[BackupPC-users] [newb] ssh rsync with restricted permissions

[yilam <bac...@ba...>]

Well I tried your setup (need I say I am new to backuppc?) with on the client:

* /etc/sudoers:
Cmnd_Alias      BACKUP = /usr/bin/rsync --server --daemon *
buclient          my-host = NOPASSWD: BACKUP

* ~buclient/.ssh/authorized_keys2
no-pty,no-agent-forwarding,no-X11-forwarding,no-port-forwarding,command="sudo /usr/bin/rsync --server --daemon --config=/etc/rsyncd.conf ." ssh-rsa AAAAB....

* /etc/rsyncd.conf
uid = root
pid file = /var/lib/buclient/run/rsyncd.pid
use chroot = no
read only = true
transfer logging = true
log format = %h %o %f %l %b
syslog facility = local5
log file = /var/lib/buclient/log/rsyncd.log
[fullbackup]
        path = /var/log/exim4
        comment = backup

>From the server (backuppc machine), I can do the following:

/usr/bin/rsync -v -a -e "/usr/bin/ssh -v -q -x -2 -l buclient -i /var/lib/backuppc/.ssh/id_rsa" backuppc@192.168.1.1::fullbackup /tmp/TEST

However, I have not found the correct $RsyncClientCmd to use, for backuppc to work. The following value
$Conf{RsyncClientCmd} = '$sshPath -q -x -l buclient -i /var/lib/backuppc/.ssh/id_rsa.backuppc_casiopei $host $rsyncPath $argList+';

Gives me (using /usr/share/backuppc/bin/BackupPC_dump -v -f 192.168.1.1):
[...]
full backup started for directory fullbackup
started full dump, share=fullbackup
Error connecting to rsync daemon at 192.168.1.1:22: unexpected response SSH-2.0-OpenSSH_5.1p1 Debian-5

Got fatal error during xfer (unexpected response SSH-2.0-OpenSSH_5.1p1 Debian-5
)
[...]

And on the client, I have, in /var/log/auth.log:
Mar 30 23:35:22 my-host sshd[1389]: Bad protocol version identification '@RSYNCD: 28' from 192.168.1.22

Any ideas on how to get this to work (BTW, server is Debian/Squeeze, client is Debian/Lenny).

Thank you

tom

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