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

28votes
2answers

Java storing two ints in a long

I want to store two ints in a long (instead of having to create a new Point object every time). Currently, I tried this. It's not working, but I don't know what is wrong with it: // x and y are ints long l = x; l = (l << [...] read more
java
bit-manipulation
primitive
16votes
3answers

How to find magic bitboards?

const int BitTable[64] = { 63, 30, 3, 32, 25, 41, 22, 33, 15, 50, 42, 13, 11, 53, 19, 34, 61, 29, 2, 51, 21, 43, 45, 10, 18, 47, 1, 54, 9, 57, 0, 35, 62, 31, 40, 4, 49, 5, 52, 26, 60, 6, 23, 44, 46, [...] read more
c
bit-manipulation
chess
15votes
4answers

How to convert CIDR to network and IP address range in C#?

I have been looking around quite a bit to find some C# code to convert a network in CIDR notation (72.20.10.0/24) to an IP address range, without much luck. There are some threads about CIDR on stackoverlow, but none seems to have any C# code and cover exactly what I [...] read more
c#
cidr
14votes
1answer

Setting up a Bluetooth PAN

I am trying to create a Bluetooth PAN between two devices where I can access REST based web services over the Bluetooth connection. I have had some success with various proof of concepts (both Bluetooth legacy and Bluetooth Smart) but I am having problems trying to create a Group network [...] read more
linux
networking
wireless-networking
bluetooth
pan
12votes
1answer

std::mt19937 fails when std::uint_fast32_t is 4 bytes in GCC

The problem I have encountered occurs when I'm trying to test the cppreference example on generating pseudo-random numbers. Given the example: #include <iostream> #include <random> int main() { std::random_device rd{}; std::mt19937 gen{rd()}; std::uniform_int_distribution<> dis{1, 6}; for(int n = 0; n < 10; ++n) { std::cout << dis(gen) << ' '; [...] read more
c++
gcc
random
c++17
mt19937
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
9votes
2answers

Generating pseudo-random 16-bit integers

I need to generate 16-bit pseudo-random integers and I am wondering what the best choice is. The obvious way that comes in my mind is something as follows: std::random_device rd; auto seed_data = std::array<int, std::mt19937::state_size> {}; std::generate(std::begin(seed_data), std::end(seed_data), std::ref(rd)); std::seed_seq seq(std::begin(seed_data), std::end(seed_data)); std::mt19937 generator(seq); std::uniform_int_distribution<short> dis(std::numeric_limits<short>::min(), std::numeric_limits<short>::max()); short n = [...] read more
c++
c++11
random
mersenne-twister
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
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
7votes
2answers

Problem switching to v8086 mode from 32-bit protected mode by setting EFLAGS.VM to 1

I'm in 32-bit protected mode running at current privilege level (CPL=0). I'm trying to enter v8086 mode by setting EFLAGS.VM (Bit 17) flag to 1 (and IOPL to 0) and doing a FAR JMP to my 16-bit real mode code. I get the current flags using PUSHF; set EFLAGS.VM (bit [...] read more
assembly
x86
nasm
x86-64
osdev
7votes
8answers

How can I print maximum value of an unsigned integer?

I want to print the maximum value of the unsigned integer which is of 4 bytes. #include "stdafx.h" #include "conio.h" int _tmain(int argc, _TCHAR* argv[]) { unsigned int x = 0xffffffff; printf("%d\n",x); x=~x; printf("%d",x); getch(); return 0; } But I get output as -1 and 0. How can I print [...] read more
c
7votes
3answers

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

A few months ago we installed SQL Server 2012 in Windows 2008 R2 under the virtual account "NT Service\MSSQLSERVER", all good. A few days ago, one of the admins of the IT dept installed Full Text Search component to the SQL Server 2012 (the problem is he could not recall [...] read more
sql-server
sql-server-2008
domain
permissions
7votes
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
6votes
4answers

Count leading zeros in __m256i word

I'm tinkering around with AVX-2 instructions and I'm looking for a fast way to count the number of leading zeros in a __m256i word (which has 256 bits). So far, I have figured out the following way: // Computes the number of leading zero bits. // Here, avx_word is of [...] read more
c
x86
simd
intrinsics
avx
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

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
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
4votes
2answers

How to display an ImageView in a custom view in Android

I have an activity that calls a custom view when a button is pressed. The custom view runs fine until I try to add an ImageView to it. I have tried this in my xml that is called in my main activity with setContentView: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" [...] read more
android
view
imageview
4votes
1answer

Why does ARM treat "0xFFFFFFFF" as out of "int" range for enums but not for assignment?

I am trying to compile the following code in C (armcc file.c): typedef enum A { JANUARY, FEBRUARY= 0xFFFFFFFF /* Warning seen on this line */ }A; int main() { int max = 0xFFFFFFFF; /* No warning seen for this line*/ ... } I get a warning only for the [...] read more
c
armcc
4votes
1answer

`LoadLibraryExW` triggers exception `0xC0000023` from `NtMapViewOfSection`

It's going to be really hard to reduce the scope of this question, but here we go. CONTEXT I'm in the context of a 32-bit ActiveX control which is loaded into a host ( TstCon.exe). After unloading and reloading the control, I receive a streak of errors from NtMapViewOfSection, the [...] read more
c++
winapi
visual-c++
activex
seh
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
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
4votes
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
4votes
0answers

Block incoming traffic in bonding mode when primary interface is down

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

Issue installing IE11

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

System Account Logon Failures every 30 seconds

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

How can I get FreeNAS to respond to libvirt shutdown requests

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

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

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
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
3votes
1answer

counting L1 cache misses with PAPI_read_counters gives unexpected results

I am trying to use PAPI library to count cache misses. cache hit performance counter is not available on my hardware, that's why I am trying to determine cache hits with no cache misses. I am trying few things. First version of my code is this: int numEvents = 2; [...] read more
c
caching
x86
perf
papi
3votes
2answers

