Learn about finger, a forgotten Internet protocol allowing you to find out who is logged in on a server!
Ever wondered how to authenticate on a custom SSH shell using the user's public key? You're at the right place!
Ever wondered why in C, main() returns an int? Here's my answer to that question!
How did people back in the 90s installed Linux on their machines? Here's how I did on a PC from 1993, the IBM Thinkpad 750C!
How much do you know about `stdarg.h`? This post will give you some clues about how what's in it works.
Ever wanted to make a shell service, just because it's cool ? Here's how I did mine!
Ever wondered if you could customize libc FILE streams? Here's how to do it with the GNU libc!