Sun Java System Web Server 6.1 SP11 Administrator's Guide

Effect

Specifies that the named group file is to be used for any group definitions referenced in a require group directive. Note that if the filename specified in an AuthGroupFile directive is the same as the filename in an AuthUserFile directive, the file is assumed to contain users and groups in the format:

username:DES-encrypted-password:comma-separated-list-of-groups