Any one can explain me about proxy

[achuthkmm]

I want to set my system's ip as us ip how it is possible? so that all USA targetted Adsense ads should appear in my pc.

[benevolent001]

Why you want to do this , it would be better to know your purpose for this

If you want to see what ads are shown in USA use Google Adsense preview tool if you want to see adsense ads

[jtara]

An easy way to do this, if you have a U.S.-based hosting account with SSH, is to tunnel using SSH. This doesn't require any additional software on the host machine - the functionality is built-in to the SSH server.

A number of commercial and free SSH clients have a local SOCKS proxy built-in that will tunnel traffic to a host. You'd configure your browser to use the SOCKS proxy.

BTW, tunneling is just one more good reason to use SSH rather than FTP to access your web hosting account. A more typical use of tunnels is to forward specific local ports to the host.

For example, I've set-up a tunnel for MySQL. This allows me to use locally-installed tools to securely access the MySQL databases on my host.