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RE: [Full-disclosure] Reverse dns
From: Dale Babiy (DaleBBETWWTS.com)
Date: Thu Mar 10 2005 - 10:35:10 CST
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Rfc1912 section 2.1 says:
"Every Internet-reachable host should have a name. The
of this are becoming more and more obvious. Many services
on the Internet will not talk to you if you aren't correctly
registered in the DNS.
Make sure your PTR and A records match. For every IP address,
should be a matching PTR record in the in-addr.arpa domain. If a
host is multi-homed, (more than one IP address) make sure that all
addresses have a corresponding PTR record (not just the first
Failure to have matching PTR and A records can cause loss of
services similar to not being registered in the DNS at all. Also,
PTR records must point back to a valid A record, not a alias
by a CNAME. It is highly recommended that you use some software
which automates this checking, or generate your DNS data from a
database which automatically creates consistent data."
That's as close as I could come in a short skim. At the very least
it's recommended, and probably a best practice.
Tasman Gaming Inc
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