BIND 9 - force secondary to update/refresh from primary

[atomic at people.net.au]

Karl Auer wrote:
> On Wed, 2008-08-06 at 11:55 +1000, Res wrote:
>   
>> On Wed, 6 Aug 2008, Karl Auer wrote:
>>     
>>> It won't hurt to wait ten seconds then look at the zone on the secondary
>>> to see if it has already reloaded. If it hasn't, then by all means get
>>> out the sledgehammer...
>>>       
>> Thats if he really wants to up the serials, there is no need to however.
>>     
> True - however, changing the serial number and waiting a few seconds to
> see if it's all worked the way it is supposed to work is a better
> initial step, IMHO.
>
> If it doesn't work the way it's supposed to then I guess deleting zones
> files and restarting servers is OK...
>
> Regards, K.
>
>   

Thanks for the overflowing suggestions and replies.

I tested it earlier by incrementing the serial number of a test zone in 
the primary, then reload the primary and the secondary (both running 
BIND 8.4.6). The secondary didn't update the zone until 10-15 minutes 
later and it's unclear if the delay is a constant. That's why I want to 
force a  refresh immediately instead of waiting "indefinitely".