Quadtree neighbor search in constant time with QTLCLD

I wish to implement this paper's algorithm for accessing quadtree node neighbors in constant time. I am facing problems when attempting to access diagonal neighbors (for when the quad is one or more level smaller than the searched neighbor). Example: root->Child(SE)->Child(NE)->GetNeighbor(NW) should return root->Child(NE). However, I get a result of [...] read more
c++
tree
linear
nearest-neighbor
quadtree
3votes
0answers

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

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

How to debug ip xfrm rules

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

Same hardware/software, significant difference in performance

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

Iptables u32 matching nat

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

CentOS reporting lower total memory compared others in AWS

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

Windows 2008 R2 services not working

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

Setting up gateway on different subnet than IP address

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

Packets not entering FORWARD chain

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

HP P410 ADU (hpacucli) generates empty report

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

Marking packets with iptables with a NAT

I have to write bash scripts for a router to control bandwidth limitation for a given user on a given domain name. For this, I'm using iptables to mark the packets incoming from a restricted domain to a user ip address in the private network. With each couple user_ip/domain_ip I [...] read more
linux
iptables
routing
nat
qos
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
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
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

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

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
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
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
clock
xeon
2votes
3answers

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
2votes
2answers

Normalizing a two complement number

I am working on some Tensilica processor and I don't understand the normalization process. NSA - Normalized Shift Amount NSA at, as NSA calculates the left shift amount that will normalize the twos complement contents of address register as and writes this amount (in the range 0 to 31) to [...] read more
assembly
binary
normalization
twos-complement
fixed-point
2votes
0answers

Task Scheduler returns 0xFFFFFFFF in Windows 7

I created a Python script that collects data from a website and generates an Excel file based on a table in that website. I used pyinstaller with -w -F parameters to generate a .exe file. I ran this file a few times and it worked perfect so I decided to [...] read more
python
windows
task
pyinstaller
scheduler
2votes
2answers

After Migrating to AndroidX, i got this Error inflating class <unknown>

After Migrating to AndroidX from Refactor tools in Android Studio, i got this error - android.view.InflateException: Binary XML file line #42: Error inflating class .. Before i was Working Perfectly but only after migrating it was coming up with these errors in some activities.. StackTrace : java.lang.RuntimeException: Unable to start [...] read more
java
android
android-studio
androidx
2votes
2answers

How can i add two numbers with 12 bytes each-one?

I want to add two numbers that have 12 bytes and to store the result in a 16 bytes var. How can i do this? section .data big_num1 dd 0x11111111, 0x22222222, 0x33333333 big_num2 dd 0xffffffff, 0x22222222, 0x33333333 section .bss result_4word resd 4 I think i can add the first 4 [...] read more
assembly
x86
bigint
carryflag
extended-precision
2votes
4answers

generating an .au file in c

Out of morbid curiosity I've been trying to come up with a program that will generate a 4 second 440 A note in C. However, playing the outputted file in VLC does not produce any music. Using Wikipedia as a guide to the .au header on this page: http://en.wikipedia.org/wiki/Au_file_format I [...] read more
c
audio
2votes
2answers

Google Play email re. call/sms log permissions?

I have ~a dozen apps on the play store which are identical, with UI tweaks for various clients. I've recently gotten an automated email from Google Play for 2 of my apps (but not the others) saying that they use permissions which are no longer allowed. They email at the [...] read more
android
google-play
android-permissions
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
5answers

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

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
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
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
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
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
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

Writing to non-volatile memory without disrupting UART interrupts execution on STM32F4XX

I have several OVERRUN errors on UART peripheral because I keep receiving UART data while my code is stall because I'm executing a write operation on flash. I'm using interrupts for UART and has it is explained on Application Note AN3969 : > EEPROM emulation firmware runs from the internal [...] read more
interrupt
stm32
ram
uart
stm32f4
1vote
1answer

Golang CGO Exception 0x40010006

Im trying to run a function from a dll using cgo. The library is in c++ so I created a C header here are the functions defined and a .cpp file where is the implementation. lib.h: #ifdef __cplusplus extern "C" { #endif void* LoadEngine(char*); #ifdef __cplusplus } #endif lib.cpp: #include [...] read more
c++
go
cgo
seh
1vote
0answers

problem running several command over SSH with JSch

I'm trying to run several command over SSH with JSch.The different command works fine but I have a problem: it looks like the system restart from the root folder after any cmd, if I try to read in another folder, simply I can't because I will read again the root [...] read more
java
ssh
jsch
1vote
1answer

How to have same page destination between multiple buttons using hero

I am trying to make a flutter app. Recently, I have learned how to use hero with two different buttons which all have the same destination. So, I tried to use hero with infinitely creatable containers. This is what I came up with: import 'package:flutter/material.dart'; void main() => runApp(MainPage()); class [...] read more
dart
flutter
1vote
0answers

MIPS Assembly Calculating memory addresses

I am learning about assembly and am doing assembly computations, particularly with MIPS instructions to calculate the changed registers and memory addresses. The initial address states are here : $t0 = 0x0000000B, $t1 = 0xFFFFFFFF, $t2 = 0xABABABAC This is the code we have to use to calculate: addi $t4, [...] read more
assembly
memory
mips
computation
1vote
1answer

