caching only and /etc/resolv.conf - new user

[Brian O'Gorman]

Why would I need to have an entry in the /etc/resolv.conf on the machine
which is running DNS as follows

nameserver 127.0.0.1

Yes,  I know this the local loopback IP, but what good does it do in
this file? The O'Reilly book  in chapter 6
says it is for hosts that don't understand the zero address.

Do other UNIX machines on my network need a local loopback entry their
/etc/resolv.conf, or may they just point to the machine running DNS?


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