I found the problem. After the various delegation config issues were cleared and it still didn't work, I started doing some traces. The problem turned out to be 1. We had a query source port of 53 configured that was left over from some old legacy compatibility issues. 2. The firewall between us and the subdomain authority was only allowing queries from high-numbered ports. 3. The dns rule in the firewall was configured to not log, so the drops didn't show up when I looked previously.
I removed the query source-port option and all is now good. Thank you to Chris Buxton for all of his patience. I learned a few things along the way. Mike -----Original Message----- From: Chris Buxton [mailto:cbux...@menandmice.com] Sent: Thursday, May 07, 2009 1:19 PM To: Mike Bernhardt Cc: bind-users@lists.isc.org Subject: Re: Delegation not working Mike, That was two separate commands. dig +norec -x 10.0.2.252 @148.165.126.87 and dig +norec -x 10.0.2.252 @10.2.242.222 So most of what you sent back is gibberish. However, at the top, there is the message "connection timed out; no servers could be reached". There's at least part of your problem. Chris Buxton Professional Services Men & Mice On May 7, 2009, at 12:50 PM, Mike Bernhardt wrote: > That gave me: > dig +norec -x 10.0.2.252 @148.165.126.87 dig +norec -x 10.0.2.252 > @10.2.242.222 > ;; connection timed out; no servers could be reached > ;; Got answer: > ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 34563 > ;; flags: qr ra; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 14 > > ;; QUESTION SECTION: > ;dig. IN A > > ;; AUTHORITY SECTION: > . 162058 IN NS C.ROOT-SERVERS.NET. > . 162058 IN NS D.ROOT-SERVERS.NET. > . 162058 IN NS E.ROOT-SERVERS.NET. > . 162058 IN NS F.ROOT-SERVERS.NET. > . 162058 IN NS G.ROOT-SERVERS.NET. > . 162058 IN NS H.ROOT-SERVERS.NET. > . 162058 IN NS I.ROOT-SERVERS.NET. > . 162058 IN NS J.ROOT-SERVERS.NET. > . 162058 IN NS K.ROOT-SERVERS.NET. > . 162058 IN NS L.ROOT-SERVERS.NET. > . 162058 IN NS M.ROOT-SERVERS.NET. > . 162058 IN NS A.ROOT-SERVERS.NET. > . 162058 IN NS B.ROOT-SERVERS.NET. > > ;; ADDITIONAL SECTION: > A.ROOT-SERVERS.NET. 599086 IN A 198.41.0.4 > A.ROOT-SERVERS.NET. 552012 IN AAAA 2001:503:ba3e::2:30 > B.ROOT-SERVERS.NET. 35325 IN A 192.228.79.201 > C.ROOT-SERVERS.NET. 599099 IN A 192.33.4.12 > D.ROOT-SERVERS.NET. 599100 IN A 128.8.10.90 > E.ROOT-SERVERS.NET. 599101 IN A 192.203.230.10 > F.ROOT-SERVERS.NET. 599102 IN A 192.5.5.241 > F.ROOT-SERVERS.NET. 552012 IN AAAA 2001:500:2f::f > G.ROOT-SERVERS.NET. 599090 IN A 192.112.36.4 > H.ROOT-SERVERS.NET. 599091 IN A 128.63.2.53 > H.ROOT-SERVERS.NET. 552012 IN AAAA 2001:500:1::803f:235 > I.ROOT-SERVERS.NET. 599092 IN A 192.36.148.17 > J.ROOT-SERVERS.NET. 208142 IN A 192.58.128.30 > J.ROOT-SERVERS.NET. 208142 IN AAAA 2001:503:c27::2:30 > > ;; Query time: 0 msec > ;; SERVER: 148.165.30.30#53(148.165.30.30) > ;; WHEN: Thu May 7 12:52:39 2009 > ;; MSG SIZE rcvd: 504 > > > ; <<>> DiG 9.3.4 <<>> +norec -x 10.0.2.252 @148.165.126.87 dig > +norec -x > 10.0.2.252 @10.2.242.222 > ; (1 server found) > ;; global options: printcmd > ;; connection timed out; no servers could be reached > > -----Original Message----- > From: Chris Buxton [mailto:cbux...@menandmice.com] > Sent: Thursday, May 07, 2009 12:50 PM > To: Mike Bernhardt > Cc: bind-users@lists.isc.org > Subject: Re: Delegation not working > > On May 7, 2009, at 12:37 PM, Mike Bernhardt wrote: >> And dig gives me this: >> dig +norec @athena -x 10.0.2.252 >> >> ;; QUESTION SECTION: >> ;252.2.0.10.in-addr.arpa. IN PTR >> >> ;; AUTHORITY SECTION: >> 0.10.in-addr.arpa. 14400 IN NS mrep-02.adm.bart.gov. >> 0.10.in-addr.arpa. 14400 IN NS dhcp-01.adm.bart.gov. >> >> ;; ADDITIONAL SECTION: >> dhcp-01.adm.bart.gov. 86400 IN A 148.165.126.87 >> mrep-02.adm.bart.gov. 86400 IN A 10.2.242.222 > > That looks perfect. > >> Without +norec, it times out. > > > OK, now we're getting somewhere. Why would the server "athena" have > trouble querying those two servers? Try this from "athena" itself: > > dig +norec -x 10.0.2.252 @148.165.126.87 > dig +norec -x 10.0.2.252 @10.2.242.222 > > Chris Buxton > Professional Services > Men & Mice > _______________________________________________ bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users
