I've just updated my DIY secure pseudo-DDNS setup using ssh article/HOWTO a bit, in order to make it simpler to set up (no more extra scripts required) and a bit more secure (by using command= and no-port-forwarding,no-X11-forwarding,no-agent-forwarding in the /home/user/.ssh/authorized_keys file, for instance).

If you've considered employing such as solution please revisit the article for updated instructions.

Here's a quick HOWTO for setting up your own secure pseudo-dynamic DNS (DDNS) server.

It's not a "real" DDNS service, i.e. you won't be able to use standard DNS tools or protocols to talk to the server, but it covers 98% of all functionality I expect from a service such as DynDNS or similar ones: It tells me the IP address of a certain box which doesn't have a static IP address (e.g. my home-server).

Requirements

You'll need: