<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>The OP's question was about setting up BIND, not MS DNS, related to using Samba, not Windows, as the domain controller.</div><div id="AppleMailSignature"><br></div><div id="AppleMailSignature">Regards,</div><div id="AppleMailSignature">Chris<br><br>Sent from my iPhone</div><div><br>On Jul 27, 2016, at 12:36 PM, Darcy Kevin (FCA) <<a href="mailto:kevin.darcy@fcagroup.com">kevin.darcy@fcagroup.com</a>> wrote:<br><br></div><blockquote type="cite"><div>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">My preference? Have all your clients use BIND to resolve DNS (this gives access to more advanced features like sortlisting, good query logging, blacklisting/redirection
through the RPZ mechanism, Anycast, etc.). Set up the BIND instances as slaves for the AD zones, and have the AD folks add the BIND instances to the apex NS records so that the DCs will trigger fast replication to BIND via the NOTIFY extension to the protocol.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">I’d never let a regular PC client use Microsoft DNS for resolving DNS. Perish the thought!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">Note that this approach, if implemented simply, doesn’t scale to large numbers of BIND instances (because you don’t want to add dozens or hundreds of apex NS
records to the zone). Beyond a certain threshold, you’d want to set up a multi-level slaving/NOTIFY hierarchy on the BIND side…<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">
- Kevin<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><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>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><image001.jpg></span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black">----------------------------------------------------------------------<o:p></o:p></span></b></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial Black","sans-serif";color:black">Kevin Darcy</span><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black"><br>
NAFTA Information Security Projects</span><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial Black","sans-serif";color:black">FCA US LLC<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">1075 W Entrance Dr,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Auburn Hills, MI 48326<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">USA<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Telephone: +1 (248) 838-6601
<br>
Mobile: +1 (810) 397-0103<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:black">Email: <a href="mailto:kevin.darcy@fcagroup.com">kevin.darcy@fcagroup.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:black"><o:p> </o:p></span></p>
<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 [<a href="mailto:bind-users-bounces@lists.isc.org">mailto:bind-users-bounces@lists.isc.org</a>]
<b>On Behalf Of </b>Jeff Sadowski<br>
<b>Sent:</b> Wednesday, July 27, 2016 3:00 PM<br>
<b>To:</b> <a href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a><br>
<b>Subject:</b> Re: Multiple AD domains<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">should I setup 192.168.1.1 as slaves to these two domains would that fix it?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Wed, Jul 27, 2016 at 12:56 PM, Jeff Sadowski <<a href="mailto:jeff.sadowski@gmail.com" target="_blank">jeff.sadowski@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">On the samba mailing list they described setting up the DC as the NS and forward to another machine for more rules.<o:p></o:p></p>
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<p class="MsoNormal">This will work fine for one domain. Now lets say I have 2 domains.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">If I setup forwarders like so on 192.168.1.1<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">zone "domainA" IN { type forward; forward only; forwarders { 192.168.2.1; }; };<o:p></o:p></p>
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<p class="MsoNormal">zone "domainB" IN { type forward; forward only; forwarders { 192.168.3.1; }; };<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">It will cache entries for each domain and if a computer gets a different address for dhcp it will update on the domain's DNS but the dns on 192.168.1.1 will have a cached entry untill it expires.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">192.168.2.1 and 192.168.3.1 are setup to forward all other zones than their domain names to 192.168.1.1<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
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<p class="MsoNormal">if I have DNS server set for all machines in domainA to 192.168.2.1 all machines on domainA see any DNS changes to domainA imediately machines on domainB are cached and can take time to clear out.<o:p></o:p></p>
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<p class="MsoNormal">And<o:p></o:p></p>
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<p class="MsoNormal">if I have DNS server set for all machines in domainB to 192.168.3.1 all machines on domainB see any DNS changes to domainB imediately machines on domainA are cached and can take time to clear out.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">What is the best way to resolve this issue?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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