Windows error 0xFFFFFFFF, -1

Detailed Error Information

HRESULT analysis^[1]

Flags	Severity	Failure
	Reserved (R)	true
	Origin	Customer 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.
	NTSTATUS	true
	Reserved (X)	true
Facility	Code	4095 (0xfff)
Error Code		65535 (0xffff)

Questions

Signed/unsigned comparisons

I'm trying to understand why the following code doesn't issue a warning at the indicated place. //from limits.h #define UINT_MAX 0xffffffff /* maximum unsigned int value */ #define INT_MAX 2147483647 /* maximum (signed) int value */ /* = 0x7fffffff */ int a = INT_MAX; //_int64 a = INT_MAX; // makes [...] read more

c++

visual-studio-2005

comparison

unsigned

signed

android.content.res.Resources$NotFoundException: Unable to find resource ID #0xffffffff

I hate posting code, and asking why it doesn't work, but I'm at a loss right now. I've tried to run the following class below, and I get an exception in logcat which I can't explain. Even a google search yields little results. Maybe I just don't understand the ecosystem, [...] read more

android

android-viewpager

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

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

Remove padding in Flutter Container > FlatButton

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

flutter

Setting up a Bluetooth PAN

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linux

networking

wireless-networking

bluetooth

pan

REPNZ SCAS Assembly Instruction Specifics

I am trying to reverse engineer a binary and the following instruction is confusing me, can anyone clarify what exactly this does? =>0x804854e: repnz scas al,BYTE PTR es:[edi] 0x8048550: not ecx Where: EAX: 0x0 ECX: 0xffffffff EDI: 0xbffff3dc ("aaaaaa\n") ZF: 1 I see that it is somehow decrementing ECX by [...] read more

assembly

x86

reverse-engineering

RISC-V build 32-bit constants with LUI and ADDI

> LUI (load upper immediate) is used to build 32-bit constants and uses the U-type format. LUI places the U-immediate value in the top 20 bits of the destination register rd, filling in the lowest 12 bits with zeros. I found this in manual, but if I want to move [...] read more

riscv

Java Integer.MAX_VALUE vs Kotlin Int.MAX_VALUE

I noticed, one interesting thing. Java's Integer.MAX_VALUE is 0x7fffffff (2147483647) Kotlin's Int.MAX_VALUE is 2147483647 but if you write in Java: int value = 0xFFFFFFFF; //everything is fine (but printed value is '-1') in Kotlin: val value: Int = 0xFFFFFFFF //You get exception The integer literal does not conform to the [...] read more

java

kotlin

Is gcc reordering local variables at compilation time?

I'm currently reading (for the second time) "Hacking : The Art of Exploitation" and have stumbled on something. The book suggests two different ways to exploit these two similar programs : auth_overflow and auth_overflow2 In the first one, there is a password checking function layed out like this int check_authentication(char [...] read more

gcc

gdb

reverse-engineering

buffer-overflow

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

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

a class method named ._() function in dart?

I've seen this code can anyone please explain to me what the AppTheme._() means, as I've read about its singleton class in dart but I really can't understand how it works. class AppTheme { AppTheme._(); static const Color notWhite = Color(0xFFEDF0F2); static const Color nearlyWhite = Color(0xFFFEFEFE); static const Color [...] read more

flutter

dart

Corrupted NTFS Drive showing multiple unallocated partitions

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external-hard-drive

ntfs

filesystem-corruption

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

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

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

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

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

Walking the NTFS Change Journal on Windows 10

I'm trying to read the NTFS Change Journal but I've noticed that all the example code I can find fails on Windows 10, even though it works on Windows 7. For example, Microsofts own example Walking a Buffer of Change Journal Records works on Windows 7 but when I run [...] read more

winapi

visual-c++

ntfs

deviceiocontrol

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authentication

windows-server-2012-r2

active-directory

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

OpenVPN connection works but no gateway is assigned

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vpn

configuration

openvpn

gateway

open

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c++

How do I get the version of a driver on Windows from C++

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c++

windows

driver

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

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firewall

port-forwarding

iptables

forwarding

firewalld

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

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vpn

ifconfig

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windows-7

directx

direct3d

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

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

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

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

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

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

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

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

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

assembly

x86

qemu

osdev

multiboot

Why convert 0xffffffff to decimal is -1 in C?

