Unfortunately, no.
> I have a feeling this is not possible at present....and anything along these
> lines would obviously have to have a secure way of identifying specific
> machines.
I used to have a dynamic IP address until my ISP switched me over. What
I used to do was, as soon as the connection was back up, send email to
certain people who needed to have 24-hour-a-day access to the box, and
tell them my new IP address. It's slow, but it works.
-- Ed Carp, N7EKG Ed.Carp@linux.org, ecarp@netcom.com 214/993-3935 voicemail/digital pager 800/558-3408 SkyPager Finger ecarp@netcom.com for PGP 2.5 public key an88744@anon.penet.fi"Past the wounds of childhood, past the fallen dreams and the broken families, through the hurt and the loss and the agony only the night ever hears, is a waiting soul. Patient, permanent, abundant, it opens its infinite heart and asks only one thing of you ... 'Remember who it is you really are.'"
-- "Losing Your Mind", Karen Alexander and Rick Boyes