Is there any easy way to get the (reverse DNS) canonical hostname
associated with $interface_address ? It would make it much easier
for me to set up certain aspects of IP-based virtual domains.
I know I could set up a file and use lookups to do the translation;
but it would be much cleaner if I could get it from the existing
DNS database.
If there is no easy built-in method at this time, I'd like to
propose either:
1) Add an $interface_host variable that would be set to the
reverse DNS lookup of $interface_address. (When that
variable is valid.)
Or
2) Add a general DNS lookup capability that would take a key
and a record type. (With some magic to recognize and convert
IP address keys into the in-addr.arpa form when PTR records
are requested.)
Thanks,
-Pat
