I'm willing to bet there is no single set of 'actual working servers'. And since they are recursive servers, there are no 'hidden master' servers anywhere either.
Just a happy bunch of servers with the same IPs :-) regards Carlos On 11/15/12 11:35 AM, Liu Mingxing wrote: > How do you know where the actual working servers of google public DNS are? > > ------------------------------------------------------------------------ > Liu Mingxing > > *From:* Stephan Lagerholm <mailto:[email protected]> > *Date:* 2012-10-03 09:45 > *To:* Adam King <mailto:[email protected]>; > [email protected] <mailto:[email protected]> > *Subject:* Re: [dns-operations] Google Public DNS > I'm getting NOERROR from Dallas, Texas and Stockholm, Sweden. > > /S > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Adam > King > Sent: Tuesday, October 02, 2012 8:41 PM > To: [email protected] > Subject: [dns-operations] Google Public DNS > > I am receiving SERVFAIL from both 8.8.8.8 or 8.8.4.4 for specific > domains (icann.org, ietf.org, isc.org) > > Is anyone else seeing this? > Is this intentional? > > dig @8.8.8.8 icann.org > > ; <<>> DiG 9.5.1-P3 <<>> @8.8.8.8 icann.org ; (1 server found) ;; global > options: printcmd ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 41597 ;; flags: qr > rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;icann.org. IN A > > ;; Query time: 48 msec > ;; SERVER: 8.8.8.8#53(8.8.8.8) > ;; WHEN: Wed Oct 3 10:42:24 2012 > ;; MSG SIZE rcvd: 27 > > dig @8.8.4.4 icann.org > > ; <<>> DiG 9.5.1-P3 <<>> @8.8.4.4 icann.org ; (1 server found) ;; global > options: printcmd ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 1755 ;; flags: qr > rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;icann.org. IN A > > ;; Query time: 5001 msec > ;; SERVER: 8.8.4.4#53(8.8.4.4) > ;; WHEN: Wed Oct 3 11:25:56 2012 > ;; MSG SIZE rcvd: 27 > > dig @8.8.4.4 isc.org > > ; <<>> DiG 9.5.1-P3 <<>> @8.8.4.4 isc.org ; (1 server found) ;; global > options: printcmd ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 64761 ;; flags: qr > rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;isc.org. IN A > > ;; Query time: 0 msec > ;; SERVER: 8.8.4.4#53(8.8.4.4) > ;; WHEN: Wed Oct 3 11:26:16 2012 > ;; MSG SIZE rcvd: 25 > > dig @8.8.4.4 ietf.org. > > ; <<>> DiG 9.5.1-P3 <<>> @8.8.4.4 ietf.org. > ; (1 server found) > ;; global options: printcmd > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 6760 ;; flags: qr > rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;ietf.org. IN A > > ;; Query time: 34 msec > ;; SERVER: 8.8.4.4#53(8.8.4.4) > ;; WHEN: Wed Oct 3 11:29:52 2012 > ;; MSG SIZE rcvd: 26 > > dig @8.8.4.4 ietf.org > > ; <<>> DiG 9.5.1-P3 <<>> @8.8.4.4 ietf.org ; (1 server found) ;; global > options: printcmd ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 35189 ;; flags: qr > rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;ietf.org. IN A > > ;; Query time: 4987 msec > ;; SERVER: 8.8.4.4#53(8.8.4.4) > ;; WHEN: Wed Oct 3 11:30:00 2012 > ;; MSG SIZE rcvd: 26 > > dig @8.8.8.8 ietf.org > > ; <<>> DiG 9.5.1-P3 <<>> @8.8.8.8 ietf.org ; (1 server found) ;; global > options: printcmd ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 40815 ;; flags: qr > rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;ietf.org. IN A > > ;; Query time: 15 msec > ;; SERVER: 8.8.8.8#53(8.8.8.8) > ;; WHEN: Wed Oct 3 11:30:13 2012 > ;; MSG SIZE rcvd: 26 > > dig @8.8.8.8 ietf.org mx > > ; <<>> DiG 9.5.1-P3 <<>> @8.8.8.8 ietf.org mx ; (1 server found) ;; > global options: printcmd ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 5086 ;; flags: qr > rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 > > ;; QUESTION SECTION: > ;ietf.org. IN MX > > ;; Query time: 18 msec > ;; SERVER: 8.8.8.8#53(8.8.8.8) > ;; WHEN: Wed Oct 3 11:30:30 2012 > ;; MSG SIZE rcvd: 26 > > > Adam King > auDA > _______________________________________________ > dns-operations mailing list > [email protected] > https://lists.dns-oarc.net/mailman/listinfo/dns-operations > dns-jobs mailing list > https://lists.dns-oarc.net/mailman/listinfo/dns-jobs > _______________________________________________ > dns-operations mailing list > [email protected] > https://lists.dns-oarc.net/mailman/listinfo/dns-operations > dns-jobs mailing list > https://lists.dns-oarc.net/mailman/listinfo/dns-jobs > > > _______________________________________________ > dns-operations mailing list > [email protected] > https://lists.dns-oarc.net/mailman/listinfo/dns-operations > dns-jobs mailing list > https://lists.dns-oarc.net/mailman/listinfo/dns-jobs > _______________________________________________ dns-operations mailing list [email protected] https://lists.dns-oarc.net/mailman/listinfo/dns-operations dns-jobs mailing list https://lists.dns-oarc.net/mailman/listinfo/dns-jobs
