Sam Wilson <sam.wil...@ed.ac.uk> wrote: > > Is a name on the RHS of an RR regarded as existing enough to prevent > wildcard lookup?
No, only RR owner names. > In this I would have expected the NS lookup to be followed by an A > lookup for abc.a.example.com which would match the wildcard, assuming no > other records match that name on the LHS. Yes that should work. The latter answer might appear to be missing because additional section processing is a bit special. In your original question you mentioned glue, which is only necessary for delegations above the zone cut, and probably should not rely on wildcards. If this is a zone apex NS RRset then the server doesn't have to fill in the additional section. See the example below, from a nameserver that has minimal-responses turned on. ; <<>> DiG 9.8.1-P1 <<>> ns dotat.at ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41609 ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;dotat.at. IN NS ;; ANSWER SECTION: dotat.at. 3600 IN NS ns1.gratisdns.dk. dotat.at. 3600 IN NS black.dotat.at. dotat.at. 3600 IN NS puck.nether.net. dotat.at. 3600 IN NS ns3.gratisdns.dk. ;; Query time: 1 msec ;; SERVER: 127.0.0.1#53(127.0.0.1) ;; WHEN: Tue May 15 15:52:19 2012 ;; MSG SIZE rcvd: 123 Tony. -- f.anthony.n.finch <d...@dotat.at> http://dotat.at/ Forties, Cromarty, Forth, Tyne, Dogger: Northwest 5 to 7, occasionally 4 in Forth and Tyne. Moderate or rough, occasionally very rough in Forties and Dogger. Showers. Good, occasionally moderate. _______________________________________________ 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
