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From: Sean Cavanaugh <millenia2000@hotmail.com>
To: "'Robert Huff'" <roberthuff@rcn.com>, "'Matthias Apitz'" <guru@unixarea.de>
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Cc: freebsd-questions@freebsd.org
Subject: RE: IP -> e-mail
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> -----Original Message-----
> From: owner-freebsd-questions@freebsd.org [mailto:owner-freebsd-
> questions@freebsd.org] On Behalf Of Robert Huff
> Sent: Wednesday, June 06, 2012 9:18 AM
> To: Matthias Apitz
> Cc: freebsd-questions@freebsd.org
> Subject: Re: IP -> e-mail
> 
> 
> Matthias Apitz writes:
> 
> >  > Let say my computer is connected to the internet with a cable
> > modem and has a dynamic IP address via DHCP. This address is
> > refreshed after every random days.
> >
> >  > I want to know the new address even when I'm not home. Like  send
> > an e-mail with the new IP, I already know how to do this,  but how can
> > I track the event when my computer receives the new  IP?
> >

If you are using it so you know what IP to hit from outside your network, I
would also recommend taking a look at a service like DynDNS as you would
have a DNS name that would auto correct for new IP.