Community Building with ChatSpace Server Manual

Client Classes
Client classes provide another method of controlling access to your site.
Client classes can be used to limit the domains that can connect to your site,
and also can be used to control the type of clients that can access the site.
Restricting to Specific Internet Domains
ChatSpace’s Client Classes can be used to restrict access. Each user
attempting to access a ChatSpace server must be assigned to a Client Class.
The ZDEFAULT class allows all users to access from any TCP/IP Hostname
or IP Address, and without a password. If your member base is known to
have a predictable TCP/IP hostname pattern or only a certain range of IP
addresses from which they access the community, Client Classes can be
created to match those patterns – permitting access only from those IP
Addresses/hostnames. This mechanism can be used to create a virtual
private community over the public Internet, analogous to a virtual private
network.
For example, if the Acme corporation (domain name acme.com) desired to set
up a community accessible to only acme employees, spread out all over the
world in various Acme facilities, the ZDEFAULT client class could be edited
to require a TCP/IP hostname pattern of *.acme.com. The asterisk (*)
indicates that any text may appear prior to the acme.com.
Blocking use of IRC Clients
The Client Class also provides a simple control for preventing IRC Clients
from being used on your site. They can be set to allow any user to use IRC
Clients, Room Moderators (and above) only, Administrators only, and no
access at all for IRC clients.
Single Sign-on Access
You can incorporate a single sign-on feature that eliminates the need for
users log in a second time when accessing ChatSpace after they have already
logged on to the web site from which ChatSpace is accessed. The instructions
for setting up this feature are provided in a technical note.
Categories
You can add categories to your ChatSpace Community to organize groups
under a common topic.
When you create a primary category, you can select whether or not end users
may create groups within that cateogry, regardless of the setting for Allow
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