Re: easy to understand definitions

In article <d1s41h$1985$1@sf1.isc.org>, Bob Lockie <bjlockie@lockie.ca>
wrote:

> I don't understand "expire" and "refresh", it would seem that "expire"
> should always be equal to the "refresh" time"?

That would effectively negate the value of having slave servers. The
point of multiple servers is fault-tolerance. You want the slaves to
continue serving the zone when the master has failed, don't you? If you
set Expire == Refresh, then when the slave checks whether a zone
transfer is needed, and doesn't get an answer from the master, it will
stop answering for the zone, and you'll have *no* servers responding.

--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***