Auto-notify remote user of IP address change?

[David Powell <moondrake@optusnet.com.au>]

Hi All,

Sorry if this has been asked and answered.

I'm installing a DB server into a clients office, and I want to be able 
to set up remote ssh access to the box from home.

The glitch is that the client's ADSL internet access has a dynamic IP 
address.  I wondered if anyone knew of any good ways that I can get the 
debian box (which will be the DB server - and the only one I've access 
to) to check what IP address the office gets, and automatically e-mail 
me (or something) when it changes?

The full setup for the office is:

         Internet
             |
             |
        Modem/Router
             |
            / \
           /   \
          /     \
      Debian  Windows
      Server  desktops

My setup at home is similar (though I've got linux desktops) and I I've 
tried to get the IP address that the modem is assigned, but the only way 
I've been able to is by visiting internet sites (like shields up) that 
report that info back.

Any clues greatly appreciated.

Cheers,

David

--
David Powell
Information Systems Developer
Moondrake Trust
e: moondrake at optusnet dot com dot au