sporatic, noaa.gov SERVFAIL

[Brad Bendily]

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.bendily at la.gov
225.342.6972