Help: DNS and Dynamic DNS

Kevin Darcy kcd at daimlerchrysler.com
Tue Feb 27 22:34:21 UTC 2001


What is it exactly that you are trying to update? If you're trying to add a
"qwq.qdot.com" A record, then the status of the zone file for
10.168.192.in-addr.arpa is entirely irrelevant. Looks like server #1 is
authoritative for "qdot.com", but the zone is not enabled for Dynamic Update.
And it looks like server #2 is a lame delegation, i.e. it's not authoritative
for "qdot.com" at all.


- Kevin

Thomas B wrote:

> Anyone know how to get Dynamic DNS (nsupdate) to work? I probably have a
> config problem, but I can't find it.
>
> I have our subnet configured with the "allow-update" option set in the
> named.conf. The log file shows "Dynamic zone file db.192.168.10 is
> writable", so it appears writable.
>
> The allow-update option is set to the ip address of the dns server (which is
> the same server the nsupdate program is run from)
>
> But when I send the update, I get the following message: (the domains and IP
> addresses have been changed to protect the guilty).
>
> res_mkupdate: packet size = 49;; res_send()
> ;; ->>HEADER<<- opcode: UPDATE, status: NOERROR, id: 4462
> ;; flags:; ZONE: 1, PREREQUISITE: 0, UPDATE: 1, ADDITIONAL: 0
> ;;      qdot.com, type = SOA, class = IN
> qwq.qdot.com.        3w6d19h46m40s IN A  192.168.10.5
> ;; Querying server (# 1) address = 192.168.10.20server rejected query:
> ;; ->>HEADER<<- opcode: UPDATE, status: REFUSED, id: 4462
> ;; flags: qr ra; ZONE: 1, PREREQUISITE: 0, UPDATE: 1, ADDITIONAL: 0
> ;;      qdot.com, type = SOA, class = IN
> qwq.qdot.com.        3w6d19h46m40s IN A  10.1.6.5
> ;; Querying server (# 2) address = 138.58.53.22;; got answer:
> ;; ->>HEADER<<- opcode: UPDATE, status: NOTAUTH, id: 4462
> ;; flags: qr ra; ZONE: 0, PREREQUISITE: 0, UPDATE: 0, ADDITIONAL: 0
>
> This message shows the update was refused, but the log clearly shows that
> the zone is writable (log not listed).





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