A curated collection of Linux, BSD, and networking knowledge — written for hands-on learners, system administrators, and anyone who enjoys exploring the core of Unix-like systems.
Dive into Linux fundamentals — from package management and systemd to permissions, shells, and filesystem structure. Includes clear examples and practical commands for everyday use and sysadmin practice.
Learn the BSD way — a clean, consistent Unix philosophy. Covers FreeBSD, OpenBSD, and NetBSD basics, from system layout and configuration to jails, rc scripts, and networking differences from Linux.
Understand how networks actually work — from IP, DNS, and routing to VLANs, VPNs, WireGuard, and IPv6. Designed for hands-on learners who want to build, configure, and troubleshoot real networks.