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<div class="moz-cite-prefix">On 4/27/2021 12:14 PM, Grant Taylor via
bind-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:a5f1954a-a53f-e0d9-04f6-bbeb1313adf3@spamtrap.tnetconsulting.net">
<blockquote type="cite" style="color: #007cff;">and change
resolve.conf to 127.0.0.1 for the best RBL performance.
<br>
</blockquote>
<br>
How much effective performance difference does the loopback
interface (lo) vs the local LAN interface (eth0) make?
<br>
<br>
Similarly, how much effective performance difference does an on
host instance of BIND make vs across the LAN to another host in
the same site make?
<br>
<br>
I absolutely agree that a <i class="moz-txt-slash"><span
class="moz-txt-tag">/</span>local<span class="moz-txt-tag">/</span></i>
<i class="moz-txt-slash"><span class="moz-txt-tag">/</span>to<span
class="moz-txt-tag">/</span></i> <i class="moz-txt-slash"><span
class="moz-txt-tag">/</span>the<span class="moz-txt-tag">/</span></i>
<i class="moz-txt-slash"><span class="moz-txt-tag">/</span>network<span
class="moz-txt-tag">/</span></i> caching DNS server is a boon
for email. -- Definitely avoid simply relying on big 3rd party
resolvers across the Internet.
</blockquote>
<p>Agreed on the OT and good subject change. <br>
</p>
<p>For me, I wouldn't bind DNS to the eth0, just another attack
surface hence I would use local loopback.</p>
<p>Having a DNS on the lan is good too but caching on any mail
server is good. There are a lot of DNS queries for email and
anti-spam. <br>
</p>
<p>But the key takeaway is don't use something like quad-8.</p>
<p>Regards,</p>
<p>KAM<br>
</p>
<div class="moz-signature">-- <br>
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<p> </p>
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<strong style="font-size: 22px;">Kevin A. McGrail</strong><br>
<em style="font-size:17px;">CEO Emeritus</em><br>
<strong style="font-size: 18px;">Peregrine Computer
Consultants Corporation</strong><br>
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<td style="height: 17px; width: 212px;
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