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<p class="MsoNormal">Hello!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="DE">Version: 9.18.30-1+ubuntu24.04.1+deb.sury.org+1<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><o:p> </o:p></span></p>
<p class="MsoNormal"> masters {<o:p></o:p></p>
<p class="MsoNormal"> AA.BB.4.13 key rcodezero;<o:p></o:p></p>
<p class="MsoNormal"> 2xxx:xxx:9c:2031::4 key rcodezero;<o:p></o:p></p>
<p class="MsoNormal"> AA.BB.6.13 key rcodezero;<o:p></o:p></p>
<p class="MsoNormal"> 2xxx:xxx:40:2031::4 key rcodezero;<o:p></o:p></p>
<p class="MsoNormal"> <span lang="DE">};<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE"><o:p> </o:p></span></p>
<p class="MsoNormal">For some reason, the last 2 IP addresses are currently not responding to requests. Nevertheless our Bind secondary tries to contact them. That confuses me, as I read quite some time that a NOTIFY (regardless of the src-IP) just triggers
a freshness check and during the freshness check, Bind uses the configured masters in the order of the configuration.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is a log excerpt:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">10:47:48 zone redacted/IN: transferred serial 1106744096: TSIG 'rcodezero'<o:p></o:p></p>
<p class="MsoNormal">10:47:48 transfer of 'redacted/IN' from AA.BB.4.13#53: Transfer status: success<o:p></o:p></p>
<p class="MsoNormal">10:47:48 transfer of 'redacted/IN' from AA.BB.4.13#53: Transfer completed: 1 messages, 60 records, 9138 bytes, 0.026 secs (351461 bytes/sec) (serial 1106744096)<o:p></o:p></p>
<p class="MsoNormal">10:47:48 zone redacted/IN: sending notifies (serial 1106744096)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">10:47:53 zone redacted/IN: notify from AA.BB.4.13#49819: serial 1106744098: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:47:53 zone redacted/IN: notify from 2xxx:xxx:9c:2031::4#32880: serial 1106744098: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:47:53 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744098: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:47:53 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744098: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:47:58 zone redacted/IN: notify from AA.BB.4.13#49819: serial 1106744099: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:47:58 zone redacted/IN: notify from 2xxx:xxx:9c:2031::4#36818: serial 1106744099: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:47:58 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744099: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:47:58 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744099: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:03 zone redacted/IN: notify from AA.BB.4.13#49819: serial 1106744100: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:03 zone redacted/IN: notify from 2xxx:xxx:9c:2031::4#56591: serial 1106744100: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:03 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744101: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:03 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744101: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:08 zone redacted/IN: notify from AA.BB.4.13#49819: serial 1106744101: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:08 zone redacted/IN: notify from 2xxx:xxx:9c:2031::4#37105: serial 1106744101: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:14 zone redacted/IN: notify from AA.BB.4.13#49819: serial 1106744102: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:14 zone redacted/IN: notify from 2xxx:xxx:9c:2031::4#36695: serial 1106744102: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:14 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744102: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:14 zone redacted/IN: notify from 2xxx:xxx:40:2031::4#48244: serial 1106744102: refresh in progress, refresh check queued<o:p></o:p></p>
<p class="MsoNormal">10:48:18 zone redacted/IN: refresh: retry limit for primary AA.BB.6.13#53 exceeded (source 83.136.34.6#0)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So, the last inbound XFR was successful performed using the first configured master. Hence, that master should not be tagged as “down”.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">A few seconds later, the received NOTIFY is ignored with “refresh check queued”. That is strange as nobody triggered a refresh and SOA refresh is high and max-refresh-time=300.<o:p></o:p></p>
<p class="MsoNormal">Anyway the “refresh in progress” takes very long, and after 30s the reason is obvious: retry limit for primary AA.BB.6.13#53 exceeded<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So why is Bind using a master for refresh which is not the first in the list?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Klaus<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="mso-ligatures:none">-- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none">Klaus Darilion, Head of Operations<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-AT" style="mso-ligatures:none">nic.at GmbH, Jakob-Haringer-Straße 8/V<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="DE-AT" style="mso-ligatures:none">5020 Salzburg, Austria<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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