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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18 guides for “ports” in Security · Clear search
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.
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.
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.
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.
How to Add Two-Factor Authentication to SSH
Add a time-based one-time code on top of your SSH key for defence in depth. Set up Google Authenticator PAM without locking yourself out.
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 Install and Configure fail2ban
fail2ban watches your logs and automatically bans IPs that fail to log in too many times. Here's how to install it and write custom jails.
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 Self-Host a Password Manager on a VPS
Which self-hosted password manager should you run, and how? Compare Vaultwarden, KeePass sync and Passbolt, then deploy your pick on a VPS with HTTPS.
How to Self-Host Vaultwarden (Bitwarden-Compatible) on a VPS
Run your own password vault with Vaultwarden, a lightweight server that works with every official Bitwarden app. Docker install with HTTPS in minutes.
How to Set Up an OpenVPN Server on a VPS
OpenVPN is the compatibility king of VPNs. This guide uses a proven installer to stand up a server on a VPS and export client profiles in minutes.
Deploy your first server in under a minute.
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