I thought the result would be (2**32 - 1) #include <stdio.h> int main(){ unsigned int a = 0xffffffff; printf("the size of int a %d\n",a); return 0; } but it gives me -1, any idea? read more

Black screen while installing Debian

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installation

debian

Error installing IE11 - prerequisite update KB2834140

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windows-7

installation

internet-explorer

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

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

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

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mac

finder

focus

How to use openvpn for browsing

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debian

vpn

openvpn

tunnel

bridged

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

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

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

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freebsd

ipsec

cisco-vpn

vpn-client

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

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nginx

amazon-ec2

amazon-web-services

php-fpm

high-load

How to debug ip xfrm rules

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ipsec

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

Iptables u32 matching nat

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iptables

linux-networking

CentOS reporting lower total memory compared others in AWS

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amazon-web-services

memory

centos7

Windows 2008 R2 services not working

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windows-server-2008-r2

sql-server-2008

service

windows-event-log

Setting up gateway on different subnet than IP address

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networking

routing

windows-server-2012

gateway

Packets not entering FORWARD chain

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networking

iptables

routing

policy-routing

HP P410 ADU (hpacucli) generates empty report

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raid

monitoring

hardware-raid

hp-smart-array

Linux port based routing : reponse packets discarded

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linux

iptables

routing

iproute2

iptables NAT with multiple interfaces

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iptables

nat

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printf

stdint

how can I finish activity from view

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java

android

view

Prove a function is surjective using Z3

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

z3py

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

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python

ctypes

dllimport

memory-mapped-files

Flutter : How to keep user logged in and make logout

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authentication

flutter

Getting null error after fetching data from local db

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flutter

dart

sqflite

File Reference Number in USN returning empty

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c++

windows

debugging

filereference

usn

CubeHash. Pure PHP implementation. Multibyte block issue (CubeHash160+16/32+160-256)

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php

hash

cryptography

sha-3

Does JMeter fully support NTLM Authentication?

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java

jmeter

apache-httpclient-4.x

ntlm

apache-commons-httpclient

Error trying to run here example on Flutter

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flutter

here-api

Vector calling destructors when reallocating

I have a dynamically allocated 3D array of pointers to class: class Foo { public: int a; float b; float c; Foo(int x, float y, float z) { a = x; b = y; c = z; } }; in a class: class Bar { public: Foo ****p_arr; Bar(); ~Bar(); [...] read more

c++

arrays

pointers

dynamic

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networking

windows-10

vpn

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

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windows

networking

ssl

https

openssl

on xeon, does addq require 2 clock cycles?

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

xeon

clockspeed

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

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

linux

boot

mac

kernel-panic

tails

Network interface for VPN connection explanation

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

vpn

ifconfig

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

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

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

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

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

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

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

Linus/ext4/nvme crashes during high io

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

linux

ssd

ext4

nvme

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

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

ntfs

Enable IPv6 in MariaDB in FreeBSD jail

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

mysql

freebsd

ipv6

mariadb

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

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

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

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

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

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

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

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

Change View Color with alpha animation

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

android

android-animation

background-color

Using the right Perl array references with IPC::Run

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

perl

perl-ipc-run

virtual listbox in Swing

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

java

swing

list

virtual

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

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

linux-kernel

x86

virtual-machine

vmware

C++ find range ip addresses by significant bits

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

c++

boost

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

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

gcc

linaro

type 'Color' is not a subtype of type 'ImageProvider<dynamic>'

