[dns-operations] Odd query issue
jonathan.stewart at gmail.com
Sun Mar 3 05:41:30 UTC 2013
Looks like you solved it. I can get a successful result from here.
jgs at musashi:~$ dig +short @18.104.22.168 mail.rwjf.org
But it sounds like your problem was with UDP queries not being answered.
Reasons why include a DNS server configuration parameter (is it configured
to listed on UDP port 53?), or a firewall rule.
Anyway, it's undoubtedly a local configuration issue.
On Sat, Mar 2, 2013 at 6:06 PM, Mohamed Lrhazi <ml623 at georgetown.edu> wrote:
> Sorry posting this here..
> What could possibly cause this:
> One, and only one specific query so far, is failing, systematically, like
> so, on a mail appliance of ours:
> > dig @22.214.171.124 mail.rwjf.org
> ; <<>> DiG 9.4.3-P2 <<>> @126.96.36.199 mail.rwjf.org A
> ; (1 server found)
> ;; global options: printcmd
> ;; connection timed out; no servers could be reached
> Using +tcp works. same query against google public DNS works. Same query
> from other systems in our network works.
> tcpdump and whireshark, show, in pcap taken on the appliance itself, the
> reply came back pretty quick and looks correct:
> 3 12:27:46.045245 188.8.131.52 184.108.40.206 DNS Standard query A
> mail.rwjf.org 62431 53
> 4 12:27:46.054869 220.127.116.11 18.104.22.168 DNS Standard query response
> A 22.214.171.124 53 62431
> But dig (and the mail software in the appliance) fails.
> Thanks a lot,
> dns-operations mailing list
> dns-operations at lists.dns-oarc.net
> dns-jobs mailing list
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