Subject: Re: Adding TTL information to gethostbyname() and friends
To: Love <lha@stacken.kth.se>
From: Henry B. Hotz <hotz@jpl.nasa.gov>
List: tech-net
Date: 06/03/2003 12:54:30
At 1:07 AM +0200 6/3/03, Love wrote:
>"Greg A. Woods" <woods@weird.com> writes:
>
>>  It is never "right" for an application to cache DNS information and thus
>>  it is never "right" for an application to need the DNS TTL values.
>
>When the application is something that implements a filesystem, I would say
>its never "right" to query the DNS server for ever request to the
>fileserver. Thus, you want to cache in the application.

The CellServDB stores IP numbers so I guess this is moot for AFS, but 
not for network file systems in general.

Does Arla back up to DNS lookup for file servers or only for Kerberos 
servers?  If so does it requery DNS when the connection fails?
-- 
The opinions expressed in this message are mine,
not those of Caltech, JPL, NASA, or the US Government.
Henry.B.Hotz@jpl.nasa.gov, or hbhotz@oxy.edu