Re: Testing load balanced servers behind NAT

[Carlos Carvalho <carlos () fisica ufpr br>]

Alex Butcher (alex () s3 integralis co uk) wrote on 7 September 2001 10:08:
> Andrew Koh wrote:
>
> > On getting internal IP:
> > Besides misconfigured  DNS and snmp, are there any other ways to find 
> > out internal host IP?
>
> Sometimes requesting non-existent files using HTTP (you don't say the 
> servers are running this, but...) can reveal internal IP addresses in 
> the error messages.

Sometimes email headers also reveal internal IPs or hostnames, such as
our case right now.

However I don't see the usefulness of having internal IPs, since
they're unreachable from the outside anyway. And once you're inside,
it's not at all a secret...

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