Welcome to MyDNS
Free dynamic DNS hosting — serving the community since 2003
Most home internet connections get a dynamic IP address from the ISP — it changes every time your router restarts or your lease expires. That makes it impossible to reach your home server, camera, or NAS by IP alone, because the address keeps moving.
Dynamic DNS solves this by giving you a fixed hostname (like yourname.mydns.se) that always points to your current IP. A small script on your side calls our update URL whenever your IP changes, and we take care of the rest. Within minutes your hostname resolves to the new address — no manual work required.
Dynamic DNS
Replace long, forgettable ISP hostnames with a clean yourname.mydns.se. Perfect for home servers, game servers, remote access, IP cameras, and more.
SMTP Port Forwarding
ISP blocking port 25? We forward mail traffic on your mydns hostname to your server on any port you choose. Works with custom domains too.
Simple Setup
Register a hostname, add one line to your crontab, and you're done. No software to install, no client application needed — a simple HTTP request is all it takes.
100% Free
No ads, no premium tiers, no forced upgrades. We've been running this service free of charge since 2003 and we intend to keep it that way.
- Register — pick a hostname like myserver.mydns.se and enter your email.
- Set up updates — add a cron job or scheduled task that calls your personal update URL.
- Done — your hostname now always resolves to your current public IP.
That single command is all your router or server needs to run periodically.