running scp or rsync from a script

[Ryan Golhar]

I'm using RSA keys, with ssh.  For instance, nightly I have a backup
server copy all the home directories of users to a disaster-recovery
machine:

rsync -az --delete -e /usr/bin/ssh aspartic:/home/* /home

The server isn't getting rebuilt so the keys will never change.  In the
rare case they do, I'll just regenerate the keys...

Ryan


-----Original Message-----
From: redhat-list-bounces at redhat.com
[mailto:redhat-list-bounces at redhat.com] On Behalf Of Chris Purcell
Sent: Wednesday, July 28, 2004 11:36 AM
To: redhat-list at redhat.com
Subject: running scp or rsync from a script


I have a bunch of Linux workstations that need to copy files to a
central
server via cron daily.   I want to set up either an scp or rsync script
(either Perl or bash), but the problem is the password prompt.  There
doesnt' seem to be anyway to enter a password into an scp script, but
with rsync I can use the --password-file=FILE option only if the central
server
is running the rsyncd daemon.   I'd much rather use scp than have to run
an rsync server.   I guess my only option with scp would be to set up
RSA/DSA keys.   The workstations will scp to the server as a user called
"tc", not root.   It would be way too much work having to copy
certificates from each workstation to the server so I was wondering if
its possible to allow anybody to ssh/scp into the central server as the
user
"tc" without entering a password?    The user "tc" has very limited
access
and the server is on a LAN, so security isn't an issue here.  Does
anyone have any other ideas on how to go about doing this?

Thanks,
Chris



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