SSO = single sign on. It means that you for instance sign on within the portal once, and are authenticated against any other app that you can reach from this portal... like a forum... or whatever.
There's different possible approaches how to pass this information. For instance using cookies, or using the mechanisms available by application servers like
tomcat ...
It was pretty much the same for the 2.x versions I guess. In upcoming version 3 I assume there will be SSO available again. Not sure if the interfaces will be the very same. But it should be fairly easy to have the SSO mechanism work in about any of the jforum versions if you have one ready
[originally posted on jforum.net by Sid]