@Override
        public String getName() { return "ldap-group-name-attribute"; }
The attribute or attributes which identify user groups. One of these
attributes must be present within each Guacamole user group's record in
the LDAP directory for that group to be visible.
extensions/guacamole-auth-ldap/src/main/java/org/apache/guacamole/auth/ldap/conf/LDAPGuacamoleProperties.java