So, for a while we have had issues with resolving www.nhc.noaa.gov. In the past, a full restart of named fixed it for some amount of time.
Last week I updated our named to 9.9.6-P1, so I assumed whatever the problem was would be resolved by this update. Apparently not. As you can see from the dig commands below. One resolves correctly, then 2 minutes later SERVFAIL. How can I troubleshoot this further? thanks bb dr93la08:/var/lib/named/slave # dig www.nhc.noaa.gov ; <<>> DiG 9.9.6-P1 <<>> www.nhc.noaa.gov ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27700 ;; flags: qr rd ra; QUERY: 1, ANSWER: 12, AUTHORITY: 2, ADDITIONAL: 4 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.nhc.noaa.gov. IN A ;; ANSWER SECTION: www.nhc.noaa.gov. 300 IN CNAME edge-nws.woc.noaa.gov. edge-nws.woc.noaa.gov. 300 IN CNAME edge-p1.l.noaa.gov. edge-p1.l.noaa.gov. 30 IN A 140.172.17.11 edge-p1.l.noaa.gov. 30 IN A 140.90.33.11 edge-p1.l.noaa.gov. 30 IN A 140.172.17.21 edge-p1.l.noaa.gov. 30 IN A 129.15.96.21 edge-p1.l.noaa.gov. 30 IN A 216.38.80.71 edge-p1.l.noaa.gov. 30 IN A 140.90.200.21 edge-p1.l.noaa.gov. 30 IN A 140.90.33.21 edge-p1.l.noaa.gov. 30 IN A 216.38.80.81 edge-p1.l.noaa.gov. 30 IN A 129.15.96.11 edge-p1.l.noaa.gov. 30 IN A 140.90.200.11 ;; AUTHORITY SECTION: gov. 172795 IN NS a.gov-servers.net. gov. 172795 IN NS b.gov-servers.net. ;; ADDITIONAL SECTION: a.gov-servers.net. 172795 IN A 69.36.157.30 a.gov-servers.net. 172795 IN AAAA 2001:500:4431::2:30 b.gov-servers.net. 172795 IN A 209.112.123.30 ;; Query time: 3641 msec ;; SERVER: 10.120.11.107#53(10.120.11.107) ;; WHEN: Thu Jan 29 11:52:24 CST 2015 ;; MSG SIZE rcvd: 363 dr93la08:/var/lib/named/slave # dig www.nhc.noaa.gov ; <<>> DiG 9.9.6-P1 <<>> www.nhc.noaa.gov ;; global options: +cmd ;; Got answer:k ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 64437 ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 4096 ;; QUESTION SECTION: ;www.nhc.noaa.gov. IN A ;; Query time: 320 msec ;; SERVER: 10.120.11.107#53(10.120.11.107) ;; WHEN: Thu Jan 29 11:53:59 CST 2015 ;; MSG SIZE rcvd: 45 bb Brad Bendily System Administrator Northrop Grumman Corporation Louisiana Dept. of Children and Family Services brad.bend...@la.gov 225.342.6972 _______________________________________________ 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
