Linux
Install Caddy Web Server on Ubuntu 26.04 LTS
Install Caddy 2.11 on Ubuntu 26.04 with automatic HTTPS via the internal CA, static file serving, and a…
Author
Klinsmann Öteyo
Linux
Install Postfix Mail Server on Ubuntu 26.04 LTS
Install Postfix 3.10 and Dovecot 2.4 on Ubuntu 26.04 for an internal mail server with TLS, SASL auth,…
AI
Install Ollama on Ubuntu 26.04 LTS with Open WebUI
Local LLMs have moved from “nice demo” to “thing you actually run on a Linux box.” Ollama is…
FreeBSD
Configure PF Firewall on FreeBSD 15: NAT, Queues, Load Balancing
PF is one of the reasons people stay on FreeBSD once they try it. It’s a stateful packet…
FreeBSD
ZFS Snapshots, Send/Recv, and Disaster Recovery on FreeBSD 15
If your backup strategy is a daily rsync job, ZFS on FreeBSD 15 will make you feel a…
Linux Tutorials
How To Set Up SSH Key Authentication on Ubuntu 26.04 LTS
Passwords on SSH are a bad idea. Brute-force bots hammer port 22 around the clock, and even a…
Containers
Run Greenbone Vulnerability Management (GVM) in Docker
Greenbone Vulnerability Management (GVM), built on the OpenVAS scanner engine, is one of the strongest open-source options for…
How To
Install Nagios Core on Ubuntu 26.04 LTS
Nagios Core has been monitoring infrastructure since before Kubernetes existed. It’s not the flashiest dashboard, but it catches…
DevOps
Install Terraform / OpenTofu on Ubuntu 26.04 LTS
The IaC landscape split in 2023 when HashiCorp moved Terraform from the Mozilla Public License to the Business…
Databases
Install MySQL 8.4 on Ubuntu 26.04 LTS
Ubuntu 26.04 LTS ships with both MySQL 8.4 and MariaDB 11.8 in its default repositories. If you need…
Linux Tutorials
Brute Force Attacks with Hydra on Kali Linux
Weak passwords are still the easiest way into most systems. Hydra is the tool that proves it. Point…