Help w/specific site after upgrade

[Dawn Lovell]

After upgrading from 8.2.3 to 8.3.3 a few weeks ago, we've started
having problems resolving software.sonicwall.com, which is a cname
to software.global.sonicwall.com.  The problem we're having actually
appears to be with the global.sonicwall.com subdomain.  We can only
rarely resolve its authoritative nameservers, and that success only
lasts for a few minutes.

What's odd about this is that we have no resolution problems for
the domain on boxes running 9.2.1 or (temporarily, for testing
this issue) 8.2.3.  Is this just a coincidence; am I missing
something obvious (probably!)? :-)

Below are some digs from an 8.3.3 box...

$ dig global.sonicwall.com soa

; <<>> DiG 8.3 <<>> global.sonicwall.com soa
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 0
;; QUERY SECTION:
;;      global.sonicwall.com, type = SOA, class = IN

;; ANSWER SECTION:
global.sonicwall.com.   31m48s IN SOA   tko0mon00.colo.sonicwall.com. ssandoval.colo.sonicwall.com. (
                                        22              ; serial
                                        15M             ; refresh
                                        10M             ; retry
                                        1D              ; expiry
                                        1H )            ; minimum


;; AUTHORITY SECTION:
global.sonicwall.com.   23h21m37s IN NS  swsj0dns00.global.sonicwall.com.
global.sonicwall.com.   23h21m37s IN NS  swtk0dns00.global.sonicwall.com.
global.sonicwall.com.   21m37s IN NS    swln0dns00.global.sonicwall.com.

;; Total query time: 3 msec
;; FROM: ns1 to SERVER: default -- 127.0.0.1
;; WHEN: Thu Jul 18 15:20:42 2002
;; MSG SIZE  sent: 38  rcvd: 174

$dig swsj0dns00.global.sonicwall.com

; <<>> DiG 8.3 <<>> swsj0dns00.global.sonicwall.com
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 2
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;;      swsj0dns00.global.sonicwall.com, type = A, class = IN

;; AUTHORITY SECTION:
global.sonicwall.com.   25m54s IN SOA   sjc0dmc02.colo.sonicwall.com. admin.colo.sonicwall.com. (
                                        33              ; serial
                                        15M             ; refresh
                                        10M             ; retry
                                        1D              ; expiry
                                        1H )            ; minimum


;; Total query time: 3 msec
;; FROM: ns1 to SERVER: default -- 127.0.0.1
;; WHEN: Thu Jul 18 15:22:04 2002
;; MSG SIZE  sent: 49  rcvd: 106

Any help would be greatly appreciated!  Thanks for your time.

Dawn Lovell
dlovell at centurytel.net