Sexy chats for free without sign up - Bind updating outside zone
Older BIND name servers don't work this way, though.
In other words, in BIND, "minimum" is not really minimum.
Instead, BIND interprets the minimum TTL field in the SOA record as a "default" TTL.
(Newer BINDs, of course, have the explicit default TTL set with $TTL to go by.) If there is no TTL on a record, the minimum applies.
Suppose we know that one of our hosts is about to be moved to another network.