Ubuntu
Switch Default Java Version on Ubuntu / Debian
When multiple Java versions are installed on the same system, only one can be the default. The wrong…
Category
Ubuntu
Ubuntu
Install Java 25 (JDK 25) on Ubuntu 24.04 / 22.04
JDK 25 landed as the next long-term support release with eight years of patches ahead of it (through…
Docker
Run Docker and Podman Containers as systemd Services
Containers are stateless by design. Kill one, and it stays dead until something brings it back. That “something”…
Linux Tutorials
Install PowerDNS and PowerDNS-Admin on Ubuntu 24.04
PowerDNS Authoritative Server is one of the more capable open-source DNS servers available, particularly when you need database-backed…
How To
Monitor DNS Servers with Prometheus and Grafana
DNS is one of those services that works perfectly until it doesn’t, and when it breaks, everything breaks.…
Debian
Debian 13 vs Ubuntu 24.04 vs Rocky Linux 10 Comparison
Choosing between Debian 13, Ubuntu 24.04 LTS, and Rocky Linux 10 is one of those decisions that shapes…
Desktop
Ubuntu vs Linux Mint: Which Desktop Linux to Choose
Linux Mint exists because some people looked at Ubuntu and thought, “close, but not quite.” Built directly on…
Linux Tutorials
Ubuntu 24.04 vs Ubuntu 22.04: What Changed and Should You Upgrade
If you’re running Ubuntu 22.04 LTS servers or desktops in production, the question of whether to upgrade to…
Desktop
Snap vs Flatpak vs AppImage: Linux Package Formats Compared
Every Linux distro ships its own package manager, and that fragmentation has been the platform’s biggest headache for…
AI
Install pgvector on PostgreSQL 17 (Rocky Linux 10 / Ubuntu 24.04)
pgvector turns PostgreSQL into a vector database. If you already run PostgreSQL for your applications, you can store…
Cheat Sheets
SSH Commands Cheat Sheet for Linux SysAdmins
A quick reference of OpenSSH commands and options for daily Linux and Unix system administration. Covers connections, key…
How To
BIND vs Dnsmasq vs PowerDNS vs Unbound [Benchmark]
Picking a DNS server for your infrastructure comes down to what you actually need it to do. A…