I am trying out the new XD to flutter plugin. I have tried to export part of the tutorial app, which should be very basic. It results in me just having a single .dart file that should take care of displaying four images and a bit of text. However, I [...] read more

flutter

dart

When assembleDebug Out of Memory error is thrown

So I'm new to flutter and dart.I've made multiple android apps and I am pretty familiar with coding but I just can't get to know flutter. I use Android Studio as Ide and when I try to compile my code , on the assembleDebug part, This error is thrown: c:\b\s\w\ir\k\src\third_party\dart\runtime\vm\zone.cc: [...] read more

flutter

dart

Flutter: i get invalid argument(s) Error in flutter if i want to navigate to detail page

I want to navigate to detail page. But i get invalid argument error. In detail page, i try to get detail information from my online server. If i click on Hot reload button in android studio, the error disappear. Please, How can i do to fix this error ? Screenshoot [...] read more

android

android-studio

http

flutter

dart

memory effective list of integers with fast search and slow insert/delete

I'm trying to find the best data structure for a sorted list of positive integers (millions of elements). Requirements are (in order of importance): 1. Small memory footprint 2. Fast O(log n) search 3. Insert/delete faster than memcpy() I'm thinking about keeping two arrays: one for search and one for [...] read more

java

algorithm

design-patterns

data-structures

LWJGL not showing textures

Having problems showing the textures on my 3D box in LWJGL using slick. Earlier I had the error: WARN:class org.newdawn.slick.opengl.PNGImageData failed to read the data java.lang.UnsupportedOperationException: Unsupported format for this image Saying it couldnt read the image. So I converted the image to 24bit (also tried 8bit) and now i [...] read more

java

opengl

lwjgl

slick2d

Codec and setting for lowest bitrate ffmpeg output

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

audio

ffmpeg

android

mp3

Wireguard tunnel slow and intermittent

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

vpn

wireguard

Debian not detecting NVMe, ASUS Zenbook UX430UA

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

linux

debian

ssd

asus-laptop

nvme

php and zendguard with asterisk / freepbx

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

php5

freepbx

Find cause of BSOD

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

windows-10

bsod

Missing memory in linux ubuntu 16.04 system

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

linux

ubuntu

memory

The system time interval between Arm and Ubuntu

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

linux

ubuntu

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

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

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

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

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

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

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

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

ssl

windows-server-2012

https

web-services

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

TC Filter With BPF and NFTables Packet Marking

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

filter

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

Hyper-V Core Server 2019 ignoring power plan thresholds

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

hyper-v

ups

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

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

windows

scheduled-task

.net

console

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

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

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

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

htb

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

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

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

"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

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

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

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

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

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

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

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

Bad detection in edge Detection opencv android

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

android

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

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

linux

shared-memory

mmap

Raspberry BLE Encryption / Pairing

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

node.js

raspberry-pi

bluetooth-lowenergy

Image become transparent while rotating on canvas

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

android

android-studio

matrix

canvas

viewgroup

Weird UC3 Reset behavior after user page NVRAM usage

I recently need to use in build NVRAM/EEPROM of AT32UC3L0256 to store some configuration data. I finally managed to use the user page NVRAM of the MCU (after days of trial and error and cursing on GCC ignoring noinit directives and fixing and workarounding bugs in ASF as usual) to [...] read more

c++

reset

bootloader

avr32

atmel-uc3

Converting CIDR notation into IP range without other library

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

java

binary

byte

subnet

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

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

flutter

flutter-layout

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

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

flutter

dart

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

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

node.js

visual-studio-2019

'System.Reflection.TargetInvocationException' occurred in mscorlib.dll

I try to add Owin in azure worker role in vs 2019 through this link here i copy everthing from this link but on running i got this error .How I resolve this WorkerRole.cs using System; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Net; using System.Threading; using System.Threading.Tasks; using Microsoft.WindowsAzure; [...] read more

azure-worker-roles

.net-framework-version

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

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

java

android

canvas

android-canvas

x86 sysenter access violation

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

assembly

x86

x86-64

masm

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

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

flutter

plugins

responsive

adobe-xd

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

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

luac

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

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

arm

qemu

initrd

Bitwise xor 0xFFFFFFFF?

