Local Resolving Issues on Caching Servers?

[Pete Ehlke]

On Wed Jan 05, 2005 at 11:55:42 -0500, Two Dog wrote:
>
>We have the following domain mga-cgoon01CA100.cogeco.ca of which we
>are authorative for.  I've seen issues where our two recursive caching
>resolvers could not resolve that domain.  After a reload of named they
>were able to resolve the domain properly.
>

Fix your authoritative servers. Of the three you have listed, one is
lame, and one is broken:


; <<>> DiG 9.2.4rc3 <<>> mga-cgoon01CA100.cogeco.ca @ns.cgocable.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 12107
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;mga-cgoon01CA100.cogeco.ca.    IN      A

;; AUTHORITY SECTION:
cogeco.ca.              86400   IN      SOA     ns4.cgocable.net.
dnsadmin.cgocable.net. 99042002 1800 7200 604800 86400

;; Query time: 85 msec
;; SERVER: 24.226.10.15#53(ns.cgocable.net)
;; WHEN: Wed Jan  5 09:06:00 2005
;; MSG SIZE  rcvd: 114

; <<>> DiG 9.2.4rc3 <<>> mga-cgoon01CA100.cogeco.ca @ns2.cgocable.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 38721
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;mga-cgoon01CA100.cogeco.ca.    IN      A

;; Query time: 96 msec
;; SERVER: 24.226.1.42#53(ns2.cgocable.net)
;; WHEN: Wed Jan  5 09:06:26 2005
;; MSG SIZE  rcvd: 44

; <<>> DiG 9.2.4rc3 <<>> mga-cgoon01CA100.cogeco.ca @ns4.cgocable.net
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26086
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 3, ADDITIONAL: 3

;; QUESTION SECTION:
;mga-cgoon01CA100.cogeco.ca.    IN      A

;; ANSWER SECTION:
mga-cgoon01CA100.cogeco.ca. 86400 IN    A       216.221.77.6
mga-cgoon01CA100.cogeco.ca. 86400 IN    A       216.221.77.38

;; AUTHORITY SECTION:
cogeco.ca.              86400   IN      NS      ns.cgocable.net.
cogeco.ca.              86400   IN      NS      ns4.cgocable.net.
cogeco.ca.              86400   IN      NS      ns2.cgocable.net.

;; ADDITIONAL SECTION:
ns.cgocable.net.        86400   IN      A       24.226.10.15
ns4.cgocable.net.       86400   IN      A       24.226.1.46
ns2.cgocable.net.       86400   IN      A       24.226.1.42

;; Query time: 79 msec
;; SERVER: 24.226.1.46#53(ns4.cgocable.net)
;; WHEN: Wed Jan  5 09:06:57 2005
;; MSG SIZE  rcvd: 198