Can I set TTL served to users in bind?

[Cathy Almond]

On 09/03/12 08:22, Jeff Peng wrote:
> 于 2012-3-9 16:11, Drunkard Zhang 写道:
>> I got some bind servers doing iteration resolution, and return the
>> results to users. But I found that some names got too big TTLs, whose
>> RRs can not be replaced correctly by new RRs in time. This leads to
>> user‘s blame, we have to flush the caches by hand, and restart the
>> SOHO router to resolve the "dead site" issue.
>>
>> So I wonder can bind set a (lower) TTL by force before response to
>> users. If I can, which option? I digged ARM, but got nothing.
> 
> 
> Many ISP's caching DNS servers do this stuff.
> AFAIK there is not such an option for that, but you can do it from
> BIND's source.

max-cache-ttl ?