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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7 guides for “value” 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 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 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 generate a strong password (and why length beats complexity)
Forget swapping letters for symbols. The single biggest factor in password strength is length. Here's how to generate passwords attackers can't crack.
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