[geeks] DNS: CN & A records

[velociraptor]

On 6/23/05, Mike Meredith <mike at redhairy1.demon.co.uk> wrote:
> Nope. You can have as many A records pointing to an IP as you wish. In
> theory you should have multiple PTR records pointing back to every name
> that points to the IP :-
>
> 1.254.197.148.in-addr.arpa. IN PTR dns0.port.ac.uk.
> 1.254.197.148.in-addr.arpa. IN PTR mail.port.ac.uk.
>
> In practice it isn't usually done, and pretty much nobody cares ...
> except for a certain Greg who used to live on these lists.

I am a bit of a hard-a$$ about this too (at least for internal
DNS), there are some apps that don't work if there is no
reverse.  Most people have never been bit by that kinda
thing, so they ignore it.

=Nadine=