[lug] Re: Virtual Hosting

John Hernandez John.Hernandez at noaa.gov
Wed Mar 14 12:18:05 MST 2001


For the purpose of reverse DNS lookup, you can generally pick any of the valid A RR keys for a particular IP address.  As long as a reverse -> forward lookup yields a result (IP address) equivalent to your initial input, services configured to be paranoid should be satisfied.

-John

Justin wrote:
> 
> In BIND 8.2.x the only file that relates to what you're talking about
> is your reverse zone file. It's the file that maps the ip's back to
> specific A record host names. As far as virtual hosting I don't believe
> you can have a file like this for virtual use. After all, virtual hosts
> don't really have their own ip address, they map back to another
> machines A record ip address. Which, in turn, that ip address must
> reverse lookup to it's respective host as defined by that A record. I
> think this stuff is in a BIND RFC somewhere, but I'm sure. I also may
> be way off here, but this has been my understanding since I can
> remember...
> 
> Justin
> 
> > It was my understanding that all the virtual hosts are listed in one
> > file and that file is pointed back to the server IP.  Maybe it
> > involves the $INCLUDE directive?
> >
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