Calling COM method throws unexplainable COMException in C#, works fine in C++

I'm learning about consuming a COM interface in C# by example, so I've written a coclass and interfaces for the (I)DxDiagProvider and IDxDiagContainer COM objects. However, while the apparently equivalent code works fine in C++, calling one of it's methods fails with a COMException (HRESULT is -1) in C#. I [...] read more
c#
c++
com-interop
1vote
2answers

cma buffer memory allocation failed

I am trying to write a driver for DMA Linux, and my driver has been failing to execute dma_coherent_alloc, I already increased CMA memory, and coherent_pool ... what am I missing ? dmesg Booting Linux on physical CPU 0x0 Linux version 4.14.0-xilinx-v2018.2 (oe-user@oe-host) (gcc version 7.2.0 (GCC)) #5 SMP PREEMPT [...] read more
linux
linux-kernel
1vote
1answer

how to add drawable all images in array in android programmatically

I have a code that let me use images in drawable folder, but all the images are stored in array by name- I wanna load them programmatically by a function and store them in array this is the array : private int[] theBitmapIds = { R.drawable.elefant_001, R.drawable.elefant_002, R.drawable.elefant_003, R.drawable.elefant_004, R.drawable.elefant_005, [...] read more
java
android
image
function
android-drawable
1vote
2answers

Using FatFs causes infinite loop in f_write on PIC18F46J50 uC

Im trying to implement the FatFs module for a project for several days now. My low-level I/O configurations are correctly implemented as i can see the signals using an oscilloscope. But i cant seem to get a proper write working on the SD-Card. All i get is an empty file [...] read more
c
sd-card
fatfs
1vote
1answer

Convert a C++ integral type template parameter to a "longer" integral type

I have a templated function that accepts an integral type and performs a mathematical operation on two input parameters: template<typename T, typename R> R multiply( const T& lhs, const T& rhs ) { R ans = static_cast<R>( lhs ) * static_cast<R>( rhs ); return ans; } (For simplicity, assume that [...] read more
c++
templates
types
1vote
1answer

Pointer is being being masked when calling a C function from Fortran

TL;DR When I pass an array from Fortran to C, the array's address is incorrect in C. I've checked this by printing the address of the array in Fortran before the CALL, then stepping into the C function and printing the address of the argument. * The Fortran pointer: 0x9acd44c0 [...] read more
c
cuda
fortran
1vote
0answers

Angular 5 with .NET Core 2.1 - Cannot find modules, when it can

Angular 5 with .NET Core 2.1 back-end. This project was started with Visual Studio's combined project template - not the either of the CLI's. I imported ngx-bootstrap, and confirmed it is loaded correctly in the node_modules folder. I started the project. Loaded the component. Worked well. Then I started fiddling [...] read more
.net
angular
asp.net-core
.net-core
1vote
1answer

MapFragment inside a fragment, app crash on reopening fragment

i have a mapfragment inside another fragment <?xml version="1.0" encoding="utf-8"?> <FrameLayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="fill_parent" android:layout_height="fill_parent" > <fragment android:id="@+id/map" android:layout_width="match_parent" android:layout_height="match_parent" android:name="com.google.android.gms.maps.MapFragment" /> </FrameLayout> and im initializing map in oncreateview @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { view = inflater.inflate(R.layout.event_fragment, null); try{ events = new ArrayList<EventsModel>(); try { initilizeMap(); [...] read more
android
android-fragments
google-maps-android-api-2
android-nested-fragment
1vote
1answer

MySQL for Visual Studio installation fails, error code 1603

The MySQL Datasource is not appearing on my Visual Studio, I've read here that I need to install MySQL for Visual Studio 1.2.7. But when I try to install MySQL for Visual Studio on my PC (Windows 7 x64, Visual Studio 2015 and 2017 Enterprise), the installation fails at 93% [...] read more
mysql
visual-studio
1vote
0answers

How to find a WACOM tablet screen?

I trying to fill Wacom tablet screen with my application. How can I find this screen working area? At this moment I just trying to find this screen by Device Friendly name using ScreenInterrogatory class (code below), but it requires me to know device name. I looking for a way [...] read more
c#
wacom
1vote
0answers

.Net Core 2.2 visual studio crashes when ajax is called

I have an AJAX function $.ajax({ type: "POST", url: "Action", data: JSON.stringify(model), contentType: "application/json; charset=utf-8", dataType: "json", success: successFunc, error: errorFunc }); then I have a controller with the action i want to call [HttpPost] public async Task<IActionResult> Action([FromBody] Model model) { var result = await service.DoSomething(model) var callbackUrl = [...] read more
c#
.net
ajax
.net-core
1vote
2answers

Suggestions for interop'ing with size_t via PInvoke

We have a native code SDK which predominantly uses the C/C++ size_t type for things like array sizes. We additionally provide a .NET wrapper (written in C#) which uses PInvoke to invoke the native code, for those that want to integrate our SDK into their .NET app. .NET has the [...] read more
c#
.net
pinvoke
size-t
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
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
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
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
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
1answer

Routing between OpenSWAN / IPSEC tunnels

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

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
3answers

Windows Server 2003: Backup Failed

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

Policy routing local user's traffic down a tunnel

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

How to debug intermitent network outage on Citrix XenServer

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

Freebsd, ipfw sched - config type = QFQ get frozen

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

OpenVPN Network Unreachable

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

Apache22 on FreeBSD - Starts, does not respond to requests

I'm running Apache 2.2.17 with the peruser MPM on FreeBSD 8.2-RC1 on Amazon's EC2 (so it's XEN). It was installed from ports. My problem is that, although Apache is running, listening for, and accepting connections, it doesn't actually respond to any or show them in the log at all. If [...] read more
apache-2.2
freebsd
1vote
1answer

MDADM Array Being Limited to 2.0TB

I have an MDADM array with four 1TB disks in a RAID5 configuration. Here's the relevant part of mdadm --detail /dev/md1: Version : 00.90 Raid Level : raid5 Array Size : 2929537920 (2793.83 GiB 2999.85 GB) Used Dev Size : 976512640 (931.28 GiB 999.95 GB) Raid Devices : 4 Total [...] read more
ubuntu
software-raid
mdadm
filesystems
1vote
3answers

Why is it necessary to set a netmask of 255.255.255.255 for “alias” addresses in FreeBSD?

