<span style="font-family: verdana,sans-serif;">Hi All ,</span><br style="font-family: verdana,sans-serif;"><span style="font-family: verdana,sans-serif;"> </span><br style="font-family: verdana,sans-serif;"><br style="font-family: verdana,sans-serif;">
<font size="2"><span style="font-family: verdana,sans-serif;">I have three DNS servers which are running ISC BIND version 9.4.3-P3. I have observed named hang when trying to shutdown the nameserver using "rndc stop" from time to time (once in two weeks). </span><br style="font-family: verdana,sans-serif;">
<br style="font-family: verdana,sans-serif;"><span style="font-family: verdana,sans-serif;">I shutdown my DNS servers each night and sometimes my named faces this hang. At that time , I do not see the 'exiting' message when I observe the shutdown message sequence as shown:</span><br style="font-family: verdana,sans-serif;">
<br style="font-family: verdana,sans-serif;"><br style="font-family: verdana,sans-serif;"><span style="font-family: courier new,monospace; color: rgb(255, 0, 0);">named[21063]: shutting down: flushing changes</span><br style="font-family: courier new,monospace; color: rgb(255, 0, 0);">
<span style="font-family: courier new,monospace; color: rgb(255, 0, 0);">named[21063]: stopping command channel on 127.0.0.1#953</span><br style="font-family: courier new,monospace; color: rgb(255, 0, 0);"><span style="font-family: courier new,monospace; color: rgb(255, 0, 0);">named[21063]: no longer listening on 202.156.1.67#53</span><br style="font-family: courier new,monospace; color: rgb(255, 0, 0);">
<span style="font-family: courier new,monospace; color: rgb(255, 0, 0);">named[21063]: no longer listening on 127.0.0.1#53</span><br style="font-family: courier new,monospace; color: rgb(255, 0, 0);"><span style="font-family: courier new,monospace; color: rgb(255, 0, 0);">named[21063]: no longer listening on 202.156.1.68#53 </span><br style="font-family: courier new,monospace; color: rgb(255, 0, 0);">
<span style="font-family: courier new,monospace; color: rgb(255, 0, 0);"> <-------<b>-'exiting' message not shown</b></span><br style="font-family: verdana,sans-serif;"><br style="font-family: verdana,sans-serif;">
<span style="font-family: verdana,sans-serif;">The 'ps' output still shows named running, but it does not respond to queries.</span><br style="font-family: verdana,sans-serif;"><br style="font-family: verdana,sans-serif;">
<span style="font-family: verdana,sans-serif;">Can anyone explain this not-so-frequent behaviour while doing the shutdown ? </span><br style="font-family: verdana,sans-serif;"><br style="font-family: verdana,sans-serif;">
<span style="font-family: verdana,sans-serif;">Regards,</span><br style="font-family: verdana,sans-serif;"><span style="font-family: verdana,sans-serif;">Kalpesh </span></font><br><br>