WML Sumo Thin Client User Guide
Optional: NX key
NX connections use SSH to encrypt the connection between the client and server and as such NX is
the most secure graphical thin client connection available. The login process uses a two-stage
process. The first login uses a key-based login. A standard NX key is supplied as a default, and
using this key, a client can proceed to the second secure login, which uses a password as
authentication token. If you use the default NX key on your server, then any client can pass the
stage 1 login, and can attempt to use password based login to gain access to the server. This remains
secure, but relies on quality passwords.
To increase the security of your connection, you can replace the default key on your NX server.
Please refer to Nomachine's documentation on setting up the NX server. Once you have generated a
non-standard key for the stage 1 login, you need to load it onto your Sumo thin client. Put the key
file on a USB pen-drive and plug it into your Sumo. Press the “Manage Key” button in the NX
Connection Details window. The Public SSL Key window will appear. While you could technically
type in the key, it would be a thankless task. Press the “Change Key” button to open a file dialog,
which will allow you to find the key on your USB drive.
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Copyright © 2006 William Matthew Limited. All rights reserved
Illustration 18: Managing the NX SSL key
