How to ping a server on the Internet and if I'm sitting behind a proxy?

I am using proxy to connect to internet in my office, how I can ping a server, if I have the IP address that in the Internet. Is there any need for special software to ping / telnet to that server in my case. Apart from that if I use the DSL connection that what may be the process server to ping the Internet??

You can ping using the following link.

How To Use A Proxy Server

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