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<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060">If IPv6 were disabled, named wouldn’t even get that far, trying to use it.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060">I saw speculation on another forum that these messages are caused by morons using AAAA records that point to “fe80::”, possibly
as a misguided attempt to thwart malware. Although that’s legal to put into DNS, it’s not a legal address at lower levels of the IPv6 protocol stack, so named is going to generate errors when it tries to use it.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060">The suggestion was to mark the entire IPv6 link-local range (fe80::/10) as “bogus” in named.conf, assuming one isn’t doing any unusual
DNS-over-IPv6 testing that would require it. This is a more surgical and future-friendly approach than disabling IPv6 altogether.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#002060">
- Kevin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> bind-users-bounces@lists.isc.org [mailto:bind-users-bounces@lists.isc.org]
<b>On Behalf Of </b>Charles Swiger<br>
<b>Sent:</b> Friday, August 07, 2015 3:55 PM<br>
<b>To:</b> Dimitri Yioulos<br>
<b>Cc:</b> bind-users@lists.isc.org<br>
<b>Subject:</b> Re: Log output questions<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">On Aug 7, 2015, at 12:48 PM, Dimitri Yioulos <<a href="mailto:dyioulos@netatlantic.com">dyioulos@netatlantic.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Hello, all.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">I’m pretty new to BIND, and am tasked with monitoring several BIND server. A script is in place that runs hourly, via cron, looking for any anomalies in named.log. Here’s
the essence of the script:<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif""> <o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">grep -i -E ': error: '|grep -i -E -v 'view external: update |view external: zone transfer|socket.c:5268: unexpected error:|connect(fe80::#53) 22/Invalid argument|unable to
convert errno to isc_result: 92: Protocol not available|socket.c:1700: unexpected error:|errno2result.c:110: unexpected error:|22/Invalid argument|socket.c:4381: unexpected error:|socket.c:1890: unexpected error:'<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Your script leads me to believe that you have IPv6 networking disabled.<o:p></o:p></p>
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<p class="MsoNormal">Try running named with -4 flag or get IPv6 working.<o:p></o:p></p>
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<p class="MsoNormal"><br>
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<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">06-Aug-2015 09:29:01.616 general: error: zone<span class="apple-converted-space"> </span><a href="http://somedomain.com/IN/internal:"><span style="color:#954F72">somedomain.com/IN/internal:</span></a><span class="apple-converted-space"> </span>has
0 SOA records<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That usually means you've setup a zone and the SOA record doesn't match or is otherwise invalid.<o:p></o:p></p>
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<p class="MsoNormal">See what "named-checkzone <a href="http://somedomain.com">somedomain.com</a>" says.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p class="MsoNormal">-Chuck<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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