How do I email a remote computer IP to myself automatically?

[Massive Quasars]

I'd like to setup a remote computer that checks and emails it's IP periodically (everyday), what's the easiest way to go about doing this?

[^misantropia^]

`crontab -e` and add:

* 12 * * * ifconfig eth0 | perl -ne '/inet addr:([\d\.]*)/ && print $1' | mail -s "IP address" you@isp.com

That'll mail the IP address every day at noon (*NIX only, obviously).

[Massive Quasars]

Thanks misantropia.

riddla could you expand on that.

[Massive Quasars]

Sorted, thanks riddla.

[Foo]

I had another idea also. Some home routers come with a feature to email the router log periodically. While the log usually won't contain the routers external IP, the email header will.

I was messing with my home router today then realised this was probably possible.

[Massive Quasars]

After loading the DD-WRT firmware on my router, I found out that it supports many of these online services (DynDNS, No-IP, etc.). It can communicate the IP to these sites in place of a computer.

Good stuff.