<div dir="ltr">Thanks for your reply.<div>Actually, I have read that docs already. However, I'm still puzzled. I'm going to add and remove DNS records against Samba with kea-dhcp hook points, which is the same as DDNS.</div><div><br></div><div>Here is the skeleton of my  bash script. Not sure if the action for each hook point is right or not. </div><div>While add_record and delete_record are public functions. </div><div>---</div><div># hook points<br>case "$1" in<br><br>        lease4_renew|lease4_recover )<br><br>        # Do nothing<br>                echo $1<br>                exit 0<br>        ;;<br><br>        leases4_committed)<br><br>                echo $1<br>                delete_record<br>                add_record<br>        ;;<br><br>        lease4_expire |lease4_release) #|lease4_decline)<br>                echo $1<br><br>                delete_record<br>        ;;<br><br>        *)<br>                echo "Unhandled function call ${*}"<br>                exit 123<br>        ;;<br>esac<br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Aug 8, 2024 at 3:38 PM Francis Dupont <<a href="mailto:fdupont@isc.org">fdupont@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">luckydog xf writes:<br>
>  I'm running External Hook Scripts now. From<br>
> <a href="https://kea.readthedocs.io/en/kea-2.6.0/arm/hooks.html" rel="noreferrer" target="_blank">https://kea.readthedocs.io/en/kea-2.6.0/arm/hooks.html</a> there are the<br>
> following hook points.<br>
<br>
=> the right documentation for writing hooks is not the ARM but<br>
the developer guide and its Hook Developer's Guide section<br>
<a href="https://reports.kea.isc.org/dev_guide/df/d46/hooksdgDevelopersGuide.html" rel="noreferrer" target="_blank">https://reports.kea.isc.org/dev_guide/df/d46/hooksdgDevelopersGuide.html</a><br>
<br>
If you can't find all answers to your questions please come back to<br>
this mailing list.<br>
<br>
BTW names as LEASES4_AT0_HOSTNAME are about a particular hook library<br>
running shell scripts described in its own section of the ARM<br>
(Run Script Support for External Hook Scripts) which in fact just<br>
exposes parameters which can be read from some callout points.<br>
<br>
Regards<br>
<br>
Francis Dupont <<a href="mailto:fdupont@isc.org" target="_blank">fdupont@isc.org</a>><br>
</blockquote></div>