Download:
SoftClient: http://wikis.sun.com/display/SRS5/Home#tab:SRS-5-Documentation

Configuration:
Point a web browser at the Sun Ray server. http://:1660. You will then need to provide the administrative credentials to log into the site. Once into the site you need take the following steps:

1. Click on the Advanced Tab
2. Click on the Systems Policy Sub Tab
3. Check the Software Client Access check box
4. Click on Save

Restart the Server - Click on the servers tab

1. tick the checkbox in front of your server name
2. click on cold restart

The system will go through a dialog about the server restarting.

Done!

Taken from: http://blogs.sun.com/acworkma/entry/how_to_configure_srss_4