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Is there a way to determine the ip address of the ec2 instance you're accessing from the browser?

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up vote 6 down vote accepted

Only if your backend server identifies itself in the response. For instance, you might configure it to insert an HTTP header in the response.

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A comment embedded in the HTML (or a tooltop on a logo) is often a convenient solution too -- the latter has the advantage of being something Joe Average User can do when you're troubleshooting something: "OK hover over the MyCompany logo and a little yellow box should appear - what does it say in the box?" – voretaq7 Oct 15 '12 at 17:18

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