[lug] What's my IP?

[mblug at SedaliaComputer.com]

On RedHat, (not sure about other distros) you find the settings in 
/etc/sysconfig/network-scripts/ifcfg-eth0. At least that's what eth0 
uses on initialization, but if ifconfig has been compromised, who knows 
what else is messed up.

Mike

Jeff Schroeder wrote:

>Hey all--
>
>A friend just posed an interesting question to me... he wants to know 
>the IP address of a Linux machine, and he suspects that 'ifconfig' has 
>been compromised (as a joke, not as an evil rootkit).  He asked how he 
>can find the IP without using ifconfig and without connecting to 
>another machine.  He has root access.
>
>Depite a lot of Linux network background, I was amazed to find that I 
>didn't really know.  You *always* use 'ifconfig' for that!  In its 
>absence, what else is there?  I suspect there's a file buried somewhere 
>in /proc, but a bit of poking around didn't turn up anything useful.
>
>Assume this is a "basic" installation and doesn't include fancy network 
>analysis tools like nmap, ettercap, or ethereal.
>
>Ideas?
>
>Thanks,
>Jeff
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