<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">It works because they're not using BIND. Whatever they're using doesn't enforce rules for CNAME records.<div><br></div><div>I would expect it to give inconsistent results, but I'm not 100% sure. Running some queries, I'm seeing where the query results aren't always being cached correctly, but I can't see how the bad effects would go any further than that.</div><div><br></div><div>Perhaps someone else can explain how this misbehaves in this particular situation.</div><div><br></div><div>Chris Buxton</div><div>BlueCat Networks<br><div><br><div><div>On Sep 18, 2012, at 8:08 AM, M. Meadows wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div class="hmmessage" style="font-size: 10pt; font-family: Tahoma; "><div dir="ltr"><br>Why / how does this work?<br><br>dig -t any<span class="Apple-converted-space"> </span><a href="http://www.careerone.com.au/">www.careerone.com.au</a><span class="Apple-converted-space"> </span>@ns2.tmpw.net.<br><br>; <<>> DiG 9.3.6-P1-RedHat-9.3.6-20.P1.el5_8.2 <<>> -t any<span class="Apple-converted-space"> </span><a href="http://www.careerone.com.au/">www.careerone.com.au</a><span class="Apple-converted-space"> </span>@ns2.tmpw.net.<br>;; global options: printcmd<br>;; Got answer:<br>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15513<br>;; flags: qr aa rd; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 3<br><br>;; QUESTION SECTION:<br>;www.careerone.com.au. IN ANY<br><br>;; ANSWER SECTION:<br><a href="http://www.careerone.com.au/">www.careerone.com.au</a>. 2560 IN SOA <span class="Apple-converted-space"> </span><a href="http://ns1.tmpw.net/">ns1.tmpw.net</a>.<span class="Apple-converted-space"> </span><a href="http://hostmaster.tmpw.net/">hostmaster.tmpw.net</a>. 1347892090 16384 2048 1048576 2560<br><a href="http://www.careerone.com.au/">www.careerone.com.au</a>. 14400 IN NS <span class="Apple-converted-space"> </span><a href="http://ns1.tmpw.net/">ns1.tmpw.net</a>.<br><a href="http://www.careerone.com.au/">www.careerone.com.au</a>. 14400 IN NS <span class="Apple-converted-space"> </span><a href="http://ns2.tmpw.net/">ns2.tmpw.net</a>.<br><a href="http://www.careerone.com.au/">www.careerone.com.au</a>. 14400 IN NS <span class="Apple-converted-space"> </span><a href="http://ns3.tmpw.net/">ns3.tmpw.net</a>.<br><font color="#FF0000"><a href="http://www.careerone.com.au/">www.careerone.com.au</a>. 600 IN CNAME <span class="Apple-converted-space"> </span><a href="http://www.careerone.com.au.edgesuite.net/">www.careerone.com.au.edgesuite.net</a>.</font><br><br>;; ADDITIONAL SECTION:<br><a href="http://ns1.tmpw.net/">ns1.tmpw.net</a>. 3600 IN A 208.71.198.33<br><a href="http://ns2.tmpw.net/">ns2.tmpw.net</a>. 3600 IN A 63.121.30.233<br><a href="http://ns3.tmpw.net/">ns3.tmpw.net</a>. 3600 IN A 208.71.198.34<br><br>;; Query time: 81 msec<br>;; SERVER: 63.121.30.233#53(63.121.30.233)<br>;; WHEN: Tue Sep 18 08:48:30 2012<br>;; MSG SIZE rcvd: 240<br><br><br>I thought a cname record can't coexist with any other records in a zone file. How does this even get loaded this way? What results should the owners of this domain expect? I assume they'll be inconsistent and problematic. Right?<br><br>Thanks!<br><br><br><br><br></div>_______________________________________________<br>Please visit<span class="Apple-converted-space"> </span><a href="https://lists.isc.org/mailman/listinfo/bind-users">https://lists.isc.org/mailman/listinfo/bind-users</a><span class="Apple-converted-space"> </span>to unsubscribe from this list<br><br>bind-users mailing list<br><a href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a><br><a href="https://lists.isc.org/mailman/listinfo/bind-users">https://lists.isc.org/mailman/listinfo/bind-users</a></div></span></blockquote></div><br></div></div></body></html>