Only one PTR per IP (was: They just don't make a Lart big enough for this....)

[Kevin Darcy]

Last time I looked, BIND didn't "round-robin" PTR records...


- Kevin

don at news.daedalus.co.nz wrote:

>  <Mark.Andrews at nominum.com> wrote:
> >       My advise is to pick one of the names of a machines and put
> >       it in the reverse mapping and to forget about the other names.
>
> I'd go further, and point out that the reverse map is used primarily
> for logging traffic from the IP address concerned, so the reverse map
> should reflect that.  Producing different answers (due to
> round-robining) for the same IP address is the Wrong Thing to do.  And
> the name which is returned should refer to the owner/operator of the
> box, not the clients who happen to be on it.
>
> Thus if you have:
>
>         server.example.com
>         www.foo.com
>         www.bar.com
>
> all pointing to the same box, where server.example.com is the local name
> of the box and www.foo.com & www.bar.com are virtual hosts on it, the
> PTR should point to server.example.com, not the vitual hosts.
>
> -- don