 1 mode transport replay-window 32 auth-trunc hmac(sha1) 0x4e7b5739049a9ed7bc43255991bc1ff71b02de0b 96 enc cbc(aes) 0x50d5bbef1c5e5ccda33113f76140901b753318d0c1c10e2588137fa454a39076 encap type espinudp sport 4500 dport 4500 addr 0.0.0.0 [...] read more
encryption
hmac
ipsec
0votes
2answers

Is it possible to find the address of the end of an array with a reference to the n+1th element?

I need to know when the pointer went through the whole array -> is on the first position behind it. Examplecode in c: unsigned int ar[10]; char *pointer = (char*) ar; while(pointer != (char*) &ar[10]){ *pointer++ = 0xff } Would this example work to set every element of the array [...] read more
arrays
c
pointers
array-pointer
0votes
1answer

custom crc32 calculation in python without libs

I have been looking for a simple python code which can generate a crc32-sum. It is for a stm32 and i dont find a good example which is adjustable. To get the right settings for my calculation i used following side. http://www.sunshine2k.de/coding/javascript/crc/crc_js.html The settings would be the following: Polynomial: 0x4C11DB7, [...] read more
python
python-3.x
stm32
crc32
0votes
0answers

Analogue of ComposeShader in Flutter

I'm searching of analogue of Androids ComposeShader in Flutter. My code in Android app SweepGradient sweepGradient = new SweepGradient(width / 2, height / 2, colors, null); RadialGradient radialGradient = new RadialGradient(width / 2, height / 2, colorWheelRadius, 0xFFFFFFFF, 0x00FFFFFF, TileMode.CLAMP); ComposeShader composeShader = new ComposeShader(sweepGradient, radialGradient, PorterDuff.Mode.SRC_OVER); I try to [...] read more
flutter
shader
gradient
0votes
0answers

Convert directly hex string char to int in java?

I have a string that contains a value such as "0x1800785" (get from edtitext user input) but the function I want to give the value to requires an int, how can I convert this to an int? this is my code: int offset=0xffffffff;//max 8 chars int newoffset=Integer.reverse(offset); Thanks so much. read more
hex
data-conversion
0votes
0answers

MSI-X table with vfio (KVM PCIe Passthrough)

I am working on project that requires PCIe Passthrough (also referred as virtio-passthrough) with Intel x86 CPU and KVM. Have an interesting situation where device that is passedthrough in Guest is configuring all entries in vector table correctly. However, if I see from host, that table is populated, but all [...] read more
pass-through
vfio
0votes
0answers

Not able to Cross-compile and link source code using afl-clang-fast++

I am trying to fuzz a simple C++ code using afl plus plus clang compiler (llvm_mode). I'm able to fuzz the code and generate the ARM object file but it fails while linking. I guess i'm missing some linker options. Any help would be appreciated Following is my command: afl-clang-fast++ [...] read more
llvm
cross-compiling
llvm-clang
linaro
american-fuzzy-lop
0votes
0answers

Thread 2: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)

I am new to coding. Currently, working on changing the bundle identifier name of existing application. Code was running "Thread 2: EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)" at the end. Appreciate, if anyone can break this down for me. libsystem_c.dylib`__abort: 0x7fff5219bb8b <+0>: pushq %rbp 0x7fff5219bb8c <+1>: movq %rsp, %rbp 0x7fff5219bb8f <+4>: pushq %r15 [...] read more
swift
xcode
multithreading
0votes
2answers

How to validate CRC-32 calculation of Zip file

I want to validate that my ZIP file has a correct CRC-32 checksum. I read that in a ZIP file the CRC-32 data is in bytes 14 to 17: Offset Bytes Description[30] 0 4 Local file header signature = 0x04034b50 (read as a little-endian number) 4 2 Version needed to [...] read more
zip
checksum
zipfile
crc
crc32
0votes
2answers

BOTTOM OVERFLOWED BY Infinity PIXELS?

when i implement this code the display shows Bottom Overflowed by infinity pixels. Anyone knows why? I want that the The Image Picker is in the top left corner. Scaffold( body: Builder( builder: (context)=> Container( child: Column( mainAxisAlignment: MainAxisAlignment.center, children: <Widget>[ SizedBox(height: 5.0,), Row( mainAxisAlignment: MainAxisAlignment.center, children:<Widget> [ Align( alignment: [...] read more
firebase
flutter
imagepicker
0votes
1answer

