I am testing out backuppc, which works great so far backing up windows clients on a LAN via SMB (no backup client/agent required).

However I have quite a few laptops and desktops that are in various remote locations - some of which move around.

I need some way to have that remote computer create an outgoing connection for backup purposes (Windows XP/7).

I know backuppc supports smb, rsync and 'tar', but I believe these are all connections going from the server TO the client.

SO, I either need a way to vpn the client on a timed basis, or it would be a lot better if the client could some how connect to the server (ssh?) and initiate it's own backup somehow (rsync?).

Of course this all needs to be pre-installed by me and require no maintenance by the end user, no dialogs on their side.

What do you think?