Recent problems with Reverse DNS.

[Kevin Darcy]

Brett Simpson wrote:

> On Wednesday 13 August 2003 02:38 pm, Kevin Darcy wrote:
> > DNS doesn't know from subnets. You could stuff everything into a single
> > 168.192.in-addr.arpa zone if you wanted. And if you don't care what the
> > reverse lookups resolve to, you could populate it with a single wildcard
> > PTR record. Or use $GENERATE to just populate it with generic names.
>
> I created a 172 reverse zone file with the following entry and it works great.
>
> *.172.in-addr.arpa.     IN      PTR     generic-reverse-172.

Well, technically RFC 1918 only reserved 172.16/12. You could end up accidentally
blinding yourself to legitimate reverse lookups if you define 172.in-addr.arpa.


- Kevin