Comments on: Howto Check you external IP Address from the command line

By: Jo

Jo — Tue, 25 Oct 2011 06:22:00 +0000

Thanks for this!!! great site

By: ?

Mon, 13 Dec 2010 03:31:41 +0000

ifconfig doesn’t give your external address.
The site has also implemented a new page specifically for scripts (and the method shown here no longer works), with the request that you not query it more than once every 5 minutes. The script can be made much simpler:

#!/bin/bash
wget http://www.whatismyip.com/automation/n09230945.asp -O - -o /dev/null
echo

By: jksadf

jksadf — Sun, 17 Oct 2010 15:21:52 +0000

You can use ifconfig; IP address is under “inet addr”.

By: DosDawg

DosDawg — Tue, 01 Dec 2009 06:25:08 +0000

well, without using whatismyip.org you can put this in your shell script;

dig yourdomain.com

call the shell script
./digmyip.sh or whatever you want to name it

at any rate as for the logs and outages and all of that, didnt have the time to get that one figured out, but that would be port monitoring on cron jobs checking periodically to see if common ports are open and accessible. but you can create a log file on your local machine and have it email you when port 80, port 21 port 22 port 3306 go down and add any other ports you want monitored.

By: Markus

Markus — Sat, 20 Jun 2009 03:42:25 +0000

whatismyip.com does not allow scripts to their main site. I don’t have the address with me right now, but they want you to use a different page, that only spits out the IP. Less bandwidth for them, I suppose. I discovered this with a perl script, but do a wget and there will be a line in the output with the correct address.

But there is still a fallacy in the assumption that you can find your external IP that way. What if you can’t reach “whatismyip.com”?

I would like to know how I can find my external IP without having to reach a remote host on the internet. Say I have a DNS problem and I can’t get to any host. Also I’d like to script this so that I can keep track of down times with Charter Cable and have a detailed logs of outages. I have tons of trouble with them because they think that everyone is asleep at 3 a.m. and then disconnect the internet. Grrrrr. Gets me furious. Cable Companies SUCK. Wish there could be a non-profit co-op ISP.

By: Tadeu

Tadeu — Sat, 24 Jan 2009 13:25:56 +0000

Not sure if curl is installed by default on Ubuntu (I don’t use it), but another way to do that would be

curl http://www.whatismyip.org

with a && echo at the and to jump a line, if necessary.

By: Mike

Mike — Fri, 16 Jan 2009 20:25:07 +0000

great tip, you can use slurpware.org, only spits out IP nothing else, so easy to read.

By: benamara

benamara — Tue, 25 Nov 2008 15:43:07 +0000

voila mon commentaire

By: daaawg

daaawg — Fri, 10 Oct 2008 17:05:59 +0000

Try either of these in a script or terminal:

wget -qO - http://cfaj.freeshell.org/ipaddr.cgi
or
lynx -dump http://whatismyip.org/

Of course these will only work if you have wget or lynx installed on your system. Be aware that as written, the wget command returns a string without a newline character, so deal with that quirk accordingly. Can anybody correct that to return a newline?

By: moonsoup

moonsoup — Thu, 25 Sep 2008 16:01:59 +0000

try

lynx -dump http://whatismyip.com | awk ‘/Your/{print $5}’

that seems to work on my system.

By: blog.sudosu.net

blog.sudosu.net — Sat, 08 Dec 2007 19:43:17 +0000

Correction to Ubuntu Geek’s “How To Check Your External IP Address From The Command Line”…

I follow the Ubuntu Geek blog, and have found some very useful tips there. However, there’s a problem with their latest tip, “Howto Check you (sic) external IP Address from the command line.”
Some background: There’s a very usef…