Kenneth Porter wrote:
> I'm setting up some Raspberry Pis and I set up BackupPC to back them up
> using ssh+rsync. I installed the key in ~backuppc/.ssh/authorized_keys but
> the initial backup was still failing.
Unless things have changed (and they might have, but I still do it
this way), then the public key needs to go into /root/.ssh/authorized_keys.
Backuppc (on your backuppc server) needs root access to the client in
order to be able to read all of the files it needs. (You could use a
different user id on the client if you're sure that user can read all
the files which need to be backed up.)
> So I tried manually ssh'ing into the
> Pi and discovered I was hitting the question to add the Pi to known_hosts.
> I don't see this mentioned in the documentation. I'm not sure where it
> would even go, but I wanted to mention it as I'll likely forget this a year
> from now.
You should be trying to manually ssh from the backuppc account, and
you should be trying to become root on the client. I usually do this:
sudo su - backuppc # take on the identity of backuppc
ssh root@clientmachine # log in to the client as root
id # verify identity on client
exit # leave the client
exit # resume your normal identity
When you hit that "add to known hosts?" question from ssh, just answer
"yes". ssh will put the key in the right place (which is in
~backuppc/ssh/known_hosts). Don't forget to exit out of both the ssh
and the "sudo su" after you've tested.
paul
=----------------------
paul fox, p...@foxharp.boston.ma.us (arlington, ma, where it's 73.1 degrees)
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