On January 12, 2010 4:19:50 PM -0500 Frank Cusack <fcus...@fcusack.com>
wrote:
I can't think of a scenario for ANY type of server that would *require*
multiple PTR records.
I coincidentally just came across such a case. zeroconf uses multiple
PTR records. Not in .in-addr.arpa zones, so you don't use them to
resolve IPs to canonical hostnames, but nonetheless it uses PTR records
not unlike IP->A PTR mapping. For example you might have
_ipp._tcp.foo.com IN PTR printer1._ipp._tcp.foo.com.
_ipp._tcp.foo.com IN PTR printer2._ipp._tcp.foo.com.
...
The printerN._ipp._tcp.foo.com entries then each get an SRV record.
-frank
