[Autogenerated] How long can a host keep A
dean is record in their cache. It depends,
of course. Only the authoritative servers
for the zone have their records on their
hard drive. Therefore, each response that
both dina servers and clients receive is
cashed. Whoever creates the zone gets to
decide how much time that should be.
That's the time to live or T t. L,
however, will discover it is not carved in
stone. The T t l is actually just a
suggestion. A T t. L is measured in
seconds. Whoever creates the zone gets to
decide in Microsoft Windows DNS server
that time to Livas for the entire zone.
However, in the Linux based Bind Software,
which is the most popular Dina server type
on the Internet, you can give a different
T T L to each individual record. Most
people choose T t l based on the record
type, though. For example, all my email
servers would have the same T TL. But that
might be different from the T. T L from my
name server, for example, or it could be
different. The DNA's administrator for the zone makes that decision