Alone·Sep 10System Call How does a program talk to the Kernel?How can these functions request the Kernel to do something?
Valar A·Jun 9Why do you need an OS for running your Applications?Without an OS, Every App Carries Its Own Baggage
Aoi Aioi·Apr 18Four Ways to Steal a Syscall: Binary Rewriting vs. the AlternativesSyscalls are the narrow waist of Linux. Every meaningful thing a process does — opening files, sending packets, allocating memory — funnels…
Issan·Apr 12You Think You Know How a Computer Works? Try Reversing It;)From int 0x80 to kernel rings – what really happens when you call exit(9)?A response icon2A response icon2
InLevel Up CodingbyAlejandro Nadal·Feb 20Can you debug it? — Signal Handler with unexpected behaviorThis is the first edition of “Can you debug it?”, where we test your mettle with weird, small pieces of code which don’t work as they are…
Rajesh Kumar·Jan 22Linux System Calls Deep Dive: Part 4 close() and Resource CleanupLearn why file descriptors leak and how close() actually works. Real debugging examples, strace traces, and the EINTR gotcha. Part 4 of…A response icon1A response icon1
Linux Guide·Jan 10Mastering Seccomp Filters in Production EnvironmentsThe architectural necessity for implementing granular, kernel-level defense mechanisms has never been more pressing, especially when…
Cyber Gee·Dec 23, 2025are the interface between user-space applications and the kernel.1. Process Management
