Doug <d...@gorean.org> wrote: >Louis A. Mamakos wrote: >>[lost attribution] >>> >>> That IS a violation of the standard, since A records are not valid >>> for hosts in in-addr.arpa. >> >> And next I suppose you'll tell me that PTR records are not valid >> outsize of the IN-ADDR.ARPA portion of the DNS namespace? > > Given how PTR RR's are defined, I'd have to say, ayyup.
I suggest you read RFC 2317 (classless reverse DNS). Among its recommendations are setups like: 130.134.240.212.in-addr.arpa. CNAME 130.128/28.134.240.212.in-addr.arpa. 130.128/28.134.240.212.in-addr.arpa. PTR dotat.at. and: 130.134.240.212.in-addr.arpa. CNAME 130.rev.dotat.at. 130.rev.dotat.at PTR dotat.at. RFC 2181 allows the / in the CNAME RRs. There's no reason for restricting PTR RRs to a particular part of the name space, and indeed this example shows that doing so can make administration unnecessarily harder. The real reverse DNS for dotat.at uses this more conservative setup: 130.134.240.212.in-addr.arpa. CNAME 130.128-28.134.240.212.in-addr.arpa. 130.128-28.134.240.212.in-addr.arpa. PTR dotat.at. Tony. -- f.a.n.finch d...@dotat.at f...@demon.net e pluribus unix To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
