[CentOS] DHCP failover ... Some questions.

Fri Jul 30 15:17:56 UTC 2010
Les Mikesell <lesmikesell at gmail.com>

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 

   Les Mikesell
    lesmikesell at gmail.com