Apache Reference: http_core, Group
Effective Group ID for Server Process
Syntax: Group A
Example: Group nobody
Since: Apache 1.0
This directive sets the (UNIX) group under which the server
process will run and answer requests. To use this
directive, the stand-alone server must be run initially as
``root''. The argument gid is either a group name or ``#''
followed by a numerical group ID. The use of this directive in
<VirtualHost> requires a properly configured suEXEC wrapper.
When used inside a <VirtualHost> in this manner, the directive
affects only the group runs as CGI processes. All other types
of requests are processed as the group specified in the
main server.