To find the public IP (on Ubuntu Server 8.10)

Kratosaurion7 · 12-24-2008, 03:27 PM

Hi, how can I check what is my public ip? I want people to connect to my site but I only have my private IP for my other computers at home. And I'm running Ubuntu Server so I don't have any kind of GUI to browse the net.

repo · 12-24-2008, 03:35 PM

lynx -dump http://www.formyip.com/ | awk '/IP is/{print $NF}'
or
wget -O- http://cfaj.freeshell.org/ipaddr.cgi 2>/dev/null
or
perl -MLWP::Simple -le '$_=get q(http://www.formyip.com/); print $1 if /IP is ((\d{1,3}\.){3}\d{1,3})/'

repo · 12-24-2008, 03:40 PM

To mail the IP to you:
wget -O- http://cfaj.freeshell.org/ipaddr.cgi 2>/dev/null | mail -s "IP SERVER" you@you.com

alexhwest · 12-26-2008, 03:21 PM

To make this easier on you you will probably want to run ddclient and use dyndns.org to get a hostname that you can use from the internet to connect to your dynamic IP. Of course, if you have a static address just ignore this

If you want to see the ip addresses assigned to the interfaces just use ifconfig -a

geek745 · 12-27-2008, 03:57 PM

or if you have your own website that's public, the IP of the requesting machine (you) is sent to the page, so PHP or ASP can return that from the headers - I have that on my site: http://pnguyen.net/getmyip.php