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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110 guides for “ubuntu” · Clear search
Tutorials · 6 min read ·

How to Check and Free Up Disk Space on Linux

A full disk breaks databases, deploys and logins. Learn to find what's eating your space with df and du, and safely reclaim it — logs, caches and old kernels.

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 · 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 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 Monitor a Linux VPS (htop, netdata and more)

You can't fix what you can't see. Learn the essential Linux monitoring tools — from quick htop checks to a full netdata dashboard with alerts.

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.

Tutorials · 5 min read ·

How to Create a Swap File on a Linux VPS

Small VPS plans run out of RAM fast. A swap file gives the kernel breathing room and prevents the OOM killer from killing your app. Here's how to add one.

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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