On 8.4.2012 10:59, Jonathan Vomacka wrote: > On 4/8/2012 3:52 AM, John R Pierce wrote: >> On 04/08/12 12:19 AM, Jonathan Vomacka wrote: >>> I am referring to when binding one of the IP alias to an application. >>> For example if I take any application installed on my server and tell it >>> to connect to another source from a specific IP alias, or listen on a >>> specific alias, there are issues with the hostname. When an external >>> source does a lookup, it comes with the server's hostname instead of the >>> hostname I want to show up for that specific IP. Do you know why this >>> happens? >> >> the name of the host is constant, it doesn't change with the IP address >> that a specific connection happens to be using. >> >> but, when you say, 'external source does a lookup', what /exactly/ do >> you mean? >> > > One example is an IRC bouncer. I configured the app to bind to a > particular IP to listen on and to connect to the designated IRC servers > with. When I connect the hostname reflects the machine hostname rather > then the hostname I want to come up on the IP address. > > Other applications seem to perform the same. Is it impossible to specify > hostnames for IP aliases. Perhaps hostname is the wrong terminology but > I figured RDNS and forward DNS would do the trick.. I think you are talking about the source ip used when your process is doing a connect to the bad world outside. Process is listening on IPb but when it does a connect IPa is used as source adress in the IP header. ? -- Kind Regards, Markus Falb
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