The Nxeon Blog
Guides for people who run their own servers.
Straight-talking tutorials and comparisons on VPS hosting, game servers, Linux and security. No fluff, just what actually works. 346 guides from the team that runs the servers.
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6 guides for “automation” in Security · Clear search
How to Set Up Automatic Security Updates on Ubuntu
Unpatched software is the top cause of server compromise. Configure unattended-upgrades so security patches install themselves — safely and unattended.
How to Add Two-Factor Authentication to SSH
Add a time-based one-time code on top of your SSH key for defence in depth. Set up Google Authenticator PAM without locking yourself out.
How to Disable Root Login on a VPS
The root account is every attacker's first guess. Learn to create a sudo user and disable direct root login over SSH — safely, without locking yourself out.
How to Harden SSH on a Linux VPS
A practical, copy-paste guide to locking down the SSH daemon on your VPS — the single most important service to secure on a public server.
Free SSL certificates on your VPS with Let's Encrypt
HTTPS is free and automatic. Here's how to issue a Let's Encrypt certificate on your VPS, set up auto-renewal, and never see an expiry warning again.
How to check an SSL certificate's expiry and validity
An expired certificate breaks your site instantly. Learn how to check a certificate's expiry, chain and validity from the browser, the command line, and online.
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