rsync+ssh2

[stevenma uc shu edu]

Hi all, I'm trying to setup an rsync (version that comes with RH
6.1) between a few machines to keep patches/updates and the like in sync
accross multiple machines.

I'd like to use our existing ssh2 program for encryption/security with
rsync to do this.

The problem is, I can't get it to work WITHOUT a passphrase, using a
regular ssh2 key with its passphrase works fine, but that's useless for
automated rsync's since it'll be sitting there asking to enter a
passphrase.

What steps do you have to do to get an ssh2 key with a null password to
work?  I'm guessing there are certain settings in /etc/ssh2/sshd2_config
you have to set, but I can't figure out what!

Thanks for your help!

Matt