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<p>Why make manual changes to the zone file? The zone is already
dynamically updated, so the usual reasons (formatting, structure,
in-line signing) don't apply.</p>
<p>Use nsupdate to add your entries. Named will update the zone,
handle updating the serial number - an even do some validation on
the records. It's easier, doesn't stop service, and because it
automates the mechanics, safer.<br>
</p>
<p>BTW: I recommend using TSIG for authorization with nsupdate
rather than IP addresses.</p>
<p><br>
</p>
<pre class="moz-signature" cols="72">Timothe Litt
ACM Distinguished Engineer
--------------------------
This communication may not represent the ACM or my employer's views,
if any, on the matters discussed.
</pre>
<div class="moz-cite-prefix">On 29-Sep-21 07:41, Frank Kyosho Fallon
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:%3CCAOuPBFBOsmSNL84MbLxiQpAYzKOTuYSKDpQvNvjLGBgfDJiw1Q@mail.gmail.com%3E">
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<div dir="ltr">Hi,
<div><br>
</div>
<div>Occasionally I need to add hosts manually to
forward/reverse lookup zones in BIND 9.16. We also have ISC
DHCP. Both are on a Mac Mini using MacPorts to install.</div>
<div><br>
</div>
<div>Since dynamic updates are continually in progress, I
understand I need to use <b>rndc</b><b> freeze zone</b> and <b>rndc</b><b>
thaw zone</b> before and after making changes (including
manually incrementing the sequence number). </div>
<div><br>
</div>
<div>Can I safely accomplish the same thing by issuing an <b>rndc
stop</b> command? Would that allow me to make zone changes
followed by an <b>rndc reload</b> command?</div>
<div><br>
</div>
<div>Also, is it safe to simply reboot the server after OS
updates, or is it necessary to manually stop the DNS server
first?</div>
<div><br>
</div>
<div>Does it matter where in the dynamically updated zone files
I insert the new host A record and PTR record?</div>
<div><br>
</div>
<div>With /etc/hosts I can add hosts on different subnets. To do
that in DNS, do I first need to add a reverse zone for the
additional subnet so that I can add PTR records to correspond
to A records in the forward zone?<br clear="all">
<div><br>
</div>
<div>Thanks for any light you can shed on this subject.</div>
-- <br>
<div dir="ltr" class="gmail_signature"
data-smartmail="gmail_signature">
<div dir="ltr">Frank Kyosho Fallon<br>
<div>My pronouns are: He, HIm</div>
</div>
</div>
</div>
</div>
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