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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12 guides for “ram” in Security · Clear search
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.

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 · 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.

Security · 5 min read ·

How to Protect a VPS from Brute-Force Attacks

Bots relentlessly guess logins against every public server. Here's a layered playbook — keys, firewall, rate limits and bans — to make brute-forcing pointless.

Security · 5 min read ·

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.

Security · 6 min read ·

How to Harden SSH on a Linux VPS

A practical, copy-paste guide to locking down the SSH daemon on your VPS — the single most important service to secure on a public server.

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.

Security · 5 min read ·

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.

Security · 3 min read ·

How to disable root SSH login (safely)

Letting root log in over SSH is a needless risk. Learn how to create a sudo user, verify access, and disable root SSH without locking yourself out.

Security · 3 min read ·

nftables firewall basics for Linux servers

nftables is the modern replacement for iptables. Learn its table/chain model and write a clean, readable firewall ruleset for a VPS from scratch.

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