Does AWS resolve same-datacenter hostnames to 10.* addresses for different customer accounts?

Posted by Scott Ritchie on Server Fault See other posts from Server Fault or by Scott Ritchie
Published on 2012-06-14T21:22:23Z Indexed on 2012/06/22 15:18 UTC
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amazon-ec2

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amazon-web-services

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hostname

If I bring up two Amazon EC2 instances and run nslookup on one for the other's hostname, amazon will return a 10.* address. This is routable within amazon, and works just fine.

But does this work between different accounts? If I use one of my nodes to nslookup a hostname belonging to another customer (but still in the same datacenter) will it resolve as a 10.* address or will it give the standard public IP?

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