My new article on Linux Namespaces is out!
I create a hostname namespace by hand and dig into the kernel structures behind it.
Spoiler: it’s pointers. Each process points to its namespaces, and the kernel follows them.
@jespino.bsky.social
@jespino.bsky.socialMy new article on Linux Namespaces is out!
I create a hostname namespace by hand and dig into the kernel structures behind it.
Spoiler: it’s pointers. Each process points to its namespaces, and the kernel follows them.
@jespino.bsky.socialToday I'm investigating Linux namespaces, which is a fundamental part of the containers technology.
Same machine, same kernel, same syscalls call, two different answers. We will go deep on how that magic works.
The article will be published tomorrow.
@hugovalters.bsky.socialConfigure subuid/subgid ranges in /etc/subuid and /etc/subgid to run rootless containers via user namespaces on Ubuntu 22.04, RHEL 8+, Fedora 38+. Map container root to https://www.valtersit.com/vault/subordinate-user-and-group-id-range-configuration-for-rootle-5a4e09/ #linux #podman #namespaces
@litespeedtech.bsky.socialLet's look at Namespaces and Bubblewrap performance in an OpenLiteSpeed sandbox environment: blog.litespeedtech.com/2024/02/21/p... #litespeed #openlitespeed #namespaces