From FreeBSD handbook on the topic of virtual hosts: > For a given interface, there must be one address which correctly represents the network's netmask. Any other addresses which fall within this network must have a netmask of all 1s (expressed as either 255.255.255.255 or 0xffffffff). Can anybody explain why [...] read more
networking
freebsd
alias
interface
1vote
1answer

NetLogon and RPC Errors

Situation: Co-located DCs connected by T1 to client working location. The T1 is averaging at about 2/3 usage. All 1 Active Directory. I am trying to deploy a start-up script to clients at the working location though GPO. It seems to work on some computers and not on others, but [...] read more
domain-name-system
active-directory
group-policy
netlogon
1vote
1answer

LVS Cluster Help

I'm trying to set up an LVS Cluster for a project and I don't have a lot of knowledge in these layers of networking. I've run into an issue where the real server rejects any packets from the director, but will allow packets to the same port from my client. [...] read more
linux
cluster
high-availability
0votes
0answers

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

External SSD Drive won't mount on OSX

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

Debugging MTP transmission/driver on windows

Basically I'm developing USB device, which will be using MTP for file transmission. It works fine with Konqueror, and Dolphin I can successfully copy files around, also mtp-getfile works (on Linux). On windows I can see my device and list files, but when I try to copy any of them, [...] read more
windows
usb
drivers
debug
mtp
0votes
0answers

Wine x64 w/ 32-bit prefix "page fault on read access to 0xffffffff in 16-bit code"

I'm trying to setup an old education program my wife wants to try with our kids. Unfortunately, it was built in the Windows 3.1 / Windows 95 era. I'm running Fedora 29 x86_64 with Wine 4.0-0.3.rc2. I've setup a 32-bit prefix per https://wiki.winehq.org/FAQ#How_do_I_create_a_32_bit_wineprefix_on_a_64_bit_system.3F . When I run the setup.exe on [...] read more
linux
wine
16-bit
windows-95
windows-3.1
0votes
1answer

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

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

System hang and black screen BugCheckCode 278 and BugCheckCode 0

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

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

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

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

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

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

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

different speed ssd partitions

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

Kworker thread has high CPU usage

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

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

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

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
1answer

Laptop computer grahpic opens and loads slowly

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

Wine crashes when trying to run portable version of Firefox

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

OSX Panic about once a week

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

xorg.conf: Why does this have no effect?

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

mux / remux / box in memory h264 frames to mp4 via C / C++ (no ffmpeg cmdline)

I have looked at various tutorials and I am still struggling to correctly frame raw h264 into an mp4 container. The problem is the stream does not have an end (live) and is in memory, a lot of the examples available of muxers assume the streams are located on disk [...] read more
ffmpeg
mp4
h.264
0votes
0answers

i2cdetect not able to detect my sensor HMC5883L on x86 Intel Joule 570x

I have built mainline kernel 5.0-rc7 for 64-bit x86 Intel Joule 570x. I have connected my sensor (datasheet) with the following connections : SDA - PIN 31 (J13) SCL - PIN 33 (J13) GND - PIN 39 (J12) VCC - PIN 40 (J12) Here is the datasheet for my Intel [...] read more
linux-kernel
embedded-linux
i2c
iio
0votes
1answer

How to measure thread time for progress bar?

I want to follow a thread progress. I have already implemented progress bar graphically, but I am wondering how to efficiently measure progress of the thread in a real time. Progress bar template<typename T> inline T Saturate(T value, T min = static_cast<T>(0.0f), T max = static_cast<T>(1.0f)) { return value < [...] read more
c++
multithreading
progress-bar
0votes
0answers

pic32mz EF UART

Can anyone give me the configuration and code for sending a character in UART? I am using Pic32mz EF starter kit and MPLAB X-IDE v5.15. I tried a code but it is not giving out any UART in tera term or putty. // PIC32MZ2048EFM144 Configuration Bit Settings // 'C' source [...] read more
frequency
clock
uart
baud-rate
pic32
0votes
1answer

PHP userland cache with OpCache (not working as expected)

i want use PHP OpCache as userland cache (like APCu, Redis, Memcache) as fallback where better caching solution aren't avaible. The idea is store the data to cache into php files created at runtime and read the data with include. In this way, OpCache should be cache in memory the [...] read more
php
caching
opcache
0votes
0answers

How can I stop to exit main function? and Is infinite sleep consume many CPU usage?

Q1.Is it a good way adding "while&sleep" in order to avoid to exit main function like below? main() { run thread while(1) sleep(0xFFFFFFFF); } Q2. Are the two differ in terms of CPU perspective? Case1) while sleep(1); Case2) while sleep(0xFFFFFFFF); read more
infinite-loop
cpu-usage
thread-sleep
0votes
0answers

Call a function in a Timer

I have code that animates a falling motion across the screen by spawning enemies at the top and deleting them at the bottom. This is good however all that is needed is to space out the spawning time of the enemies by calling the function spawnEnemy(). How would I go [...] read more
swift
sprite-kit
0votes
1answer

Holographic Emulator hangs before Unity splash screen

I am running Visual Studio 2015 update 3, Unity 5.6.3f1, Holographic Emulator 10.0.14393.1358 and Windows 10 SDK 10.0.14393.798. I am just working through a Pluralsight course for HoloLens Development Fundamentals and I keep running into this issue when I deploy my app to the HoloLens emulator. Whether I run without [...] read more
c#
unity3d
visual-studio-2015
unity5
hololens-emulator
0votes
1answer

