dhcpd 4.4 named ddns and additional event triggers

Bill Shirley bill at c3po.polymerindustries.biz
Sat Jul 11 03:52:42 UTC 2020

I've been using "on commit" along with DNS updating for years:
on commit {
     log (
         concat (
             "Host:", pick-first-value(option fqdn.hostname, option host-name, "(none)"), "=>", pick-first-value(config-option 
server.ddns-hostname, "(none)")
             ,"  VendorId:", pick-first-value(option vendor-class-identifier, "(none)")

What is it that you want to do?


On 7/10/2020 3:15 PM, Rick Dicaire wrote:
> Hi folks, I'm using dhcp 4.4.1 with named ddns updating.
> I'm researching performing additional triggers using event interface.
> Older man pages state I cannot configure event statements if I'm using
> internal ddns mechanism, however the man page for 4.4.1 just gives a terse description of events, and makes no mention 
> whatsoever of whether event statements can be used in conjunction
> with internal ddns mechanism:
>        There are three kinds of events that can happen regarding a  lease,  and  it  is  possible  to declare  statements 
>  that  occur when any of these events happen. These events are the commit event, when the server has made a commitment of a 
> certain  lease  to  a  client,  the  release event, when the client has released the server from its commitment, and the 
> expiry event, when the commitment expires.
>        To declare a set of statements to execute when an event happens, you must use  the  on  state-ment,  followed  by  the 
> name of the event, followed by a series of statements to execute when the event happens, enclosed in braces.
> Is it now possible to configure event declarations and still use internal ddns updating?
> Thanks
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