How can I implement these functions into a togglebutton ? Can't get this to work

Sorry, I'm relatively new to Flutter and having some trouble. I want to initiate functions when I press my first, second, or third button. These buttons initiate map markers, polylines, etc. They work fine when assigned onPress with an icon button... I can't figure out how to get them to [...] read more
flutter
dart
0votes
0answers

Powershell hook-script for gPhoto2 running on Windows10

I try to use a hook-script on gPhoto2 running on Windows10 installed via MSYS2 MinGW. gPhoto2 is working quite well. My problem is now that I like to run a hook-script reacting on the events from the camera. I start the gPhoto tethered capture with this code: $env:CAMLIBS="C:\msys64\mingw64\lib\libgphoto2\2.5.23\" $env:IOLIBS="C:\msys64\mingw64\lib\libgphoto2_port\0.12.0\" gphoto2 [...] read more
powershell
libgphoto2
0votes
1answer

error LNK2019: unresolved external symbol __imp_get_driver_instance referenced in function

Here is my Common library CMakeLists.txt file: add_library( Common SHARED Config.cpp Config.h Logger.cpp Logger.h Database/DatabaseLoader.cpp Database/DatabaseLoader.h Database/MySQLConnection.h Database/MySQLConnection.cpp Database/MySQLTable.h Database/MySQLTable.cpp ) if(WIN32) # Add the MySQL include directories to this target. target_include_directories(Common PUBLIC ${FULL_PATH_TO_MYSQL_CONNECTOR_CPP_DIR}/include/jdbc ) target_include_directories(Common PUBLIC ${FULL_PATH_TO_MYSQL_CONNECTOR_CPP_DIR}/include/jdbc/cppconn ) # Link the MySQL library to your executable. target_link_libraries(Common PUBLIC ${FULL_PATH_TO_MYSQL_CONNECTOR_CPP_DIR}/lib64/vs14/mysqlcppconn8.lib [...] read more
c++
cmake
mysql-connector
0votes
0answers

MediaQuery.of() called with a context that does not contain a media query. visual studio Code

Good morning developers, after I finished my first app.... I just face a big issue here you can find the imagethis issue is start showing after am trying to start moving the app to the phone As you can see the img I don't know how to fix this problem [...] read more
flutter
visual-studio-code
0votes
1answer

Segfault in qemu user emulation of Android binary

I'm running qemu on an Ubuntu 18.04 x64 host and trying to do user emulation of dynamic binaries built for Android (for aarch64 or i386) using the Android NDK, but I always get a segfault. For example: Build$ i686-linux-android28-clang hello_world.c -o hello_world Check dependecies and paths$ file ./hello_world ./hello_world: ELF [...] read more
android
segmentation-fault
emulation
qemu
0votes
1answer

CAN not sort out :android.content.res.Resources$NotFoundException: Resource ID #0xffffffff

It's my first android application and I've an issue with an error that i couldn't sort it out. I've done some researches in order to see similar cases such as android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff but unfortuently it doesn't help me . Here is the debugger output : [...] read more
android
debugging
0votes
1answer

flutter run command is stuck

i download a new project using "flutter create" command, but when i run the flutter run command , it never finished and gets stuck . Below is the log: > PS C:\Users\Tufail\Documents\myflutterprojects\myapp> flutter doctor Doctor summary (to see all details, run flutter doctor -v): [√] Flutter (Channel stable, 1.20.2, on [...] read more
flutter
dart
visual-studio-code
0votes
1answer

How can I clear all markers and polylines when some come from a provider and some are generated in my main class?