Splash screen causing cross threading exception if startup form closed from code

I've just inherited a legacy VB.Net project which runs fine in VS Community 2017 on a machine on the client's network, but when I try and run the code locally (on VS2017 Pro) I get an exception. The project has the following properties set: * Splash screen: SplashInvoice * Startup [...] read more
vb.net
winforms
splash-screen
0votes
1answer

use tun0 in jail (FreeBSD 11.1-RELEASE-p4)

tell me how to share openvpn interface(tun0) in the main system for jail and use it in jail In main host(openvpn interface): tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1500 options=80000<LINKSTATE> inet 10.56.52.1 --> 10.56.48.253 netmask 0xffffffff nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> groups: tun Opened by PID 95844 ping 10.56.48.253 - ok In jail(he looks [...] read more
interface
freebsd
lan
openvpn
jail
0votes
0answers

DirectX 11 Blending works only for the half of the quad

I am new to DX11 and am trying to get Blending to work. Below is my output which was not what I expected. Output [https://i.stack.imgur.com/xZTNT.png] I wanted the entire quad to be the same transparency. Here is my Blend description: D3D11_BLEND_DESC blend_desc; ZeroMemory(&blend_desc, sizeof(blend_desc)); D3D11_RENDER_TARGET_BLEND_DESC rtbd; ZeroMemory(&rtbd, sizeof(rtbd)); rtbd.BlendEnable = [...] read more
directx-11
0votes
1answer

'proc' undefined when trying to add a system call to xv6

I'm trying to add a "clone" system call to the xv6 os. The call creates a new kernel thread which shares the calling process’s address space. The following is my code in proc.c int clone(void(*fcn)(void*), void* arg, void* stack) { int i, pid; struct proc *np; int *myarg; int *myret; [...] read more
system
clone
call
proc
xv6
0votes
1answer

connect with riscV-gdb to homebrewed openOCD

Following connection attempt fails. reiscV-gdb -> patched openOCD (see setup below). Following messages are displayed in gdb and openOCD RISCV-GDB OUTPUT (gdb) target remote 127.0.0.1:3333 Remote debugging using 127.0.0.1:3333 warning: Architecture rejected target-supplied description warning: No executable has been specified and target does not support determining executable automatically. Try using [...] read more
gdb
riscv
0votes
1answer

Calling WDF driver from c++

I've been trying to call a sample driver. I have written DriverEntry method, where I initialize both the driver name and symbolic ling pointing to the driver. // UNICODE_STRING DriverName, SymbolName; // Driver registry paths ... // Driver Entrypoint NTSTATUS DriverEntry(PDRIVER_OBJECT pDriverObject, PUNICODE_STRING pRegistryPath) { Q_UNUSED(pRegistryPath); DbgPrintEx(0, 0, "Driver Loaded\n"); [...] read more
c++
c
windows
driver
wdf
0votes
2answers

Why do i get an error when switching windows?

I tried to build a simple game in python using pygame. At first my problem was to make the movement more smooth, because about every second the movement of the rectangles stuck for a few milliseconds. Then I found an solution by adding "os.environ['SDL_VIDEODRIVER'] = 'directx'" in to my code [...] read more
python
pygame
pygame-surface
0votes
0answers

Python traceroute script doesn't get reply

I am trying to write a traceroute script in python 2.7. The script below works fine if it's just use for ping. After I added "send.setsockopt(socket.IPPROTO_IP, socket.IP_TTL, ttl)" in sendOnePing() then it stuck at "reply, address = icmpSocket.recv(1024)" I have no idea what happened. Any help will be great. Thanks! [...] read more
python
python-2.7
0votes
0answers

raise socket.error(msg) python IMCP Pinger Operation not permitted

I am working on a ICMP Pinger class for python but whenever I run this code I keep getting the same error message. I looked it up and I know that it can be caused by not having SUDO access but tried running it in the terminal as sudo python [...] read more
python
ping
checksum
icmp
0votes
1answer

I'm not getting notifications Oreo and upper

i have to make notification work on android oreo and upper but its not showing, how can i solve my problem? i tried implement instruction from android developers.com but its not helped, anyone can help me with this code? and sorry for my bad english. if (newCount > 0) { [...] read more
java
android
notifications
0votes
0answers

Trying to open a device file in /dev then i get : open() failed with error [No such device]

I am trying to open a device in /dev/devname with the system call open. It returns -1 and when i print the error message i get open() failed with error [No such device] When i try to run cat /dev/devname i also get No such device Below is my code [...] read more
linux-kernel
driver
system
linux-device-driver
device-driver
0votes
0answers

flutter_flip_panel FlipClock countdown decrease more than 1 second each second

i have a strange problem with flutter_flip_panelwhen i run my code, the flipclock runs countdown correctly then when i scroll horizontal listview to the end, when i scroll the list view again to the start point, i see that the countdown interval is 2 seconds when i repeat this action [...] read more
dart
flutter
countdown
0votes
2answers

Output of crc32b in PHP is not equal to Python

I'm trying to convert PHP snippet into Python3 code but outputs of print and echo are different. You can see it in the step 1. Do you know where is the problem? I'm attaching input arrays too but I think they are equal. �W2+ vs ee7523b2 EDIT When I switch [...] read more
php
python
0votes
1answer

Access to xmlhttprequest at from origin has been blocked by cors policy in Angular 6

I'm using Asp.Net Core Boilerplate framework for my server side project. Angular 6 using for the client side project. Server side project working without any errors. (Showing Swagger API - and APIs are also working) No any compile errors from Angular project. When run the angular project using Google chrome, [...] read more
c#
angular
asp.net-core
aspnetboilerplate
0votes
0answers

how to make QR generator take data from another activity(text view,spinner) and print it in Bluetooth printer

