In article <mailman.427.1518103401.749.bind-us...@lists.isc.org>, Reindl Harald <h.rei...@thelounge.net> wrote:
> frankly, even *if* i pay for the service i would call it a good citizen > to produce less load and the "minimum-ttl" also reduces load from other > RBL's without any restriction If the service provider is worried about load, they should increase their TTL to reduce the frequency of queries. It's not your job to second-guess them. There are some servers that will avoid expiring records if the auth servers stop responding, as a fail-safe mechanism. I think Google Public DNS does this. So they obey TTL when deciding when to try to refresh the cache, but will continue returning whatever they've cached if necessary. -- Barry Margolin Arlington, MA _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users