Hi,<br><br>I am using bind9.7.3-P1 with solaris10x86.  I notice that<br>sometimes our bind server will reply servfail when querying<br>a zone <a href="http://aws.amazon.com">aws.amazon.com</a> which is expiring, while this<br>
<a href="http://aws.amazon.com">aws.amazon.com</a> only 60sec cache lifetime, eg.<br><br>> /usr/local/bin/dig a <a href="http://aws.amazon.com">aws.amazon.com</a><br><br>; <<>> DiG 9.7.3-P1 <<>> a <a href="http://aws.amazon.com">aws.amazon.com</a><br>
;; global options: +cmd<br>;; Got answer:<br>;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 26307<br>;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 1<br><br>;; QUESTION SECTION:<br>;<a href="http://aws.amazon.com">aws.amazon.com</a>.                        IN      A<br>
<br>;; ANSWER SECTION:<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         1       IN      A       72.21.210.163<br><br>;; AUTHORITY SECTION:<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         6517    IN      NS      <a href="http://ns-932.amazon.com">ns-932.amazon.com</a>.<br>
<a href="http://aws.amazon.com">aws.amazon.com</a>.         6517    IN      NS      <a href="http://ns-931.amazon.com">ns-931.amazon.com</a>.<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         6517    IN      NS      <a href="http://ns-912.amazon.com">ns-912.amazon.com</a>.<br>
<a href="http://aws.amazon.com">aws.amazon.com</a>.         6517    IN      NS      <a href="http://ns-923.amazon.com">ns-923.amazon.com</a>.<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         6517    IN      NS      <a href="http://ns-911.amazon.com">ns-911.amazon.com</a>.<br>
<a href="http://aws.amazon.com">aws.amazon.com</a>.         6517    IN      NS      <a href="http://ns-921.amazon.com">ns-921.amazon.com</a>.<br><br>;; ADDITIONAL SECTION:<br><a href="http://ns-911.amazon.com">ns-911.amazon.com</a>.      3108    IN      A       207.171.178.13<br>
<br>;; Query time: 0 msec<br>;; SERVER: 127.0.0.1#53(127.0.0.1)<br>;; WHEN: Wed Jun 22 18:59:30 2011<br>;; MSG SIZE  rcvd: 190<br><br>> /usr/local/bin/dig a <a href="http://aws.amazon.com">aws.amazon.com</a><br><br>; <<>> DiG 9.7.3-P1 <<>> a <a href="http://aws.amazon.com">aws.amazon.com</a><br>
;; global options: +cmd<br>;; Got answer:<br><b>;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 20884<br>;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0</b><br><br>;; QUESTION SECTION:<br>
;<a href="http://aws.amazon.com">aws.amazon.com</a>.                        IN      A<br><br>;; Query time: 0 msec<br>;; SERVER: 127.0.0.1#53(127.0.0.1)<br>;; WHEN: Wed Jun 22 18:59:31 2011<br>;; MSG SIZE  rcvd: 32<br><br>
> /usr/local/bin/dig a <a href="http://aws.amazon.com">aws.amazon.com</a><br>^[[A<br>; <<>> DiG 9.7.3-P1 <<>> a <a href="http://aws.amazon.com">aws.amazon.com</a><br>;; global options: +cmd<br>;; Got answer:<br>
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47970<br>;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 6, ADDITIONAL: 1<br><br>;; QUESTION SECTION:<br>;<a href="http://aws.amazon.com">aws.amazon.com</a>.                        IN      A<br>
<br>;; ANSWER SECTION:<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         60      IN      A       72.21.210.163<br><br>;; AUTHORITY SECTION:<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         6516    IN      NS      <a href="http://ns-932.amazon.com">ns-932.amazon.com</a>.<br>
<a href="http://aws.amazon.com">aws.amazon.com</a>.         6516    IN      NS      <a href="http://ns-911.amazon.com">ns-911.amazon.com</a>.<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         6516    IN      NS      <a href="http://ns-912.amazon.com">ns-912.amazon.com</a>.<br>
<a href="http://aws.amazon.com">aws.amazon.com</a>.         6516    IN      NS      <a href="http://ns-931.amazon.com">ns-931.amazon.com</a>.<br><a href="http://aws.amazon.com">aws.amazon.com</a>.         6516    IN      NS      <a href="http://ns-921.amazon.com">ns-921.amazon.com</a>.<br>
<a href="http://aws.amazon.com">aws.amazon.com</a>.         6516    IN      NS      <a href="http://ns-923.amazon.com">ns-923.amazon.com</a>.<br><br>;; ADDITIONAL SECTION:<br><a href="http://ns-911.amazon.com">ns-911.amazon.com</a>.      3107    IN      A       207.171.178.13<br>
<br>;; Query time: 229 msec<br>;; SERVER: 127.0.0.1#53(127.0.0.1)<br>;; WHEN: Wed Jun 22 18:59:31 2011<br>;; MSG SIZE  rcvd: 190<br><br><br><br>Is it normal?  What would be the problem?<br><br>Eric<br>