I'm working on Qr generator to take data from another activity (text view,spinner) and print it in Bluetooth printer name id no chosen spinner Qr image depending on the data given above and print it in Bluetooth printer public class Main3Activity extends AppCompatActivity implements AdapterView.OnItemSelectedListener { BluetoothAdapter bluetoothAdapter; BluetoothSocket bluetoothSocket; [...] read more
android
0votes
0answers

jmp-pop-call tecnique with stdin

I have written this code as an exercise to practice with jmp-pop-call shellcoding tecnique: global _start section .text _start: jmp call_shellcode shellcode: pop rsi ;sys_write syscall xor rax, rax mov al, 1 xor rdi, rdi mov dil, 1 xor edx, edx mov dl, 18 syscall jmp call_shellcode2 shellcode2: pop rsi [...] read more
assembly
nasm
x86-64
system-calls
shellcode
0votes
1answer

Sklearn - Found input variables with inconsistent numbers of samples: [16512, 4128]

Going through the second chapter of Hands-On Machine Learning with Scikit-Learn & TensorFlow, running to the error stated above. This happens when I try to implement the following line: linReg.fit(housingPrepared, housing_labels) Researching online it looks like it has to do something with the dimensions of my features and my labels [...] read more
python
machine-learning
scikit-learn
0votes
1answer

TEA Java implementation

I am implementing a simple TEA algorithm with example data so I know that my output text (0x53452e77 903386e3) is wrong and should be 0x7556391b 2315d9f8. Any tips? public class Driver { public static void main(String[] args) { int L = 0x12345678; int R = 0x9abcdef; int delta = 0x9e3779b9; [...] read more
java
encryption
0votes
2answers

Problem in Shared Preferenced in LoginScreen. Flutter

help and explain to me in detail please how can I modify my code. I am beginner in Flutter and now I am doing tasks, the essence of which is the use of Shared Preferenced in the Login Screen and saving the user data in FireBase. When the user first [...] read more
dart
flutter
sharedpreferences
0votes
0answers

_TypeError (type 'String' is not a subtype of type 'int')

Help and explain to me in detail please how can I modify my code. I am beginner in Flutter and now I am doing task, the essence of which is the use of Shared Preferenced in the Login Screen and saving the user data in FireBase. When the user first [...] read more
dart
flutter
sharedpreferences
0votes
3answers

android.content.res.Resources$NotFoundException: Resource ID #0xffffffff. cannot make search view with query

please help. i got this error but don't know what is going on. i tried to make a search view in my fragment. i make this code for menu item <item android:id="@+id/action_search" android:icon="@drawable/ic_search" android:title="search" app:actionViewClass="android.support.v7.widget.SearchView" app:showAsAction="ifRoom|collapseActionView" /> and make this code in my fragment override fun onCreateOptionsMenu(menu: Menu?, inflater: MenuInflater?) [...] read more
android
searchview
0votes
0answers

Flutter:Error with authorization though Google Firebase

I am begginer in Flutter and faced such a problem.I need to make it so that when logging into my application, my mail is shown in the firebase. I kind of did authorization, but errors appear when I click on the button (login with google). Here is my pubspec.yaml: dependencies: [...] read more
firebase
dart
flutter
firebase-authentication
0votes
1answer

Flutter:Error with authorization via Google Firebase

I am begginer in Flutter and faced such a problem.I need to make it so that when logging into my application, my mail is shown in the firebase. I kind of did authorization, but errors appear when I click on the button (login with google). Here is my pubspec.yaml: dependencies: [...] read more
dart
flutter
google-oauth
flutter-dependencies
0votes
1answer

Convert Google Contact ID to Hex to use in URL

Google Contacts now (Jan 2019) issues a long (19 digit) decimal number id for each contact that you create. Unfortunately, as discussed in this question the ID cannot be put into a URL to view the contact easily, however if you convert this decimal number to Hex it can be [...] read more
javascript
python
hex
decimal
0votes
0answers

How can I set a specific (Content-Type) HTTP response header by configuring undertow?

SUMMARY I'm implementing a web service, that is deployed on a Wildfly-15 application server. I'd like to have the Content-Type HTTP response header to include charset=UTF-8. This is necessary for the client to understand my response. DETAILS One of my clients always sends its request without specifying charset in Content-Type. [...] read more
wildfly
undertow
0votes
0answers

initializing std vector at compile time

I have the following code running but how do I now initialize a vector or variable with it. constexpr uint32_t _RtlComputeCrc32( _In_ DWORD dwInitial, _In_reads_bytes_(stLength) const BYTE *pbyData, _In_ INT stLength ) { ULONG crc = 0xFFFFFFFF; while (stLength-- != 0) { pbyData++; // crc = ((crc >> 8) & [...] read more
c++
templates
c++17
stdvector
0votes
1answer

Run method at page start

I have a Statless widget how to run a function when the widget is loaded or started How to run _myFunction when the widget is opened? class Register extends StatelessWidget{ final GlobalKey<ScaffoldState> _registerKey = GlobalKey<ScaffoldState>(); @override Widget build(BuildContext context) { return Scaffold( key: _registerKey, appBar: new AppBar( title: new Text('Register'), [...] read more
flutter
0votes
1answer

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
0votes
0answers

How does a CPU register know it's content is in 2's complement mode (negative) or positive

