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Decelerating Delat S
July 31, 2006, 10:47 pm

Samba Tunnel via SSH and PuTTY

Posted by RenEnergi in Information Technology
Rating: 0/5   Votes : 0

After trying several methods to create an over-the-Internet backup of my computer, I have settled on the SMB/CIFS tunnel through SSH using PuTTY.

I needed a way to do the backup across the Internet so that when I go to Wilkes-Barre this fall, my computer data will continue to be backed up to a secure remote location (e.g. Somewhere near Selinsgrove). I have a 200GB Maxtor Shared Storage drive that interfaces via the network, and the only way that it exposes itself is using SMB and CIFS protocol. I use an awesome freeware program called SyncBack to do my backups and synchronizations. Syncback can work with FTP servers as well as local and network drives. Here were my ideas to run a backup from my computer, over the Net, to this Shared Storage drive:

  1. Syncback -> FTP -> SSH Tunnel -> FTP Server on Linux Box -> smbmount -> Maxtor drive
  2. Syncback -> FTP -> Mindterm FTP-to-SFTP Bridge -> Linux Box -> smbmount -> Maxtor Drive
  3. Syncback -> SSH Tunnel -> Linux Box just to route packets to Maxtor Drive -> Maxtor Drive

Option 1 was far too complicated and over-engineered and there were far too many things that could fail.

Option 2 I tried and it failed. Mindterm just kept losing connection with the SFTP system on the server. I think that maybe the old laptop that I am using as a server couldn't handle the load (I was testing on the LAN. When I am on the Internet, the maximum will be 3 Mb/s as our cable modem service has a 3 Mb/s download.)

Option 3 - I followed These Simple Instructions and it worked like a charm...and I didn't even have to reboot the computer! I tried this setup about two years ago for a remote access application and it didn't work. Why didn't it work? I didn't read the instructions all the way through! Always read the instructions...I've learned the hard way too many times!

It works beautifully over the LAN, I have a key set up on the server and PuTTY's "Pageant" program that keeps keys in memory. That way, Syncback starts PuTTY and the tunnel using a restricted user (backup) to run the tunnel, then SyncBack goes and does its thing.

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