Can I set TTL served to users in bind?

Jeff Peng pyh at
Fri Mar 9 08:22:56 UTC 2012

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.


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