Hi everyone again: I think I was wrong in my question, in case it helps anyone having the same troubles, it s better to use the check_http command to test proxies also: From the command line you can check if it works with this: <div>./check_http -H [proxy_server_IP_address] -p [proxy_server_port] -u <a title="blocked::http://www.google.es/" href="http://www.google.es/">http://www.google.es</a> </div> <div>And then you can use simple commands like </div> <div>define command { command_name check_bluecoat command_line $USER1$/check_http -H $HOSTADDRESS$ -p 8080 -u <a title="blocked::http://www.google.es/" href="http://www.google.es/">http://www.google.es</a> }</div> (my proxy listens on port 8080) In recent emails (from where I got this idea, thank you!), it looks like the https connections can't be tested like this... Kind regards, Jorge <div>On 3/3/10, Jorge Gil <<a href="mailto:georgyboy@gmail.com">georgyboy@gmail.com</a>> wrote:<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi everyone! First of all, thank you for your help to everyone, since I am learning a lot from the "cases" that get solved in this mailing list. I am quite new to Nagios, but it s already watching my network and showing it greenly beautiful.. the thing that makes me write you is that I downloaded <a href="http://check_squid.pl" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">check_squid.pl</a> and it looks fine from the command line. I read from some of you that this is not the way to test it, but the first <a href="http://check_squid.pl" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">check_squid.pl</a> that I got didnt even work from the command line. Anyway, I tried to call the command like that, like sudo, like the perl interpreter, googled quite a bit, and still nagios gets "null" as output (very differently from the OK command line) Is any of you using <a href="http://check_squid.pl" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">check_squid.pl</a>? How did you make it work from the nagios.cfg, please? Thank you so much! Warm regards, Jorge </blockquote></div>