Date: Fri, 25 Jan 2002 11:02:00 +1300 From: Jonathan Chen <jonc@wapsolutions.co.nz> To: freebsd-questions@freebsd.org Subject: Reverse-ptr entry under DNS Message-ID: <3C508458.1030705@wapsolutions.co.nz>
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Hi,
Here in NZ, I've noticed that IP addresses allocated for ADSL
connections have odd reverse-ptr entries:
eg:
> dig -x 203.96.91.96
[...]
;; ANSWER SECTION:
96.91.96.203.in-addr.arpa. 24m1s IN CNAME
96.96-127.91.96.203.in-addr.arpa.
;; AUTHORITY SECTION:
91.96.203.in-addr.arpa. 3d23h24m1s IN NS reliant.netgate.net.nz.
91.96.203.in-addr.arpa. 3d23h24m1s IN NS defiant.netgate.net.nz.
If I use:
> nslookup -type 203.96.91.96
I eventually get the name associated with the IP.
Is it legal to have CNAMEs for in-addr.arpa addresses instead of
PTR? I ask this 'cos the freebsd.org mailservers don't seem to
think so, and it's refusing to accept email directly from these IPs.
Cheers.
--
Jonathan Chen <jonc@wapsolutions.co.nz>
"Nyuck, nyuck, nyuck" -- Curly.
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