Disk Management
Partition, format, and manage disk storage on Linux servers effectively. Category: Linux
Process Management
Control services with systemctl and systemd for reliable process management. Category: Linux
Cron Jobs & Scheduling
Automate tasks with cron jobs and systemd timers for efficient server management. Category: Linux
Linux File Permissions
Master chmod and chown commands to control file access and ownership on Linux. Category: Linux
Linux Command Basics
Essential Linux commands every administrator needs to know for daily operations. Category: Linux
SSH Key Rotation: Replace an Old Key Without Locking Yourself Out
Security Old SSH keys pile up: on laptops you no longer own, in CI systems, on servers of people who left. Rotating means adding a…
UFW and Docker: Stop Containers Bypassing Your Firewall
Security Docker writes its own iptables rules, so a port published with -p is reachable from the internet even when UFW denies it. Here is…
MySQL Users and Permissions: Create a User and Grant Access
Homelab Give every app and person its own MySQL account with only the rights it needs. This page covers the everyday basics: create a user,…
MySQL Setup on Ubuntu 24.04: Install, Secure, First Database
Homelab Install MySQL Server on Ubuntu, lock it down with the security script, and create your first database and user. Ubuntu 24.04 ships MySQL 8.0….
Enable GZIP Compression
Speed up your WordPress sites by enabling GZIP compression on NGINX. Category: Performance