Simple Zone file question

[Roy Arends]

On Wed, 29 Mar 2000, Roy Arends wrote:

> 
> On Wed, 29 Mar 2000, Aaron Anderson wrote:
> 
> > Here's a quicky, can someone tell me the difference b/t refresh, expire,
> > and minimum in a zone file.  Which one controls how long that zone file
> > is cached on a DNS server???   Basically my ISP will be changing my IP
> > soon, and I would like to reduce the possible problems with name servers
> > that will cache my old IP.   If I understand correctly, one of the above
> > settings controls how long the zone file is cached on a server.  If so
> > which one?
> > 
> > Thanks,
> > 
> > Aaron
> 
> Okay, after REFRESH seconds the slave contacts the master for a new copy
> of the zone. If this fails, it waits RETRY seconds before it's trying to
> get it again. 

> It stops retrying after EXPIRE seconds. 

This must be: EXPIRE specifies the time it waits until the zone is no
longer authoritative.

> These are the values
> with regards to primary & secondary (or slave) zone's.  MINIMUM stands for
> minimum TTL. This controls how long other servers will cache 
> no-such-domain (NXDOMAIN) responses from you.
> 
> If any, you probably want to change REFRESH. 
> 
> Regards,
> 
> Roy
> 
> 
> 
> 
> Now and then an innocent person is sent to the legislature.
> -- 
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