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[rdiff-backup-users] Security problem with rdiff over ssh?

From: feffer
Subject: [rdiff-backup-users] Security problem with rdiff over ssh?
Date: Thu, 27 May 2010 18:00:54 -0400

I'm running rdiff-backup over ssh with an unattended cron script using an ssh 
key-pair proceedure described here 
(http://arctic.org/~dean/rdiff-backup/unattended.html). My script works fine, 
but I'm wondering about security. It is generally considered a bad idea to 
allow root login to ssh, but I cannot preserve ownership and permissions if I 
disallow root login. 

Is this really a problem since my machines are behind a router on my LAN? The 
ssh key-pairs are not password protected, but isn't the only real security 
threat losing the private key? 

Is there a way to lock this down a bit more while still enabling unattended 


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