How many NS records should be in the 0.0.127.in-addr.arpa zone?

Andy Cranston Andy.Cranston at RSL-Europe.com
Mon Sep 20 14:29:24 UTC 1999


Setup is BIND 8.2.1 on a mix of RedHat Linux 5.1 and HP-UX 10.20.  Internal
DNS with forwarders to resolve Internet domain names and addresses.

According to the DNS and BIND book the zone file for 0.0.127.in-addr.arpa
should contain an NS record for each server in your domain (see the 3rd
edition page 67).  First question - is this a correct assumption?

The reason I ask is that when named starts it sends a NOTIFY for each
primary zone to the name servers identified by the NS records (except itself
of course).  I got to thinking that the 0.0.127.in-addr.arpa zone will have
notify requests sent to my secordary name servers which will get ignored as
they aren't secondarying 0.0.127.in-addr.arpa.  Second question - am I still
on track here?

So to my mind (and as far as DNS goes it's a pretty small mind :-) I reckon
that the only NS record in the zone file for 0.0.127.in-addr.arpa zone
should be for the name server the db.127.0.0 file resides on.  Third
question - is this correct or will I break something by doing so?

Thanks in advance,

Andy Cranston,
RSL COM Europe.



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