[DougWebb]

You should also look in your router config to see if it supports any dynamic DNS services. If it does, then you can register a domain name with most any domain registrar, get an account with the dynamic DNS service, and configure the domain registrar to use the dynamic DNS service's NameServers for your domain.

I've glossed over the details quite a bit; the dynamic DNS service will probably have more detailed documentation. But basically what you're setting up is:

1. Your router will determine its public IP regularly, and tell the dynamic DNS service what it is.

2. The dynamic DNS service will update the mapping from your domain name to the correct IP address.

3. You'll be able to use your domain name instead of the IP address in the ssh command. Very handy if your IP changes when you're not at home, and can't look up your public IP.