I have a simple C code: int main(){ int a = -1; long b = 4294967295; return 0; } Compiling it with no optimization and looking at it's assembly using GDB shows the following: 0x0000000100000f90 <+0>: push %rbp 0x0000000100000f91 <+1>: mov %rsp,%rbp 0x0000000100000f94 <+4>: xor %eax,%eax 0x0000000100000f96 <+6>: mov $0xffffffff,%ecx [...] read more
assembly
cpu-registers
twos-complement
0votes
0answers

python calculcate signed crc32 integer to checksum

I have the following string I would like to calculate a checksum for. 3556.5:200:3557.0:2:3556.4:84:3557.4:4:3555.7:6:3557.7:14:3555.1:46:3558.6:21:3552.9:14:3558.7:10:3552.8:194:3558.8:106:3552.7:10:3558.9:10:3552.6:25:3560.2:178:3552.5:4:3560.5:111:3551.7:1:3561.7:1:3551.6:65:3562.5:18:3551.0:103:3562.6:111:3550.7:3:3562.7:3:3550.6:4:3562.8:185:3550.5:1:3563.7:1:3550.3:84:3564.2:1:3550.2:156:3564.8:153:3550.0:82:3565.0:400:3549.7:1:3565.9:60:3548.4:104:3566.1:20:3547.2:177:3566.5:40:3545.9:1:3568.0:20:3545.1:11:3569.4:12:3545.0:71:3570.0:82:3544.9:1:3570.6:4 I do it the following string2 = string.encode('ascii') checksum = zlib.crc32((string2)) This gives me an integer of 3467096777. However, the server provider says it should be -949017128. Additionally, I tried many variants of the string and [...] read more
python
crc32
0votes
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
0votes
2answers

Exit program for fingerprint after 15 seconds of no input on fingerprintsensor PYTHON

:) I have a problem I can't solve myself( I tried a lot with time.time() but I never solved my problem). I would like my program to exit and stop waiting for finger if 15 seconds passed. I would be really happy and grateful if someone knows how to do [...] read more
python
time
fingerprint
0votes
1answer

Android crash on 'boolean com.mapbox.mapboxsdk.maps.Style.isFullyLoaded()' on a null object reference,

Hi I am trying MapBox for navigation and getting crash like this 2019-01-20 19:00:16.331 32005-32005/com.example.mapboxtest E/Mbgl-MapChangeReceiver: Exception in onDidFinishLoadingStyle android.content.res.Resources$NotFoundException: Resource ID #0xffffffff at android.content.res.ResourcesImpl.getValueForDensity(ResourcesImpl.java:225) at android.content.res.Resources.getDrawableForDensity(Resources.java:887) at android.content.res.Resources.getDrawable(Resources.java:827) at android.content.Context.getDrawable(Context.java:626) at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:463) at com.mapbox.mapboxsdk.location.Utils.getDrawable(Utils.java:75) at com.mapbox.mapboxsdk.location.LayerBitmapProvider.generateBitmap(LayerBitmapProvider.java:26) at com.mapbox.mapboxsdk.location.LocationLayerController.styleForeground(LocationLayerController.java:303) at com.mapbox.mapboxsdk.location.LocationLayerController.applyStyle(LocationLayerController.java:109) at com.mapbox.mapboxsdk.location.LocationLayerController.initializeComponents(LocationLayerController.java:92) at com.mapbox.mapboxsdk.location.LocationLayerController.<init>(LocationLayerController.java:84) at com.mapbox.mapboxsdk.location.LocationComponent.initialize(LocationComponent.java:991) at com.mapbox.mapboxsdk.location.LocationComponent.activateLocationComponent(LocationComponent.java:292) at [...] read more
android
maps
mapbox
mapbox-android
0votes
0answers

CupertinoSliverRefreshControl blinks sometimes when Container is returned from builder

In my app I need to provide a pull-to-refresh on one of the screens. I've chosen CupertinoSliverRefreshControl. App's primary color is red, so the navbar and searchbar are colored with it. And also refresh control needs to be colored with red. But when I return Container with color from CupertinoSliverRefreshControl's [...] read more
dart
flutter
pull-to-refresh
0votes
0answers

.Net ASP button with code behind to open PowerShell and run batch file

I have an asp web page in Visual Studio 2017 with an asp button which, when clicked, should run a batch file in Windows PowerShell. The batch file runs NUnit Selenium tests. The code to open PowerShell and run the batch file works in a non-web-based GUI. I am trying [...] read more
asp.net
code-behind
0votes
3answers

What does the appending zero mean in a C assignment statement?

I am writing to inquire a quick question regarding a wired C statement. The following statement is found in libgcrypt 1.7.3, line 680 of mpi/mpi-pow.c. base_u_size |= (precomp_size[k] & ((mpi_size_t)0 - (k == e0)) ); So the appending 0 after mpi_size_t seems so wired to me. I also show the [...] read more
c
0votes
0answers

Trouble running a compiled FORTRAN program.. failing with error trying to open a file at line 61

I have no experience in Fortran having written code in C# and Aurelia. I was interested in a program that designs turbine blades and would have liked to use it to explore a design process however its supplied as a program ready to compile and run. Here is the Dropbox [...] read more
fortran
gfortran
0votes
2answers

Unable to obtain long value from bitwise operation

I need to obtain the output of the following bitwise operation for further processing. Unfortunately anytime I attempt to convert the output to int or long types I get a Number format Exception. How do I ensure the output of a type I can process? String TYPE = "type"; long [...] read more
java
bitmap
bit-manipulation
bitwise-operators
bitmask
0votes
1answer

how to replace the image of SKSpriteNode on click

i am facing issue on replacing the image of SKSpriteNode on click as i am not able access SKSpriteNode in touchesBegan(). i have the location and the node which is getting touched but i am not able to replace the image . i have tried replacing image like this "balloon.texture [...] read more
ios
swift
sprite-kit
skspritenode
0votes
0answers

Reading TDMS file's metadata With C

I have a question about NI's .tdms file reading.... I read the TDMs File Format Internal Structure on NI Website. and i wrote some codes in order to convert .TDMS files into .txt files. (http://www.ni.com/white-paper/5696/en/#toc2) I tried open .tdms file with hex-edit program, Python codes and i got helped by [...] read more
c
labview
0votes
1answer

convert c++ method logic in java by using right data type

I have few fields in C++ defined and using those fields we are making a new value. I need to do similar things in Java by following C++ method. * "text" is defined as uint8_t * "client_id" is defined as uint16_t * "proc_id" is defined as uint8_t * "pod_count" is [...] read more
java
c++
0votes
0answers

Hypervisor.framework 16-bit real mode

How can I use Hypervisor.framework on macOS to emulate a CPU in 16-bit real mode? Specifically, what do I need to do so that the CPU is in real mode as opposed to protected mode? I thought that simply having bit 0 of CR0 unset would be enough but it [...] read more
c
x86
intel
hypervisor
0votes
1answer

ARM - Where does a memory address number actually point to - the top of the address or the bottom?

