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Linux administration, containers and open-source infrastructure.
A worked deployment uses a Dockerfile USER instruction and runs the application as UID 1001. An audit of the host still shows a rootful Docker daemon. The team assumed the Dockerfile changed both processes. What boundary did the instruction actually change?
I'm trying to run some code that uses Qt GUI, but I keep running into this error that's preventing me from proceeding. I'm running Ubuntu 21.10, and Python 3.9.7. My code is as such. This is the error I get: qt.qpa.plugin: Could not find the Qt platform plugin "wayland" in "/home/peepo/.local/lib/python3.9/site-packages/cv2/qt/plugins" I went to the folder i
Consider this empty program: int main() { return 0; } If I compile it with C++ with g++ main.cpp && strace ./a.out , and analyze the output with strace , I observed that the last lines of the output are (you can add -O3 that the effect is the same): mprotect(0x7f71af154000, 45056, PROT_READ) = 0 mprotect(0x7f71af38b000, 4096, PROT_READ) = 0 brk(NULL)
I have newly installed Ubuntu 22.04 LTS recently and I found that every time when I using apt to install or update packages, it will ask me about Which service should be restarted ? , I don't konw which should be restared and actually I don't want to restart any service when I'm using it. This annoys me and I want to know how to disable this when using apt i
I experienced this issue on Ubuntu 22.04 Jammy. After installing Docker Desktop, following the instructions on the official documentation , and meeting system requirements including having virtualization support, I am unable to launch the Docker Desktop GUI. I tried launching it from the applications menu but nothing. As an alternative to launching Docker De
I was use command sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/$(lsb_release -cs) pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list && apt update' But I was got this Err:2 https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/n/a pgadmin4 Release 404 Not Found [IP: 87.238.57.227 443] Hit:3 https://community-packages
I am getting following error when I am building my application. Test suite failed to run A jest worker process (pid=2439) was terminated by another process: signal=SIGKILL, exitCode=null. Operating system logs may contain more information on why this occurred. at ChildProcessWorker._onExit (node_modules/jest-worker/build/workers/ChildProcessWorker.js:366:23)
The Problem Recently on Linux Kernels 6.6.6 and higher it was discovered that thread sanitizer will always lead to this error : FATAL: ThreadSanitizer: unexpected memory mapping 0x5c9bd4d2b000-0x5c9bd4d4b000 I can reproduce this by writing a hello world example in C #include <stdio.h> int main(void) { printf("Hello, World!\n"); } And compiling it with
I know that the restrict qualifier in C specifies that the memory region pointed by two pointers should not overlap. It was my understanding that the Linux (not SUS) prototype for memcpy looks like - void* memcpy(void *restrict dest, const void *restrict src, size_t count); However, when I looked at man7.org/memcpy it seems that the declarations is - void *m