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<div dir="ltr" data-setdir="false">Thanks for your reply, I certainly appreciate it.</div><div><br></div>
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On Tuesday, September 5, 2023 at 12:24:30 PM CDT, Fred Morris <m3047@m3047.net> wrote:
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<div><div dir="ltr">On Tue, 5 Sep 2023, Leroy Tennison via bind-users wrote:<br clear="none">> <br clear="none">> After some recent upgrading it was discovered that both DNS servers were <br clear="none">> configured as master. I'm assuming i can use <br clear="none">> <a shape="rect" href="https://kb.isc.org/docs/managing-manual-multi-master" rel="nofollow" target="_blank">https://kb.isc.org/docs/managing-manual-multi-master</a> to "demote" one of <br clear="none">> them but is there anything to look for concerning possible <br clear="none">> inconsistencies and how do I check for those issues?<br clear="none"><br clear="none">Before you do anything, back up both zone files!<br clear="none"><br clear="none">Merge and deconflict any differences. Set the "true" master to a higher <br clear="none">serial number. Disable zone updates on the secondary.<br clear="none"><br clear="none">Pause for a scream test.<br clear="none"><br clear="none">Then "the usual" applies: set one of them to be a secondary and the master <br clear="none">to allow zone transfers from it. Configure Notify if desired.<br clear="none"><br clear="none">Make sure it works, i.e. a zone transfer (AXFR / IXFR) occurs and the <br clear="none">correct serial number is represented in the SOA.<br clear="none"><br clear="none">Pause for another scream test.<br clear="none"><br clear="none">--<br clear="none"><br clear="none">Fred Morris<div class="ydpbfd98666yqt7795005335" id="ydpbfd98666yqtfd81175"><br clear="none"><br clear="none">-- <br clear="none">Visit <a shape="rect" href="https://lists.isc.org/mailman/listinfo/bind-users" rel="nofollow" target="_blank">https://lists.isc.org/mailman/listinfo/bind-users</a> to unsubscribe from this list<br clear="none"><br clear="none">ISC funds the development of this software with paid support subscriptions. Contact us at <a shape="rect" href="https://www.isc.org/contact/" rel="nofollow" target="_blank">https://www.isc.org/contact/</a> for more information.<br clear="none"><br clear="none"><br clear="none">bind-users mailing list<br clear="none"><a shape="rect" href="mailto:bind-users@lists.isc.org" rel="nofollow" target="_blank">bind-users@lists.isc.org</a><br clear="none"><a shape="rect" href="https://lists.isc.org/mailman/listinfo/bind-users" rel="nofollow" target="_blank">https://lists.isc.org/mailman/listinfo/bind-users</a><br clear="none"></div></div></div>
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