Here's my Google Map widget: body: Stack(children: <Widget>[ SizedBox( width: MediaQuery.of(context) .size .width, height: MediaQuery.of(context).size.height, child: Consumer<ProviderMaps>(builder: (context, Provmap, widget) { return GoogleMap( myLocationEnabled: true, compassEnabled: true, mapToolbarEnabled: true, zoomControlsEnabled: true, zoomGesturesEnabled: true, onCameraMove: _onCameraMove, // onLongPress: Provmap.addMarker, onLongPress: _addMarkerLongPressed, myLocationButtonEnabled: false, mapType: maptype, onTap: Provmap.addMarker, markers: markers.values.toSet().union(Provmap.markers), circles: Set<Circle>.of(circles.values), [...] read more
flutter
dart
0votes
1answer

Running a C application from a different address than 0

I have two applications one is just starting the second application on the adress 0x20000 I can debug in the first application and it reaches the line that will redirect to the 0x20000 the address. The code from the first application looks like this: uint32_t a_StartAddress = (uint32_t)(uint32_t *)0x20000; ((void [...] read more
c
code-composer
tms570
0votes
1answer

Flutter how can i show data of api response

I have made a simple screen which show the static data of list but now I try to show the API response in the list but don't know how to show it This is my code class _EventsState extends State<Events> { dynamic _events = []; dynamic isloader = false; @override [...] read more
flutter
dart
0votes
0answers

drmemory crashes when attempting to run my program (written in c)

drmemory is crashing with the following error: <Invalid opcode encountered> <intercept_syscall_wrapper: not hooking NtCreateProcess due to conflict @0x00007ff8bc1dd6f5> <intercept_syscall_wrapper: not hooking NtCreateProcessEx due to conflict @0x00007ff8bc1dca05> <intercept_syscall_wrapper: not hooking NtCreateUserProcess due to conflict @0x00007ff8bc1dd8d5> <intercept_syscall_wrapper: not hooking NtCreateThread due to conflict @0x00007ff8bc1dca25> <intercept_syscall_wrapper: not hooking NtCreateThreadEx due to conflict @0x00007ff8bc1dd7f5> [...] read more
c
mingw
dr-memory
0votes
0answers

Corresponding /dev/ttyUSB0 on Windows to read/write use case with python

i had to create a python program to read fingerprint sensor that works well on linux, Now i want the same code to run i windows but there is a problem with port, how to manage or access usb devices in windows with python. in brief how do i update [...] read more
python
linux
windows
serial-port
fingerprint
0votes
0answers

Flutter: unfortunately app has stopped android jelly bean 4.2 emulator

My flutter app runs perfectly well on android v9 emulator but the app crashes right after the installation on my android v4.2 emulator. When I build the apk and drag it onto my physical old android device (v4.2) it runs perfectly well. But its too old and I can't find [...] read more
android
flutter
android-4.2-jelly-bean
0votes
0answers

How to get the EXCEPTION_POINTERS in Windows 32bit x86 assembly?

So I have some basic asm file that looks like the one below(print_eax is removed as it's large and unrelated to the question) and have been using this http://www.godevtool.com/ExceptFrame.htm as a source of information. But I'm unsure of how to get the EXCEPTION_POINTERS. I've tried popping from the stack, and [...] read more
winapi
assembly
x86
nasm
0votes
1answer

libcurl external socket example, how to read from socket?

I found this simple libcurl example on how to use a custom socket. /*************************************************************************** * _ _ ____ _ * Project ___| | | | _ \| | * / __| | | | |_) | | * | (__| |_| | _ <| |___ * \___|\___/|_| \_\_____| * * [...] read more
c
libcurl
0votes
1answer

How to populating 2nd DropdownMenu based on first item selected flutter

I'm populating states name from JSON and display as a dropdown list after that I show 2nd dropdown list based on first value selected. But I don't now how to populate 2nd dropdown when 1st dropdown value changed. I also want to get location id, name and city when select [...] read more
flutter
dart
drop-down-menu
0votes
1answer

How this piece of ASM.js code should be evaluated by the engine?

