2011/3/4 Mark Andrews <ma...@isc.org>: > > In message <AANLkTi=9B07Q=flysn6s-0scossneuxms0qgy9h+o...@mail.gmail.com>, > terr > y writes: >> Hello, >> >> When I delegate a subdomain in a zone example.com, the config in >> named.conf is like: >> >> test.example.com. 3600 IN NS ns1.another.com. >> test.example.com. 3600 IN NS ns2.another.com. >> >> Then I dig to the auth-server of the example zone: >> >> dig test.example.com ns @ns1.example.com >> >> I found some servers return the ANSWER SECTION, but some servers >> return the AUTHORITY SECTION. >> >> For example: >> >> ;; ANSWER SECTION: >> test.example.com. 3600 IN NS ns2.another.com. >> test.example.com. 3600 IN NS ns1.another.com. >> >> And: >> >> ;; AUTHORITY SECTION: >> test.example.com. 3600 IN NS ns2.another.com. >> test.example.com. 3600 IN NS ns1.another.com. >> >> >> I'm confused, shall name server answer with ANSWER or AUTHORITY for this case >> ? > > Look at RA and RD. If the server recurses, you will get a answer. > If the server does not recurse, you will get a referral. Then there > are the really old broken servers which get this wrong. >
Hi Mark, Please see this for details: $ dig nsbeta.info ns @ns34.domaincontrol.com ; <<>> DiG 9.4.2-P2.1 <<>> nsbeta.info ns @ns34.domaincontrol.com ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 41454 ;; flags: qr aa rd; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; QUESTION SECTION: ;nsbeta.info. IN NS ;; ANSWER SECTION: nsbeta.info. 3600 IN NS ns34.domaincontrol.com. nsbeta.info. 3600 IN NS ns33.domaincontrol.com. ;; Query time: 183 msec ;; SERVER: 208.109.255.17#53(208.109.255.17) ;; WHEN: Fri Mar 4 22:59:39 2011 ;; MSG SIZE rcvd: 123 There isn't the "ra" flag in the response, why the nameserver has been also answering with the "ANSWER SECTION"? I think it should answer with the "AUTHORITY SECTION". Thanks again. _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
