On Wednesday 11 April 2007, David Fletcher wrote: > At 13:03 11/04/2007, you wrote: > >I want to use a script to automatically backup some files from one disk to > > a second disk on the same box, using rsync. I already have fetchmail > > running as myself, and no problems with that, but the new script doesn't > > run unattended. If I select 'run now' in kcron it asks me for my > > password. When it attempts to run the unattended backup it reports > > > >Permission denied (publickey,gssapi-with-mic,password). > > > >How have I managed to screw this up? > > > >Anne > > I run backup scripts using rsync at night as cron jobs at work, but > between different machines across the network. I run the rsync and > scp commands from within scripts as sudo -u username > > The trick here is to append the ssh public key of the user you are > running the scp or rsync command as, to the ~/.ssh/authorized_keys > file of the owner of the target folder on the target machine. > > AIUI, the reasoning is that if you have authority to put your public > key onto another machine, you must therefore have authority to copy > files to it, so it has no need to ask for a password. > > BTW it's a while since I did it, but when you create an ssh key pair > I vaguely remember being asked for a password. I think you have to > make it null for the trick to work. > > Hope this helps you out. > Indirectly, it did. This is a peback situation :-) Like you, I do automated backups from this box to the one in question, and I had based my new script on the existing one. I had forgotten to remove the line referring to keychain. I've removed it now, and it appears to be running correctly. Anne