According to the spec, the type "int" in ASM.js does not have signedness. > The int type is the type of 32-bit integers where the signedness is not known. In asm.js, the type of a variable never has a known signedness. This allows them to be compiled as 32-bit integer [...] read more
emscripten
asm.js
0votes
0answers

ubiattach failed with too many bad blocks

I was trying to read firmware from a NAND chip, and extract its program and data for analyse. From online I learned, you must create an UBI device with your image file write to it, then you can mount it to your system. DESCRIPTION First I read a bin file [...] read more
linux-kernel
firmware
ubifs
ubi
0votes
0answers

Make Headless Server Use Hardware Accelaration

I have a headless CentOS 8 Server with an AMD GPU. I want to use hardware acceleration but when I run OpenGL programs with xvfb-run (e.g glxinfo), the system reports I am using software rendering. How can I use hardware acceleration on a headless server? Note that even though output [...] read more
linux
centos
headless
gpu
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

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
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

How to make amdgpu.ppfeaturemask work with kernel 5.4.0 of ubuntu 20.04?

I can unlock the access to adjust clocks and voltages of my AMD GPU by appending the Kernel parameter amdgpu.ppfeaturemask=0xffffffff with kernel 5.8.x of Ubuntu 20.04 but not with kernel 5.4. Why not with kernel 5.4 ? With kernel 5.8, I can edit the file /sys/class/drm/card0/device/pp_od_clk_voltage but with kernel 5.4, [...] read more
ubuntu
kernel
overclocking
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
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
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

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
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
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
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
-1votes
1answer

How to increase the size of the SingleScrollChildView in Flutter?

I am making an app in which one of the pages is scrollable. I used a SingleChildScrollView to scroll over the page. I need to add more stuff to it and when I do, it gives an error because of the limited height. Can anyone help me in expanding the [...] read more
flutter
dart
scroll
scrollview
singlechildscrollview
-1votes
2answers

Scrollable page in flutter

I am new to flutter dart language and was wondering how to make the page scroll. This is one of the pages of the code which I want to scroll: class Second extends StatelessWidget { @override Widget build(BuildContext context) { return DraggableScrollableSheet( builder: (context, scrollController) { return SingleChildScrollView( controller: scrollController, [...] read more
flutter
dart
widget
scrollview
singlechildscrollview
-1votes
0answers

Converting a 32 bits value to ASCII string by subtraction rather than division in MIPS

procedure __SKRASMTEST(ValueAddr : dword; Len : byte; var Str : string); // ==================================================================================================================== // // procedure __SkrASMConvertDecimalToStr(Value : dword; Len : byte; var Str : string); // // This routine converts a 32 bit value <Value> to a printable string <Str>. Length is 10 // characters. <Str> is padded with [...] read more
ascii
mips
-1votes
2answers

How to create container with box shadow at bottom and all sides

I tried to create a container with box shadow but not able to get same result as I want. This is i achieved but i want to show shadow with rounded edges and one of my horizontal list with bottom shadow and 2nd with all side shadow. I also need [...] read more
flutter
dart
-1votes
0answers

NVMe Ubuntu Controller reset

I am running ubuntu 20.04, with the OS running on a Mushkin 500GB SATA SSD. I installed a Samsung 970 NVME 500GB into the Motherboard M.2 2280 slot (ASRock H40M Pro4). The system found the device, which I was able to partition, format with xfs, and mount to /opt. Within [...] read more
ubuntu-20.04
nvme
-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

Flutter: MediaQuery.of() called with a context that does not contain a MediaQuery

How can I fix this error? import 'package:flutter/material.dart'; import 'package:adobe_xd/pinned.dart'; import 'package:flutter_svg/flutter_svg.dart'; void main() => runApp(XDInitial_screen1()); class XDInitial_screen1 extends StatelessWidget { XDInitial_screen1({ Key key, }) : super(key: key); @override Widget build(BuildContext context) { return Scaffold( backgroundColor: const Color(0xffffffff), body: Stack( children: <Widget>[ // Adobe XD layer: 'Bg' (shape) Container( width: [...] read more
flutter
dart
-2votes
2answers

How to bruteforce a lossy AND routine?

Im wondering whether there are any standard approaches to reversing AND routines by brute force. For example I have the following transformation: MOV(eax, 0x5b3e0be0) <- Here we move 0x5b3e0be0 to EDX. MOV(edx, eax) # Here we copy 0x5b3e0be0 to EAX as well. SHL(edx, 0x7) # Bitshift 0x5b3e0be0 with 0x7 which [...] read more
math
assembly
x86
reverse-engineering
-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
-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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  1. https://msdn.microsoft.com/en-us/library/cc231198.aspx

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