Best practice
=============

In the commands.cfg add this:

# 'check_curl_http' command definition
define command{
	command_name    check_curl_http
	command_line    $USER1$/check_curl_http.php -U $ARG1$ $ARG2$
	}


Then you can use it as follow in your service definitions. E.g. in the hosts.cfg:

define service{
    use                      generic-service         ; Name of service template to use - the default Nagios delivers
    host_name                myhost
    service_description      myWebsiteTest
    check_command            check_curl_http!"https://www.myurl.de/service"!-P ProxyIPaddress:ProxyPort -Pu mydomain\\\\myproxyuser:myproxypw -F -I -G "Thisismysearchstring"
    notifications_enabled    1
    }				

Little hint:
Since this test is related to your http proxy, you want to confiure the http proxy server as host and do 
something like: "-P $HOSTADDRESS$:8080" in the service definition