Question

I’m working with an API that requires the machine’s external IP. I have come understand that I can’t do this without relying on an external server.

I’ve used whatismyip.com in the past:

wget -q -O - http://whatismyip.com/automation/n09230945.asp

What are some other services for checking the external IP of a machine? Since I’m concerned about a single point of failure, I’d like to have a few options to which I can fail over.

Answer 1

curl -s http://checkip.dyndns.org | sed 's/[a-zA-Z/<> :]//g'

Now, I didn’t write that myself, just doing some research for you.

http://www.geekology.co.za/blog/2009/04/checking-your-internal-and-external-ip-addresses-on-a-unix-machine/

Or

wget -O -q icanhazip.com