I was reading up on the LDRB/STRB instructions in ARM and was wondering whether the memory address (as in, the full 32-bit number with which you would refer to an address - not a label or variable created with DEFW) points to the top of a memory address, or the [...] read more
assembly
arm
theory
0votes
0answers

How to instantiate a new object of LoginData inside CreateLoginAsync() without errors

This code have not errors now. But I'm trying to connect with the api and in the HttpResponseMessage response = await client.PostAsJsonAsync"login/", login);the page charges infinitely and the console shows me this: El programa '[672] iisexpress.exe' terminó con código -1 (0xffffffff).I have verified that it is not a problem of [...] read more
c#
asp.net
rest
0votes
0answers

SHA1 Generated Hashes Do Not Match (JS and C#)

I am trying to create the .NET equivalent of Javascript code below. I've tried what I've shared in the ".NET SHA1" section but it generated different hash outputs. I tried translating javascript code into C# (which I've shared as well) which doesn't work either. What am I doing wrong, how [...] read more
javascript
c#
hash
sha1
0votes
0answers

FATFS returns FR_DISK_ERR the second time I use an identical line of code

I am using FATFS to write data to an SD card. It partially works and I am able to write EEPROM data to the SD card. But when I use a different function later on in the code it returns 'FR_DISK_ERR' even though I'm using the same line of code. [...] read more
c
arduino
avr
atmega
fatfs
0votes
2answers

Find programmatically generated TextView's height

I need help finding out the height of a TextView after I create it programmatically. I generate a TextView like this: public TextView drawTextView(String text, boolean center, boolean bold, int topMargin, int leftMargin, int textSize) { View vt = new TextView(getBaseContext()); final TextView textView = new AutoResizeTextView(vt.getContext()); Typeface tf = [...] read more
android
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
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
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

"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
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

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
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

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
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
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
2answers

Add route on OpenBSD for DSL modem on external network

I'd like to be able to access my DSL modem, which is acting as a bridge, from within my local network. I've got a setup like this: {Local network 192.168.1/24} | rl0:192.168.1.250 [OpenBSD Router] rl1:up tun0:pppoe | [Bridge DSL modem IP:192.168.1.254] | {Internet} I'd like to access the Bridge. To [...] read more
networking
router
routing
openbsd
0votes
2answers

CScript Application Error - The instruction at <> referenced memory at 0xffffffff

We have a an error message that is occurring occassionally in our system. The images is available here The instruction at "0x7c82f583" referenced memory at "0xffffffff". The memory could not be read. Click on OK to terminate the program. Any idea what is causing it and how to fix this. [...] read more
memory
-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
-1votes
1answer

How to convert 4 ints (range 0..255) to uint32_t

I have 4 ints, int r = 255, g = 255, b = 255 and a = 255. I would like to convert them to uint32_t. uint32_t c = 0xFFFFFFFF; in a manner uint32_t c = 0x(int)r(int)g(int)b(int)a; Does this require byte operations? read more
c++
-1votes
1answer

What is the problem? Shared Preferences in LoginScreen does not work every time

I'm trying to do Shared Preferences. It should work so that when the user first logged in and entered his password and his login was transferred to Nome Skreen, the next time he logs into the application he will not need to enter his data and Nome Skreen will immediately [...] read more
dart
flutter
sharedpreferences
-1votes
1answer

D3D9 drawing sprites appears to be slow

My application needs to draw many sprites. But somehow this appears to be slow (30 airplanes which are fighting each other, means + ~30 animated rockets and explosions). How can I fix this so it animates smoothly? Thanks for help in advance! Don't know how to approach the problem. struct [...] read more
c++
directx
sprite
directx-9
-1votes
1answer

Signature is not Interop compatible - calling c methods from c#

Im trying to make use of interop functionality to use create a .net wrapper for the c written pigpio library. However i seem to be stuck with the following error: "Cannot marshal 'parameter #2': Signature is not Interop compatible". The C method has the following signature: int gpioWaveAddGeneric(unsigned numPulses, gpioPulse_t [...] read more
c#
c
interop
marshalling
-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
-2votes
2answers

Struct embedding of interfaces, panic: runtime error

I'm trying an example related to struct embedding of interfaces // https://talks.golang.org/2014/go4java.slide#52 // Struct embedding of interfaces // https://play.golang.org/p/SYiZ7M1OEhU package main import ( "bytes" "fmt" "net" ) // net.Conn has Read and Write type loopBack struct { net.Conn buf bytes.Buffer } func (c *loopBack) Read(b []byte) (int, error) { fmt.Println("loopBack [...] read more
go
struct
interface
go-interface
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1answer

Stack and Heap : Is there a single stack and a single heap area in memory and grows to each other ? (x86 linux)

I try to figure things out about stack (stack pointer ESP , EBP ... etc) and heap. As i know the kernel memory space is 1GB at the end of the memory (0xC0000000 to 0xFFFFFFFF) and right above it is the stack memory , so my question is : Is [...] read more
memory
memory-management
linux-kernel
stack
heap
-3votes
1answer

Implementation of a Python encription code in PHP or NodeJS

I am trying to implement a python encription code based on gzip and crypto library but i dont know the equivalent modules or functions in either php or node js from Crypto.Cipher import DES, AES def enclen(p): return ((16 - p % 16) & 0xF) + p + 4 def [...] read more
php
python
node.js
-3votes
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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