On 7/29/2010 3:36 PM, Lars Hecking wrote:
>
>> Do you know if you have to do anything special in the case where the
>> primary server has been down for a while and is then brought back up?
>> That is, does the backup automatically re-sync the database with the new
>> leases that have been given out, or does it not have to?
>
> Nope, it's all automatic - that's the point, after all :)
>
> Check out the FAILOVER STARTUP section in dhcpd.conf(5).
OK, I can confirm it works. I had been putting off changing my dhcp
service for years because the last time I changed it a lot of clients
(back in Win95/98 days) didn't switch gracefully and the old dhcp server
never had downtime. But, this time everything still seems happy and
will accept the ack to continue a lease from either of the new failover
servers.
--
Les Mikesell
lesmikesell at gmail.com