11 docs tagged with "linux"

A practical comparison of four major Linux filesystems — ext4, XFS, Btrfs, and ZFS — covering journaling vs copy-on-write, extent strategies, metadata overhead, and crash consistency.

A hands-on lab for creating a logical disk using a loopback device, formatting it with ext4, and exploring the initial filesystem structures like lost+found, the superblock, and metadata overhead.

Step-by-step walkthrough of process creation, execution, and termination, with hands-on examples.

A step-by-step lab on ext4 internals. Create files, inspect their inodes and extents, force fragmentation, and watch what happens to metadata before and after deletion.

A deep dive into how a network packet travels from the NIC through DMA, the RX ring, interrupt handling, the Linux network stack, and finally to a user-space application.

Files deleted with `rm` don’t vanish instantly. Ext4 leaves behind traces — shadows on disk — that can sometimes be recovered with tools like debugfs. Let’s look behind the curtain.

A narrative walkthrough of what happens when you write a file to disk (through the page cache, extents, and journaling) and deletion with `rm`. Think "Lord of the Rings," but for inodes.

A practical guide for diagnosing and fixing PulseAudio issues on Ubuntu, including D-Bus address conflicts and unreliable device enumeration. Covers key configuration files, common errors, and effective recovery steps.

A deep dive into what makes a true daemon process on Unix-like systems. This article explains the proper steps to daemonize a process—forking, detaching, session creation—and debunks common misconceptions around using subshells or `source`.

A deep dive into the architecture, tools, pros, and pitfalls of X11 and Wayland — the two major display server protocols on Linux. Learn when to use each and how they impact your development experience.