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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9 guides for “world” in Networking · Clear search
How to Diagnose DNS Problems with dig and nslookup
When a domain won't resolve, dig and nslookup tell you exactly why. A practical, example-driven guide to reading their output and finding the real problem.
Port Forwarding vs a VPS: How to Make a Minecraft Server Public
To let friends join, you either port-forward your home router or run a VPS. Here's an honest comparison of both, with the tradeoffs.
How to Add a Custom Domain to a Minecraft Server
Give players a memorable address like play.yourserver.com instead of a raw IP. Here's how to point a domain at a Minecraft server.
MX records and email deliverability: SPF, DKIM and DMARC
Getting email to the inbox is about DNS, not luck. Here's how MX records route your mail and how SPF, DKIM and DMARC keep it out of the spam folder.
Diagnosing 'connection refused' errors
'Connection refused' is one of the most misread errors in networking. Here's what it actually means, how it differs from a timeout, and a step-by-step fix.
How to point a domain at your VPS
Bought a domain and spun up a server? The last step is connecting them. Here's exactly how to point a domain at your VPS with A records — and verify it worked.
Common ports every developer should know (22, 80, 443, 3306…)
You don't need to memorise all 65,535 ports — just the ones that come up daily. Here's the working developer's reference to the ports you'll actually use.
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 check if a port is open (and what to do if it's not)
A service only works if its port is reachable. Learn how to test whether a port is open from your machine and from the internet, and how to fix a closed one.
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