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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20 guides for “headers” · 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 · 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.

Email · 6 min read ·

How to Set Up DKIM on a Self-Hosted Mail Server

Generate a DKIM key, publish it in DNS and sign outgoing mail on your own Postfix server with OpenDKIM. The full command-by-command walkthrough.

Networking · 5 min read ·

How to Point a Subdomain to a Different App or Port

Run several apps on one VPS, each on its own subdomain — api.yourdomain.com, app.yourdomain.com — using a reverse proxy. DNS plus the Nginx and Caddy configs.

Email · 6 min read ·

How to Set Up Business Email on a Custom Domain

Get professional you@yourdomain.com email working, whatever your options — managed provider or self-hosted. The DNS records, the trade-offs, and the setup path.

Email · 6 min read ·

How to Set Up Reverse DNS (PTR) for a Mail Server

A missing or wrong PTR record is the fastest way to get your mail server's email rejected. Here's how reverse DNS works and how to set the PTR correctly.

Security · 5 min read ·

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.

Tutorials · 4 min read ·

How to Install code-server (VS Code in the Browser)

Run VS Code in your browser from your VPS: install code-server on Ubuntu 24.04, secure it behind Nginx with HTTPS, and code from anywhere.

Tutorials · 4 min read ·

How to Host a Static Website with Nginx

Serve a fast static site — plain HTML or a built React/Vue/Hugo bundle — with Nginx on Ubuntu 24.04, with correct caching and HTTPS.

Tutorials · 4 min read ·

How to Deploy a FastAPI App with Uvicorn and Nginx

Ship a FastAPI app to production on Ubuntu 24.04 using Uvicorn workers under Gunicorn, a systemd service, and an Nginx reverse proxy.

Tutorials · 4 min read ·

How to Deploy a Flask App with Gunicorn and Nginx

Take a Flask app to production on Ubuntu 24.04: a virtualenv, Gunicorn as the WSGI server, a systemd service, and an Nginx reverse proxy.

Control Panels · 4 min read ·

How to Install Portainer to Manage Docker

Portainer gives Docker a clean web UI: containers, images, volumes, logs, and Compose stacks in your browser. Install it securely on a VPS.

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