Hi As others have indicated, this block has been delegated to you using RFC2317 - Classless IN-ADDR.ARPA delegation.
You have to make configure a zone in your named.conf named 162-27.3.187.64.in-addr.arpa. Then populate this zone with your data. Something like ... $ORIGIN 162-27.3.187.64.in-addr.arpa. 170 PTR smtp3.netcraftcommunications.com. ... Regards Sven Emil Skretteberg DNS admin, EDB Business Partner On Thu, Jun 11, 2009 at 8:08 PM, Frank Pikelner < frank.pikel...@netcraftcommunications.com> wrote: > > Every now and then we get a bounce on emails that are sent through one of > our mails servers located on 64.187.3.170. The bounce messages look as > follows and appear to indicate that our reverse zone is missing a record, > though the record is there and resolves through nslookup. The ISP delegates > a number of IP addresses from the zone back to us (16 IP addresses). So my > guess is that our zone file needs to be rewritten or there may be something > else I'm missing. > > > <first_l...@some_domain.com>: host mx.some_domain.com[xxx.xx.xx.xx] said: > 450 4.7.1 Client > host rejected: cannot find your hostname, [64.187.3.170] (in reply to > RCPT > TO command) > > > Performing a manual reverse lookup correctly displays the correct name for > 170.3.187.64.in-addr.arpa. Our zone file looks as follows (other records > removed): > > $ORIGIN . > $TTL 86400 ; 1 day > 3.187.64.in-addr.arpa IN SOA ns1.blue-dot.ca. dnsadmin.ns1.blue-dot.ca. > ( > 2009011401 ; serial > 1800 ; refresh (30 minutes) > 900 ; retry (15 minutes) > 604800 ; expire (1 week) > 1800 ; minimum (30 minutes) > ) > NS ns1.blue-dot.ca. > NS ns2.blue-dot.ca. > NS ns3.blue-dot.ca. > $ORIGIN 3.187.64.in-addr.arpa. > 170 PTR smtp3.netcraftcommunications.com. > > _______________________________________________ > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users >
_______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
