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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89 guides for “security” · Clear search
Tutorials · 6 min read ·

Essential Linux Commands Every VPS Owner Should Know

New to the command line? This is the practical toolkit — navigation, files, permissions, processes, services, networking and disk — that runs a VPS day to day.

Security · 6 min read ·

How to Set Up a Firewall for a Game Server

Game servers need specific ports open and everything else shut. Configure UFW to expose only your game's ports, protect RCON, and cut attack surface.

Tutorials · 5 min read ·

How to Tune Linux Performance for a Busy Server

When traffic climbs, defaults hold you back. Tune file limits, network buffers, sysctl parameters and services to squeeze more out of your VPS.

Tutorials · 6 min read ·

How to Create a Non-Root Sudo User on a VPS

Working as root all the time is dangerous. Create a dedicated sudo user, give it your SSH key, and adopt least-privilege as your default way of working.

Security · 5 min read ·

How to Scan a Linux Server for Malware (rkhunter, ClamAV)

Even hardened servers get probed. Learn to scan for rootkits and malware with rkhunter and ClamAV, read the results, and respond to a real detection.

Security · 5 min read ·

How to Manage Secrets and Environment Variables on a VPS

Hardcoded API keys and passwords in code are a breach waiting to happen. Learn to store secrets in env files, systemd, and vaults — the right way.

Security · 5 min read ·

How to Secure Docker Containers

Containers aren't secure by default. Run as non-root, drop capabilities, limit resources, scan images and lock down the daemon on your VPS.

Tutorials · 5 min read ·

How to Set Up Automated Backups on a VPS

A backup you never tested isn't a backup. Build an automated, offsite, restorable backup routine for files and databases with rsync, cron and the 3-2-1 rule.

Security · 5 min read ·

How to Secure a Self-Hosted WordPress Site

WordPress powers a huge share of the web, which makes it a huge target. Harden your self-hosted install at the server, app, and login layers.

Security · 5 min read ·

How to Secure a MySQL Database

An exposed or default-configured database is a breach waiting to happen. Lock down MySQL/MariaDB: bind to localhost, strong users, least privilege and TLS.

Security · 5 min read ·

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.

Security · 6 min read ·

DDoS Protection Basics for a VPS

What a DDoS attack actually is, what you can mitigate at the server level, and where you genuinely need upstream protection. A realistic primer.

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