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i would like to find the public IP address of my EC2 instance from within the server itself.I know it is possible using ec2-describe-instances. But i want to do it assuming ec2-api-tools are not installed.

Is there a way to find that out?

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5 Answers 5

up vote 6 down vote accepted
curl http://169.254.169.254/2009-04-04/meta-data/public-ipv4

Also,

curl http://169.254.169.254/2009-04-04/meta-data/

to get a list of other metadata you can get.

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Nice! Fuller reference: docs.aws.amazon.com/AWSEC2/latest/UserGuide/… –  Domingo Ignacio Galdos Jan 16 '13 at 22:08

Can't you just nslookup it?

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As a matter of course, I now assign an Elastic IP to all new permanent (anything longer than a day) EC2 instances. This makes everything so much easier.

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There's a quick way to do it from the console on any server

With curl:

$ curl wgetip.com

With wget:

$ wget wgetip.com
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Hi I hope this article helps you:

http://jcsalterego.github.com/2011/02/24/standing-on-the-shoulder-of-giants.html

It describes a similar process to other answers here but goes in to more detail.

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