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<p class="MsoNormal">They are a consequence of a slave not being able to perform a refresh from the master for a while. This may be because the zone is removed from the master (but someone overlooked removing it from the slave(s) as well), bad permissions set
on the master, a communications error, to name a few. If your EXPIRE is too low, you don’t give yourself enough time to catch and correct those errors.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> - Kevin<o:p></o:p></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> bind-users-bounces@lists.isc.org [mailto:bind-users-bounces@lists.isc.org]
<b>On Behalf Of </b>Lucio Crusca<br>
<b>Sent:</b> Monday, July 13, 2015 2:15 PM<br>
<b>To:</b> bind-users<br>
<b>Subject:</b> Re: servfail only for a zone<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">Il 13/07/2015 19:51, Darcy Kevin (FCA) ha scritto:<o:p></o:p></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif"">Half an hour is ridiculous, to be honest. Unless you have 24x7x365 eyes-on-glass looking for zone transfer failures
<b>constantly</b> and ready and able to <b>instantly</b> pounce on any such problems and fix them within minutes.</span><o:p></o:p></p>
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You have been persuasive enough, I'm definitely going to raise the expire value, but now the question is: are the SERVFAIL replies a consequence of the low expire value?<o:p></o:p></p>
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