Please consult the documentation on the UIM apache probe for the other requirements:
Ensure that 'Extended Status' is turned on in the apache web server httpd.conf file. For example:
# ExtendedStatus controls whether Apache will generate "full" status
# information (ExtendedStatus On) or just basic information (ExtendedStatus
# Off) when the "server-status" handler is called. The default is Off.
Also, configure the /server-status to be allowed from the robot IP address.
For example in the '/etc/httpd/conf/httpd.conf' file:
# Allow server status reports generated by mod_status,
# with the URL of http://servername/server-status
# Change the ".example.com" to match your domain to enable.
Deny from all
Allow from <robot_ip_address>