A virtual host can use safeperl cgi scripts on their account. There is a difference in how these scripts are accessed
http://users.ox.ac.uk/. Safeperl CGI scripts associated with a virtual host, should be accessed
by the URL
http://users.ox.ac.uk/cgi-bin/safeperl/username/scriptname used for standard web accounts.
There are a small number of example safeperl scripts in the OUCS web frequently asked questions.