here is a wierd one

[Kevin Darcy]

pri1.dns.psi.ca and pri2.dns.psi.ca are giving NXDOMAIN for www.hummingbird.com. Only ns2.hcl.com seems able to
resolve that name authoritatively. Since the SOA serial for hummingbird.com is the same on all 3 nameservers,
I suspect that the hcl.com administrator simply forgot to increment it.


- Kevin

Christopher L. Barnard wrote:

> Can anyone figure out why I am seeing this?
>
> I have an internal server (Sun Solaris 7), running chrooted, chmoded bind
> 9.1.2 if it matters, that cannot resolve one hostname.  Not to pick on
> hummingbird.com or anything, but www.hummingbird.com cannot be resolved on any
> machine in the tsg.cbot.com zone.  Other "external" addresses can be resolved
> fine, and www.hummingbird.com can be resolved to an IP with no difficulty from
> any other machine in any other zone in the company (as well as outside sites
> of course).  I just happened to be notified of this problem because a
> colleague was trying to get to their website.  There are no error messages in
> the logs that I can see.
>
> Here is dig output from our master cbot.com server, showing that it can find
> it just fine:
>
> ----8<----
>
> ; <<>> DiG 8.3 <<>> www.hummingbird.com
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 4
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 3, ADDITIONAL: 3
> ;; QUERY SECTION:
> ;;      www.hummingbird.com, type = A, class = IN
>
> ;; ANSWER SECTION:
> www.hummingbird.com.    39m6s IN A      199.71.120.73
>
> ;; AUTHORITY SECTION:
> www.hummingbird.com.    39m6s IN NS     ns2.hcl.com.
> www.hummingbird.com.    39m6s IN NS     pri1.dns.psi.ca.
> www.hummingbird.com.    39m6s IN NS     pri2.dns.psi.ca.
>
> ;; ADDITIONAL SECTION:
> ns2.hcl.com.            1d23h39m6s IN A  199.71.120.70
> pri1.dns.psi.ca.        12h36m43s IN A  154.11.136.2
> pri2.dns.psi.ca.        12h36m43s IN A  154.11.145.2
>
> ;; Total query time: 5 msec
> ;; FROM: srvns1 to SERVER: default -- 164.74.31.202
> ;; WHEN: Wed Jul 25 10:02:38 2001
> ;; MSG SIZE  sent: 37  rcvd: 171
>
> ----8<----
>
> Here is the dig output from the master server of tsg.cbot.com, which cannot
> find it:
>
> ----8<----
>
> ; <<>> DiG 9.1.2 <<>> www.hummingbird.com
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 62894
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;www.hummingbird.com.           IN      A
>
> ;; AUTHORITY SECTION:
> hummingbird.com.        2189    IN      SOA     ns2.hcl.com. postmaster.hcl.com. 2001072001 7200 3600 604800 3600
>
> ;; Query time: 9 msec
> ;; SERVER: 164.74.19.206#53(164.74.19.206)
> ;; WHEN: Wed Jul 25 10:04:18 2001
> ;; MSG SIZE  rcvd: 92
>
> +-----------------------------------------------------------------------+
> | Christopher L. Barnard         O     When I was a boy I was told that |
> | cbarnard at tsg.cbot.com         / \    anybody could become president.  |
> | (312) 347-4901               O---O   Now I'm beginning to believe it. |
> | http://www.cs.uchicago.edu/~cbarnard                --Clarence Darrow |
> +----------PGP public key available via finger or PGP keyserver---------+