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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44 guides for “authentication” · Clear searchHow 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.
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.
How to harden a Linux server: a practical checklist
A public server is probed within minutes of going online. This hardening checklist covers users, SSH, firewalls, updates, fail2ban and monitoring — step by step.
Email DNS explained: SPF, DKIM and DMARC
Want your email to land in inboxes, not spam? Three DNS records — SPF, DKIM and DMARC — are the key. Here's what they do and how to set them.
DNS records explained: A, AAAA, MX, TXT, CNAME, NS
DNS is the internet's address book. Here's a plain-English guide to the record types you'll actually use — A, AAAA, CNAME, MX, TXT and NS — and when to reach for each.
How to set up SSH keys for passwordless, secure login
SSH keys are safer and more convenient than passwords. Learn to generate a key pair, copy it to your VPS, and log in without typing a password — the right way.
The first 10 minutes on a new VPS
A fresh server needs a few essential steps before you do anything else. This checklist walks through updates, a sudo user, SSH keys, a firewall and the basics — fast.
What is a domain registrar, and how do you pick one?
Registrars are the companies that sell and manage domains. Here's what they actually do, how they differ, and what to look for when choosing one.
Deploy your first server in under a minute.
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