fixing distant computer via remote control

[compdoc]

> Question... Since the ISP probably uses NAT, this would probably 
> change over time.  Whenever my neighbor wants me to do a fix remotely, 
> can I ask her to run a command to learn the IP address?  

The command ifconfig will tell you if there is no router involved.

But, the best way to know your external address is by opening a site like:  

http://www.whatismyip.org/

or

http://www.whatismyip.com/


The command ifconfig will tell you if there is no router involved.