Conditional return of proxied responses

[Nicholas Sherlock]

On 2/09/2010 11:37 a.m., Neal Richter wrote:
> Sometimes in systems like EC2 the backend at a given IP that used to
> be yours may not be your box anymore (the IP might be reused).

Amazon already solved that for you, check out this section on using 
Elastic IPs internally:

http://alestic.com/2009/06/ec2-elastic-ip-internal

Cheers,
Nicholas Sherlock