Re: query an external nameserver doubt
On 19.02.09 12:26, Nuno Ribeiro wrote: >> There is a CNAME Record "www.example.test.com CNAME ts.example.test2.com" >> in the "example.test.com" zone, which my nameserver is not authoritive. My >> name server is authoritive for "example.test2.com" zone. >> >> I receive a A query for "www.example.test.com". I send this query to >> external nameservers and discover the CNAME record target is in my zone. >> Is this possible? And Matus UHLAR - fantomas replied: >Yes, it's possible. They will reply with > >www.example.test.com CNAME ts.example.test2.com > >If they have recursion or query-cache enabled, they may also respond with >ts.example.test2.com A in answer section and example.test.com NS info in >authority/additional sections I am not sure exactly what the OP wanted. If he wants to be able to send a query to find all of the DNS CNAME records that point to his server, there is no way of doing this, as any domain could conceivably contain such a CNAME record, and he would have to query every name server. -- Barry S. Finkel Computing and Information Systems Division Argonne National Laboratory Phone:+1 (630) 252-7277 9700 South Cass Avenue Facsimile:+1 (630) 252-4601 Building 222, Room D209 Internet: bsfin...@anl.gov Argonne, IL 60439-4828 IBMMAIL: I1004994 ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: query an external nameserver doubt
On 19.02.09 12:26, Nuno Ribeiro wrote: > To: comp-protocols-dns-b...@isc.org, bind-users@lists.isc.org Don't do this. The mailing list and newsgroup are connected. > There is a CNAME Record "www.example.test.com CNAME ts.example.test2.com" > in the "example.test.com" zone, which my nameserver is not authoritive. My > name server is authoritive for "example.test2.com" zone. > > I receive a A query for "www.example.test.com". I send this query to > external nameservers and discover the CNAME record target is in my zone. > Is this possible? Yes, it's possible. They will reply with www.example.test.com CNAME ts.example.test2.com If they have recursion or query-cache enabled, they may also respond with ts.example.test2.com A in answer section and example.test.com NS info in authority/additional sections -- Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/ Warning: I wish NOT to receive e-mail advertising to this address. Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. Fighting for peace is like fucking for virginity... ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: query an external nameserver doubt
Here is an example: There is a CNAME Record "www.example.test.com CNAME ts.example.test2.com" in the "example.test.com" zone, which my nameserver is not authoritive. My name server is authoritive for "example.test2.com" zone. I receive a A query for "www.example.test.com". I send this query to external nameservers and discover the CNAME record target is in my zone. Is this possible? Best Regards, NR On Thu, Feb 19, 2009 at 1:29 AM, Barry Margolin wrote: > In article , > Nuno Ribeiro wrote: > > > Is it possible to send a query to a external nameserver that can be a > CNAME > > for a record located in other nameserver zone where we are authoritive? > > It's hard to parse this. Could you give an example of what you're asking > about? > > -- > Barry Margolin, bar...@alum.mit.edu > Arlington, MA > *** PLEASE don't copy me on replies, I'll read them in the group *** > ___ > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users > -- Nuno Ribeiro ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
Re: query an external nameserver doubt
In article , Nuno Ribeiro wrote: > Is it possible to send a query to a external nameserver that can be a CNAME > for a record located in other nameserver zone where we are authoritive? It's hard to parse this. Could you give an example of what you're asking about? -- Barry Margolin, bar...@alum.mit.edu Arlington, MA *** PLEASE don't copy me on replies, I'll read them in the group *** ___ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