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

python-3.x

bit-manipulation

xor

twos-complement

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

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

stm32

dma

adc

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

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

raspberry-pi3

ubuntu-20.04

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

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

c++

visual-studio

cmake

wxwidgets

clion

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

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

python

ctypes

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

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

flutter

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

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

flutter

flutter-layout

STM32F1 write/read flash memory, cortex M3

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

c++

stm32

keil

stm32f1

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

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

c++

windows

process

permissions

atl

How can I display a popup with additional buttons?

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

java

android

xml

android-studio

OS resets on far jump after disabling paging

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

x86

paging

gas

osdev

intel-syntax

Widget not changing on Tap in Flutter

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

android

flutter

flutter-layout

How to pre-define propeties in classes Flutter

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

flutter

Add a new interface

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

netlink

How to make a Card lies between Body in flutter

enter image description here [https://i.stack.imgur.com/a6I89.png] Anybody how to do the layout similar to the image? I am having difficulty on the CardView and it position is lies between the body. I am still consider quite new to Flutter, having some difficulty in UI part. Full code is as below: Widget [...] read more

flutter

flutter-layout

Binary XML file line: Duplicate id , tag null, or parent id with another fragment for androidx.navigation.fragment.NavHostFragment

I am working on an application in which I am having a drawerlayout and inside which I have a fragment.I am trying to use the jetpack navigation but the fragment gets the IllegalArgumentException issue.The code and the issue is as under <?xml version="1.0" encoding="utf-8"?> <layout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" xmlns:bind="http://schemas.android.com/apk/res-auto"> <androidx.coordinatorlayout.widget.CoordinatorLayout [...] read more

android

android-layout

android-fragments

navigation-drawer

picorv32 risc-v implementation in vivado 2018.2

This is the core:https://github.com/cliffordwolf/picorv32 I'm having a problem implementing the core in vivado. I have installed the riscv gnu toolchain and I am sure that it works ok, I modified the Makefile ($TOOLCHAINPREFIX). I ran the makfile's make firmware.hex (from the scripts/vivado folder) and then I ran the make synth_system [...] read more

c++

verilog

hdl

vivado

Akka threads constant in futex_ state -- Is this normal?

I have an Akka program with threads that are spending most of their time in the futex_ state. This is from an Akka program that isn't doing much. I am not familiar with the internals of Akka, so I'm not sure if this is normal or not. F S UID [...] read more

scala

akka

AssemblyScript array access causing Memory Out of Bounds

I am trying to access elements of an Array<u32> in AssemblyScript. I initialize and fill my arrays as follows: let totalSize: u32 = 512; let leaderPtsX: u32[]; let leaderPtsY: u32[]; let leaderPtsType: u32[]; export function createPoints(): void { leaderPtsX = new Array<u32>(); leaderPtsY = new Array<u32>(); leaderPtsType = new Array<u32>(); [...] read more

arrays

assemblyscript

Can't run here-maps sdk Flutter example

I spend a whole weekend trying to run an example of here sdk with Flutter. Tried on both available versions 4.3.0.0 and 4.3.1.0. I followed this https://developer.here.com/documentation/flutter-sdk-navigate/4.3.1.0/dev_guide/topics/quick-start.html Tried with the newer flutter stable version (1.12.13+hotfix.9), tried with the same version of the guide (1.12.13+hotfix.5). I'm just trying to reach anyone [...] read more

here-api

How can x & 0xffffffff produce more than 32 bits?

THE SHORT SUMMARY I would expect n & 0xffffffff to yield a 32-bit number, not more. But it's yielding a 64-bit number. Why? THE DETAILS In an Android (Java) app I have the following line of code: hash = ((hash ^ b) * FNV_PRIME) & 0xffffffff; When logging the value [...] read more

java

bitwise-and

EditText ,Entered text not visible full

A sample code where i need to have a Edit Text in a Grid Layout Programatically .But when the text are entered in the app ,Only the small bottom portion of text is visible .The text is larger than expected. I need the edit text with text as shown in [...] read more

