<div dir="ltr">Hi David.<div>"recursion yes;" tells named that it can (if it has to) make queries to other places if it needs more information in order to answer a client query. Pure authoritative servers shouldn't need it and should have "recursion no;". So the first question is, do your servers make queries out to other places? If so, recursion must be enabled.</div><div>Secondly, do you have "minimal-responses" configured on either/both servers? If so, what is it set to? There were changes in 9.16 so maybe these explain your observations.</div><div><br></div><div>Cheers, Greg</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 24 Jan 2023 at 16:49, David Carvalho via bind-users <<a href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg4078701532777399509"><div lang="EN-GB" style="overflow-wrap: break-word;"><div class="m_4078701532777399509WordSection1"><p class="MsoNormal"><span lang="PT">Hello.<u></u><u></u></span></p><p class="MsoNormal">I hope someone could help to understand the following.<u></u><u></u></p><p class="MsoNormal">I have “<a href="http://my.domain.pt" target="_blank">my.domain.pt</a>” and a master and slave server for the “my” part. I have been using “recursion yes” in both named.conf, as I want them to be both authoritative and cache for my clients.<u></u><u></u></p><p class="MsoNormal">Last week I migrated my slave DNS server to version 9.16 and only today, after having issues with the primary server migration, I realized that for most queries, my slave DNS does not answer the “ADDITIONAL SECTION” unless I specify “+norec” with the dig command.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">My named.conf files only differ in IPs and “master/slave” setting.<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">My questions:<u></u><u></u></p><p class="MsoNormal">Should I use recursion on both? (Bear in mind that I also want them to provide chache to clients)<u></u><u></u></p><p class="MsoNormal">Why do I need “dig +norec” to get the exact output on my slave server? <u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Kind regards<u></u><u></u></p><p class="MsoNormal">David<u></u><u></u></p></div></div>-- <br>
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