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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40 guides for “monitoring” · Clear searchCommon ports every developer should know (22, 80, 443, 3306…)
You don't need to memorise all 65,535 ports — just the ones that come up daily. Here's the working developer's reference to the ports you'll actually use.
How to harden a Linux server: a practical checklist
A public server is probed within minutes of going online. This hardening checklist covers users, SSH, firewalls, updates, fail2ban and monitoring — step by step.
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.
nftables firewall basics for Linux servers
nftables is the modern replacement for iptables. Learn its table/chain model and write a clean, readable firewall ruleset for a VPS from scratch.
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