android

android-edittext

STM32 Leaving DFU mode, code doesn't start

So for this question, I'm using stm32l4 device. It is a Cortex M4. I've been developing with stmcubemx and Kiel compiler. I have a program that can jump to the stm32 provided dfu mode. That works great. I can update the code using DfuSe Demo. I've run into this issue [...] read more

stm32

dfu

Edit text created in Grid Layout any Text typed not visible properly

A sample code where i need to have a Edit Text in a Grid Layout Problematically .But when the text are entered ,Only the small bottom portion of text is visible .The text is larger than expected. I need the edit text with text as shown in image which is [...] read more

android

android-edittext

Why are videos in android webview playing in Android 8 and below but not in 9 and above?

I have been working on an android app that plays videos hosted on a remote server in Web-view. The app is working perfectly except on android 9 and 10 releases where its acting like the link to the videos is breaking. see the image showing after attempting to play the [...] read more

javascript

java

android

html

How to publish odom (nav_msgs/Odometry) from MD49 encoders outputs?

I am using MD49 Motor Drive with its motors https://www.robot-electronics.co.uk/htm/md49tech.htm http://wiki.ros.org/md49_base_controller How to subscribe (encoder_l and encoder_r) from md49_base_controller package and publish (vx , vy ,and vth ) as a form odom (nav_msgs/Odometry) ? There are two problem: 1-The first is that the encoders outputs are not correct "the package [...] read more

ros

robot

odometry

ESP32 RC car project issue

im using nipplejjs like virtual joystick by sending json request to esp32 to remote a rc car with to dc motors the front motor is for direction and the back motor for speed the fonction rorat hendle the json request i retrive the (distance , angle , degree ,type ) [...] read more

loops

arduino

esp32

arduino-c++

Toggle between LIGHT and DARK theme (flutter_neumorphic: ^2.0.0)

I use flutter_neumorphic: ^2.0.0 package to give my app a cool look and I like to add a toggle to switch between LIGHT and DARK. Unfortunately I'm new to coding and I can't do this toggle button by my self, can you help me please. Thank you import 'package:babysoundtrips/screens/sound_screen.dart'; import [...] read more

flutter

themes

scrolling to the top when typing on TextField on Flutter

I added TextFormField on SliverPersistentHeaderDelegate. After scroll to the middle/bottom and then typing on to the textField, SliverList automatically come to the top. How do I disable this? Full Code. class MyWidget extends StatelessWidget { static const String route = '/myWidget'; @override Widget build(BuildContext context) { return Scaffold( body: Container( [...] read more

flutter

dart

flutter-sliver

flutter crashing Attempt to invoke virtual method

I'm facing weird issue that make app crashing in production mode and it's happened once time and don't happened if I try same action I have did , so when try add item in firebase it's crashing and if return try same item in same condition maybe didn't crashed but [...] read more

android

firebase

flutter

How to use or set "on Tap" for Bottomnavigationbar

I am really new at flutter. I need a tap on bottomnavigationBar which will open a new page. But where should I use onTap? On Top (body) I have an other Navigation(Tabbarview). Why I dont have an "onTap" inside the BottomnavigationBar bottomNavigationBar: SnakeNavigationBar( style: SnakeBarStyle.floating, backgroundColor: Color(0xffFFFFFF), snakeColor: Color(0xff3f51b5), currentIndex: [...] read more

flutter

dart

"Segmentation fault (core dumped)" Assembly and c linked program

######## # int mycompare( int size, int x[], int y[] ) # .text .global mycompare mycompare: pushl %ebp movl %esp, %ebp subl $4 , %esp movl $0 , -4(%ebp) movl 12(%ebp), %edx # int x[] movl 16(%ebp), %ebx # int y[] mov $0, %ecx ciclo: cmp 8(%ebp) , %ecx je [...] read more

assembly

x86

calling-convention

CubeHash. Pure PHP implementation. Multibyte block issue (CubeHash160+16/32+160-256)

