FreeBSD DNS Resolver Issues?
Ian Smith
smithi at nimnet.asn.au
Tue Apr 24 08:33:36 UTC 2007
Sorry following up on my own post: a correction and some further info:
On Tue, 24 Apr 2007, Ian Smith wrote:
[..]
> At (one set of) the listed NServers:
>
> =======
> ; <<>> DiG 9.3.4 <<>> @lp1.wtplaw.com. mail.wtplaw.com.
> ; (1 server found)
> ;; global options: printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 24202
> ;; flags: qr aa; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 0
>
> ;; QUESTION SECTION:
> ;mail.wtplaw.com. IN A
>
> ;; ANSWER SECTION:
> mail.wtplaw.com. 3 IN A 66.166.181.163
> mail.wtplaw.com. 3 IN A 65.111.69.228
>
> ;; Query time: 268 msec
> ;; SERVER: 65.111.69.226#53(65.111.69.226)
> ;; WHEN: Tue Apr 24 15:57:00 2007
> ;; MSG SIZE rcvd: 65
> =======
>
> Note no A record provided for mail.wtplaw.com; same digging
> @lp2.wtplaw.com. So trying the 'other' listed NServers above:
That's wrong of course; it is returning two A RRs for mail.wtplaw.com.
however a) they always show 3 (three!) seconds TTL on those records, and
b) these two NS, lp1.wtplaw.com. and lp1.wtplaw.com. , aren't shown as
authoritative, and c) aren't even auth. / don't work for themselves!
=======
smithi on paqi% dig @lp1.wtplaw.com. lp1.wtplaw.com.
; <<>> DiG 9.3.4 <<>> @lp1.wtplaw.com. lp1.wtplaw.com.
; (1 server found)
;; global options: printcmd
;; connection timed out; no servers could be reached
smithi on paqi% dig @lp2.wtplaw.com. lp2.wtplaw.com.
; <<>> DiG 9.3.4 <<>> @lp2.wtplaw.com. lp2.wtplaw.com.
; (1 server found)
;; global options: printcmd
;; connection timed out; no servers could be reached
=======
Cheers, Ian
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