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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4 guides for “security” in Networking · Clear search
How to Point a Subdomain to a Different App or Port
Run several apps on one VPS, each on its own subdomain — api.yourdomain.com, app.yourdomain.com — using a reverse proxy. DNS plus the Nginx and Caddy configs.
Reading HTTP response headers: a practical guide
Response headers reveal how a site is served, cached and secured. Here's a practical tour of the headers that matter — and what to check when something's off.
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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