hash

sha-3

How to extract a widget that sets the state

I have a DataTable, and I want to extract the widget because I use it all across my app. The DataTable has the functionality to order the column pressing on the column name. I am able to make work all perfectly, but I am not able to understand how can [...] read more

flutter

dart

How do I project shadows in Arcgis Runtime for Java

I'm using the Esri Arcgis Runtime for Java. I'm creating "waypoints" in 3d space and it's hard to judge their distance from the ground. Adding a shadow would be useful. I've set the time to January noon, but no shadow is shown. The lines and points are Graphic Symbols, not [...] read more

java

opengl

maps

esri

arcgis-java-api

Flutter android App crashes when trying to debug after signing release

I am new to flutter and am building a flutter app as part of a school project. My team and I are building an ios, android, and web app releases and I am tasked with generating and signing my app bundle to release in google play. I was able to [...] read more

java

android

flutter

gradle

apk

WTSQueryUserToken() gives ERROR_PRIVILEGE_NOT_HELD

I have very common bug while call WTSQueryUserToken(). It returns false and GetLastError() show me ERROR_PRIVILEGE_NOT_HELD. I tried set privileges(return OK) but i see same problem calling WTSQueryUserToken. LUID luid; bRet = LookupPrivilegeValue(NULL, SE_TCB_NAME, &luid); if (!bRet) { hr = GetLastError(); return hr; } TOKEN_PRIVILEGES adjTokenPrivileges;// = { 0 }; [...] read more

c++

windows

winapi

Flutter: Firebase Google Auth not working

I've tried building an app with a google login. Actually everything is working except after I have selected my google account it isn't switching to the next side. Moreover it just "reloads" the sign-in page. So how can I solve this problem that I get to the new page after [...] read more

firebase

flutter

firebase-authentication

google-authentication

Use a third party library in C++ Windows MSVC

I am kind of a newbie in C++. I am struggling using a third party library. I am sorry if this sounds obvious to many. However, if anyone could help that would be nice. Thanks a lot I am trying to compile and use a third party library called XXXX. [...] read more

c++

windows

cmake

clion

linkage

Flutter Drop DownMenuItem Widget

I want to develop a drop down button in Flutter. But I am getting Following Error. ════════ Exception caught by widgets library ═══════════════════════════════════════════════════════ The following NoSuchMethodError was thrown building DefaultTextStyle(debugLabel: (englishLike body1 2014).merge(whiteMountainView body1), inherit: false, color: Color(0xffffffff), family: Roboto, size: 14.0, weight: 400, baseline: alphabetic, decoration: TextDecoration.none, softWrap: wrapping [...] read more

flutter

drop-down-menu

flutter-layout

slow hashing (sha256) on uboot 2009 (iMX25 processor)

Below calculation is done with uboot (2009 an older version) on iMX25 processor. I am running sha256_process() function (sha256.c) under uboot to process 50Mbytes of data to get the hash. It takes more than 100sec to complete the calculation. While the same hashing takes no time if run with openssl [...] read more

hash

u-boot

firebase database snapshot crashes when i add 2 datasnapshots to look after

i am using firebase database and wanted to match a value (the schoolcode) of the user being added to contacts with current users value ( schoolcode) and when i added the code user1.getSchoolCode it started crashing any ideas? if i pass just a simple string like if (user.getSchoolcode().equals("001")) { users.add(user); [...] read more

android

firebase-realtime-database

AMD Ryzen 5 3600 + Ubuntu 20.04 problems

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

acpi

amd-ryzen

core

Can not use full capacity of installed ram

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

memory

motherboard

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

Disable/pause AHK script while game is minimized

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

script

autohotkey

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

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

linux

boot

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

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

crash

aix

jvm

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

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

linux

partitioning

root

yocto-project

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

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

dell-latitude

xubuntu

docking-station

thunderbolt

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

Cannot down-clock AMD GPU on Manjaro

So, I have an RX590 FatBoy, which albeit very nice comes factory overclocked which is bad, since it's cooling isn't up to par. On Windows, I lowered the voltages via the Catalyst app and voila - all overheating problems were gone while retaining all the performance I needed. On Manjaro [...] read more

