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Difference between Daemon and Upscript for Gunicorn in Django Production
I am deploying a Django site in production and now from a week I couldn’t get Gunicorn script in /etc/init/project.conf to bind Nginx no matter what I do inside a Django virtual environment and under newly created user djagno at location /home/Django/project/bin/gunicorn. I need to know that can I run a…
unexpected behaviour of ACL linux [closed]
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Linux Map many internal IPs to one external IP [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. This question does not appear to be about a specific programming problem, a software algorithm, or software tools primarily used by programmers. If you believe the question would be on-topic on another Stack …
Copy file only after all directories are copied
I have a folder A. It contains another folders data and opt, which contains many folders and files. And a complete.txt file, which denotes all files in data and opt are correct. I need to copy folder A completely. But the complete.txt file should copy only after all other files and folders are copied. Is ther…
When should syscall function be used instead of glibc wrapper?
man page of syscall says, “it is useful when there is no wrapper function in c library”. If wrapper function is available, Is it always better to use wrapper function ? If not, when should prefer syscall over it? Answer Never. The only situation where you should ever consider using syscall() is to…
libelf corrupts ARM elf binaries
I’m trying to manipulate ARM elf binaries on linux using the libelf library without success. Even a minimal test-case corrupts my binaries, and I don’t know why. Here is my minimal test-code which reads an elf-file and then simply writes it back: If I run this code on a ELF 64-bit x86-64 executabl…
linux get specific fields from several files
I have several files starting with the string “file” then a number (file1, file2, etc). The content of these files is similar and looks like this For each file, I want only keep the index of the element and the 2 numeric fields just after coordinates (in the same file or in another file): file1: W…
Generate log4j timestamp format in linux date
I want to mimic the format used in log4j for timestamps using the linux date (just some quick scripting) On log4j the format is defined as %d{dd MMM yyyy HH:mm:ss,SSS} That would translate into lines like: 2016-03-10 07:01:09,778 2016-03-10 07:01:09,784 Can this be accomplished in date? The closer I got was u…
Pointers given from user space to kernel space are null
Sorry if this question has been asked before as it seems kind of basic, but I can’t find it anywhere on this site. I’m doing OS programming with linux (debian) and I’m trying to give a pointer from my user space to my kernel space function. Namely in the userspace I do and in the kernel spac…