In message <7610864823c0d04d89342623a3adc9de2e339...@hopple.countryday.net>, "Sp ain, Dr. Jeffry A." writes: > I reviewed RFC 6303, which recommends configuring a number of zones using a= > n empty zone file as follows: > > @ 10800 IN SOA @ nobody.invalid. 1 3600 1200 604800 10800 > @ 10800 IN NS @ > > In bind 9.9.0 this results in errors for each zone referring to the empty z= > one file as follows: > Feb 29 19:24:30 ns0s named[6044]: zone 10.in-addr.arpa/IN: NS '10.in-addr.a= > rpa' has no address records (A or AAAA) > Feb 29 19:24:30 ns0s named[6044]: zone 10.in-addr.arpa/IN: not loaded due t= > o errors. > > Changing the second line to '@ 10800 IN NS localhost.' eliminates the error= > s. > > This question was raised several weeks ago (see https://lists.isc.org/piper= > mail/bind-users/2012-January/086321.html), but no explanation was offered a= > s to why '@ 10800 IN NS @' causes these errors. What additional thoughts do= > es anyone have?
The built in empty zone processing is aware of the special case of NS records without address records. The generic zone processing rules treat this as a error condition. > Another question with regard to RFC 6303: 255.255.255.255.in-addr.arpa is r= > ecommended for an empty zone. RFC 1912, on the contrary, and stipulating to= > the fact that this document is 15 years old, And informational. > recommends 255.in-addr.arpa. = > Going with the recommendations in RFC 6303 results in 'dig @localhost -x 22= > 5.x.y.z' sending a query out to the Internet for any 255.x.y.x other than 2= > 55.255.255.255. Which of these alternative empty zones should be used in th= > e current DNS environment and why? BCP 163 (RFC 6303) is based on BCP 153 (RFC 5735) which trumps RFC 1912. > Thanks. Jeff. > > Jeffry A. Spain > Network Administrator > Cincinnati Country Day School -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
