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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9 guides for “configuration” in Security · Clear search
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.
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.
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.
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 Set Up a UFW Firewall on Ubuntu
UFW makes Linux firewalling approachable. Learn to allow only the ports you need, set default-deny, rate-limit SSH, and verify your rules.
How to Set Up SSH Key Authentication and Disable Passwords
Stop relying on passwords. Generate an SSH key pair, install your public key on the VPS, and turn password logins off for good.
How to Self-Host Vaultwarden Behind an Nginx Reverse Proxy
Already run Nginx? Here's how to put Vaultwarden behind it properly — real config, Let's Encrypt TLS, WebSocket support and the security headers that matter.
How to Get a Free SSL Certificate with Certbot
Secure any site with a free, auto-renewing Let's Encrypt certificate using Certbot on Ubuntu 24.04 — for Nginx or Apache.
How to set up fail2ban to stop brute-force attacks
fail2ban watches your logs and bans IPs that keep failing logins. Learn to install it, protect SSH, tune ban times, and add jails for web services.
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