linux

overclocking

manjaro

amd-graphics-card

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

UBI layout volume not found

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

linux

embedded-linux

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

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

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

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

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

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

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

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

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

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

ubuntu-12.04

ssl

postfix

dovecot

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

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

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

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

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

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

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

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

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

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

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

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

Client object identifier in BIND 9 query logs

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

bind

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

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

centos6

lvm

clonezilla

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

Using tc filter together with Snort

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

snort

Samsung NVMe disappears when server on average to high load

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

xen

glusterfs

supermicro

pci-express

nvme

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

"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

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

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

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

networking

ipsec

strongswan

bug

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

ipfw dummynet per ip fair traffic shaping

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

firewall

freebsd

ipfw

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

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

linux

networking

nginx

iptables

docker

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

My Ubuntu machine is 10.0.0.15, my Windows machine is 10.0.0.10. My gateway, that routes the Internet traffic to the LAN is 10.0.0.1. When I ping the gateway from my Windows machine everything is fine - I get every single packet back. Same holds true, when I ping the Ubuntu machine [...] read more

networking

linux-networking

ipsec

ubuntu-18.04

icmp

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

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

iptables

ipvs

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

"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

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

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

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

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

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

postfix

smtp

vps

dovecot

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

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

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

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

arduino

infrared

How to make the list view builder size to minimum

* I'm using list view builder inside a flexible widget with fit:FlexFit.loose but it occupying all the available space below, my requirement is, that list view builder need to take the minimun space(required space) if there are less items. * I tried with below code Dart pad Reference Code : [...] read more

flutter

dart

Why doesn't my gradient noise generator work?

I tried to make a program that generates gradient noise for terrain generation. It's supposed to print array of numbers between 40 and 99 but it stops on this part: for(int k=16; k>1; k/=2) for(int y=Y; y<Y+16; y+=k+1) for(int x=X; x<X+16; x+=k+1) { tab[y+k/2][x]=rand()%(max(tab[y][x],tab[y+16][x])-min(tab[y][x],tab[y+16][x]))+min(tab[y][x],tab[y+16][x]); tab[y][x+k/2]=rand()%(max(tab[y][x],tab[y][x+16])-min(tab[y][x],tab[y][x+16]))+min(tab[y][x],tab[y][x+16]); tab[y+k/2][x+k/2]=rand()%(max(tab[y][x],tab[y+16][x+16])-min(tab[y][x],tab[y+16][x+16]))+min(tab[y][x],tab[y+16][x+16]); } When I remove [...] read more

c++

noise-generator

switching between functions using an IR remote

I have bought a WS2812B Led Strip. I'm trying to controll it with a IR remote. it is all controlled by a arduino uno. I know the leds work and i know the remote works. I'm trying to pre-program a few animations on the remote. The code below is as [...] read more

arduino

arduino-uno

fastled

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

Behaviour of __shfl_down_sync operation

My kernel for warp reduce looks like below #include <stdio.h> __global__ void reduce(int* var ) { *var += __shfl_down_sync(0xffffffff, *var, 16,32); *var += __shfl_down_sync(0xffffffff, *var, 8,32); *var += __shfl_down_sync(0xffffffff, *var, 4,32); *var += __shfl_down_sync(0xffffffff, *var, 2,32); *var += __shfl_down_sync(0xffffffff, *var, 1,32); } int main() { int c=22; int *dev_c; cudaMalloc( [...] read more

cuda

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

Coding help requested

Hey so i started trying to make a project with my arduino (i dont really know how to code) and i just keep getting errors with my code is someone able to help me? here is what i have #include <SPI.h> #include <MFRC522.h> #include <IRLibAll.h> #include <Servo.h> #define SS_PIN 10 [...] read more

arduino

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

Comments

Sources

https://msdn.microsoft.com/en-us/library/cc231198.aspx

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Windows error 0xFFFFFFFF, -1

Detailed Error Information

HRESULT analysis[1]

Questions

HRESULT analysis^[1]