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View Full Version : [ubuntu] Anyone know the details behind the "require encryption" checkbox in Remote Desktop?



antistar.
May 9th, 2008, 05:30 PM
I'm trying to find out more details regarding encryption on the Remote Desktop server/client in Hardy. Anyone have any details as to what it does/doesn't encrypt, level of encryption, protocols used etc. ?

I'm hoping that it automatically enables and sets up an SSH tunnel but I can't find any docs to support that.

Just want to make sure I have a reasonably secure connection to my Ubuntu PC back home.

I'm aware of the VNC/SSH thread here but I don't want to reinvent the wheel if it's not necessary.

Thanks!:)

timcredible
May 9th, 2008, 07:23 PM
here's the info (http://technet2.microsoft.com/windowsserver/en/library/a92d8eb9-f53d-4e86-ac9b-29fd6146977b1033.mspx?mfr=true) on RDP encryption (RDP is the protocol windows uses for remote desktop). imho, rdp and xdm are much better than vnc because they are native to their respective OS.

cdenley
May 9th, 2008, 07:37 PM
I think he was referring to vino, which can be configured at...

System>Preferences>Remote Desktop

All you need to enable and setup a server which supports SSH tunneling is to install an ssh server. It is up to the client to establish the SSH connection with a port-forwarding option, then connect to the VNC server though the encrypted tunnel. I don't think the option you are referring to prevents vino from listening on external interfaces, but forces the clients to use TLS/SSL (if supported). This would be a simpler solution so you only have to authenticate once with a single client. I'm not sure how vino's encryption compares to ssh.

http://www.gnome.org/~markmc/remote-desktop.html#encryption

Darrena
May 9th, 2008, 09:22 PM
It looks like it is TLS for the password:
http://www.gnome.org/~markmc/remote-desktop.html

However it looks like the RFB stream is still not encrypted and I don't know all the details on how the certificates were generated for TLS encryption.

So I would recommend that you just tell Vino to only accept local connections and tunnel your connection over SSH if security is important.

antistar.
May 14th, 2008, 07:25 PM
Sounds good - better safe than sorry :)