Posts tagged Linux Internals
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fds Are Namespace-Agnostic, Paths Are Not
War stories from building a container runtime in C — the assumptions the Linux kernel quietly refused to honor, why nearly every one slipped past a green test suite, and the tag and error number to check each claim against.
C
Linux Internals
Containers
Namespaces
Debugging
A Container Is a Posture, Not a Primitive
An introduction to minicontainer: an educational Linux container runtime written in C, built one isolation boundary at a time across fifteen git tags. What the series covers, and how to check every claim in it against the source.
C
Linux Internals
Containers
Namespaces
cgroups
Defusing a Bomb That Wanted to Phone Home
The CS:APP bomb lab, defused off-campus: an LD_PRELOAD shim, a seventy-line fake grader, and a walk through all six phases plus the secret one.
C
x86-64
Reverse Engineering
Linux Internals
Networking