TCP wrappers provide application level host-based access control to inetd and xinetd servers. By default this policy is described in /etc/hosts.allow and /etc/hosts.deny. The VDT does not include TCP wrappers, we do run servers via inetd/xinetd so if you are running TCP wrappers, you'll need to do some extra configuration, which is described below.
The VDT does not run the pre-web services Gatekeeper directly but instead calls it through a wrapper script which sets up the environment. To control access to the Gatekeeper use the program name vdt-run-globus-gatekeeper.sh.
The VDT does not run the GridFTP server directly but instead calls it through a wrapper script which sets up the environment. To control access to the GridFTP server use the program name vdt-run-gsiftp.sh.