[Samba] run script on domain join

Arnaud FLORENT aflorent at iris-tech.fr
Wed May 23 08:09:42 UTC 2018

hi Roland

thanks for your help

Le 23/05/2018 à 09:58, Rowland Penny via samba a écrit :
> On Wed, 23 May 2018 09:36:48 +0200
> Arnaud FLORENT via samba <samba at lists.samba.org> wrote:
>> the host has first an address in dhcp pool between
>> (it is not known by dhcpd with a fixed ip address)
>> i would like to add a dhcpd record to provide always same ip to host
>> (ie fixed-address
>> when host is joined to my samba domain
>> in NT PDC, i can do that with  "add machine script" in smb.conf
>> but in AD DC, this script is not run
>> so i m searching another way to run a script when a computer join the
>> AD DC domain
> Why do you feel the computers must have a fixed ipaddress ?
it is easier to identify hosts with fixed adresses (ie allow/deny access 
by ip in firewall for example)
> But if you must give them a fixed ipaddress, you may be able to do this
> with a variation on this:
> https://wiki.samba.org/index.php/Configure_DHCP_to_update_DNS_records_with_BIND9
> That just updates a computers records in AD after a lease is granted,
> but I think you should be able to use this as a basis to do what you
> want.
> Your script would have to check that /etc/dhcp/dhcpd.conf doesn't
> already contain the computers MAC and if not add something like this:
> host <shorthostname of client> {
>             next-server dc.your-domain.com;
>             hardware ethernet 00:02:c3:d0:e5:83; < MAC address of client
>             fixed-address; < IP you require
> }
> It will probably be a bit more complex than this and I say it 'may'
> work, because I have never tried it.
i m currently trying this method.

but it seems i can not restart dhcpd from itself to reload new record

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