See how to add a new user in the Adding a user section.
You can sign in Social Intranet by doing as follows:
Input your Username and Password in the Connect to you account form.
Switch Remember My Login to Yes if you want to automatically return to this portal without signing in again. This feature enables you to be automatically authenticated to avoid doing an explicit authentication when you access the site.
After selecting Remember My Login, if you do not sign out when you leave the portal, you will be automatically authenticated for your next visit.
To sign out, simply click your display name on the top navigation bar, then select Logout from the drop-down menu.