You can group network services together to apply a single rule to multiple network services. This group is called a Service Group. Table C-1 in Appendix C, "Services and State Engines," shows the predefined Service Groups in SunScreen EFS 3.0 and the services each includes. Not every service is included in a service group.
You can create additional service groups using any combination of the individual network services. A useful group to define might be an "internet services" group, consisting of public services, such as FTP, email, and WWW.