Join the waitlist

~/tutorials $

Linux server tutorials

Step-by-step tutorials for a Linux server: VPNs, web servers, databases, containers, security and backups. Each one names the distributions it was tested on.

RSS feedTasks in the VPSNine panel are in the help center

2 of 45 tutorials in Security tested on Debian 13 Stable

  1. How to create a sudo user and disable root login on Ubuntu and Debian

    Add a normal user with sudo rights on Ubuntu or Debian, give it your SSH key, then stop root logging in over SSH without locking yourself out.

    beginner · 15 min · Ubuntu 24.04 LTS, Debian 13 Stable

  2. How to install CrowdSec on Ubuntu and Debian

    Install the CrowdSec engine and its nftables firewall bouncer, watch SSH and nginx logs, allowlist your own addresses, and see what it blocks.

    intermediate · 20 min · Ubuntu 24.04 LTS, Debian 13 Stable

Be first when orders open

Join the waitlist and we'll send you one email when VPSNine launches. Pick a plan if you already know which one you want, and we'll size the first servers around it.

  • One email, on launch day
  • Monthly or yearly, no lock-in
  • 14-day money-back guarantee

We'll only email you about the VPSNine launch. No sharing, and every email tells you how to unsubscribe. Privacy