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Thanks to both Stacey and Barry for the feedback. You've answered my question. Sorry I didn't get back with you on this sooner!<BR>
<BR>
Marty<BR>
<BR> <BR>
<HR id=stopSpelling>
Date: Wed, 17 Nov 2010 10:01:13 +0000<BR>From: stacey.marshall@oracle.com<BR>To: bind-users@lists.isc.org<BR>Subject: Re: problem getting address record for google public dns server<BR><BR>
<META name=Generator content="Microsoft SafeHTML">This crops up time and time again - perhaps +trace should have been +mimic.<BR><BR>The '+trace' option causes dig to act as a recursive server would, asking each server in turn for a none recursive answer. Thus when you say +trace its your instance of dig that's doing the work.<BR><BR>The details in the response hold your answer:<BR><BR><PRE>$ dig @66.231.91.222 google-public-dns-a.google.com
; <<>> DiG 9.3.6-P1 <<>> @66.231.91.222 google-public-dns-a.google.com
; (1 server found)
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 503
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 13, ADDITIONAL: 0
;; QUESTION SECTION:
;google-public-dns-a.google.com. IN A
;; AUTHORITY SECTION:
. 3600000 IN NS A.ROOT-SERVERS.NET.
. 3600000 IN NS B.ROOT-SERVERS.NET.
. 3600000 IN NS C.ROOT-SERVERS.NET.
. 3600000 IN NS D.ROOT-SERVERS.NET.
. 3600000 IN NS E.ROOT-SERVERS.NET.
. 3600000 IN NS F.ROOT-SERVERS.NET.
. 3600000 IN NS G.ROOT-SERVERS.NET.
. 3600000 IN NS H.ROOT-SERVERS.NET.
. 3600000 IN NS I.ROOT-SERVERS.NET.
. 3600000 IN NS J.ROOT-SERVERS.NET.
. 3600000 IN NS K.ROOT-SERVERS.NET.
. 3600000 IN NS L.ROOT-SERVERS.NET.
. 3600000 IN NS M.ROOT-SERVERS.NET.
;; Query time: 111 msec
;; SERVER: 66.231.91.222#53(66.231.91.222)
;; WHEN: Wed Nov 17 09:50:35 2010
;; MSG SIZE rcvd: 259
</PRE>Looking at the flags in the response note the lack of 'ra'; Recursion Available!<BR><BR>Thus the server is saying I don't know (or I wont tell you what's in my cache) and I'm not going to find an answer for you, go start looking at the root servers. Hence the +trace works.<BR><BR><BR><BR>Regards<BR>Stacey<BR>On 16/11/2010 21:00, M. Meadows wrote:
<BLOCKQUOTE cite=mid:BLU156-w388096E5F21E429FBE625AF3370@phx.gbl>
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Can someone explain the following dig results? The first dig @8.8.8.8 provides the expected result<BR> <BR> <BR>: dig +noall +answer google-public-dns-a.google.com @8.8.8.8<BR>google-public-dns-a.google.com. 85040 IN A 8.8.8.8<BR><BR>We get the same result from KLOTH.NET (<A href="http://www.kloth.net/services/nslookup.php" target=_blank>http://www.kloth.net/services/nslookup.php</A>)<BR> <BR> <BR>But when we specify the public facing exacttarget.com server<BR> <BR>: dig +noall +answer google-public-dns-a.google.com @66.231.91.222 <BR> <BR>No answer<BR> <BR>And when we use +trace ... it seems to find it's way to the correct answer.<BR> <BR>: dig google-public-dns-a.google.com @66.231.91.222 +trace<BR>; <<>> DiG 9.3.6-P1-RedHat-9.3.6-4.P1.el5_4.2 <<>> google-public-dns-a.google.com @66.231.91.222 +trace<BR>;; global options: printcmd<BR>. 3600000 IN NS A.ROOT-SERVERS.NET.<BR>. 3600000 IN NS B.ROOT-SERVERS.NET.<BR>. 3600000 IN NS C.ROOT-SERVERS.NET.<BR>. 3600000 IN NS D.ROOT-SERVERS.NET.<BR>. 3600000 IN NS E.ROOT-SERVERS.NET.<BR>. 3600000 IN NS F.ROOT-SERVERS.NET.<BR>. 3600000 IN NS G.ROOT-SERVERS.NET.<BR>. 3600000 IN NS H.ROOT-SERVERS.NET.<BR>. 3600000 IN NS I.ROOT-SERVERS.NET.<BR>. 3600000 IN NS J.ROOT-SERVERS.NET.<BR>. 3600000 IN NS K.ROOT-SERVERS.NET.<BR>. 3600000 IN NS L.ROOT-SERVERS.NET.<BR>. 3600000 IN NS M.ROOT-SERVERS.NET.<BR>;; Received 228 bytes from 66.231.91.222#53(66.231.91.222) in 1 ms<BR>com. 172800 IN NS g.gtld-servers.net.<BR>com. 172800 IN NS f.gtld-servers.net.<BR>com. 172800 IN NS l.gtld-servers.net.<BR>com. 172800 IN NS h.gtld-servers.net.<BR>com. 172800 IN NS j.gtld-servers.net.<BR>com. 172800 IN NS c.gtld-servers.net.<BR>com. 172800 IN NS i.gtld-servers.net.<BR>com. 172800 IN NS d.gtld-servers.net.<BR>com. 172800 IN NS k.gtld-servers.net.<BR>com. 172800 IN NS m.gtld-servers.net.<BR>com. 172800 IN NS a.gtld-servers.net.<BR>com. 172800 IN NS e.gtld-servers.net.<BR>com. 172800 IN NS b.gtld-servers.net.<BR>;; Received 504 bytes from 198.41.0.4#53(A.ROOT-SERVERS.NET) in 35 ms<BR>google.com. 172800 IN NS ns2.google.com.<BR>google.com. 172800 IN NS ns1.google.com.<BR>google.com. 172800 IN NS ns3.google.com.<BR>google.com. 172800 IN NS ns4.google.com.<BR>;; Received 184 bytes from 192.42.93.30#53(g.gtld-servers.net) in 75 ms<BR>google-public-dns-a.google.com. 86400 IN A 8.8.8.8<BR>;; Received 64 bytes from 216.239.34.10#53(ns2.google.com) in 39 ms<BR> <BR>What's going on?<BR> <BR>Thanks!<BR>Marty<BR> <BR> <BR> <BR><PRE><FIELDSET class=ecxmimeAttachmentHeader></FIELDSET>
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