Check if you're behind a Proxy Server

By using a proxy server, your IP address will be hidden from websites and other web services that you use. Any web resource you access can gather personal information about you through your IP address. Anonymous proxy servers hide your IP address thereby saving you from vulnerabilities concerned with it.

» You are behind proxy 54.83.154.242
» Your real IP address is 18.206.13.203, 18.206.13.203

Here are the variables sent by the server

Variables	Values
REMOTE_ADDR	54.83.154.242
HTTP_X_FORWARDED_FOR	18.206.13.203, 18.206.13.203
HTTP_X_REAL_IP	18.206.13.203

Setting up Web Proxies in Mozilla Firefox

Go to Preferences
(in Windows, it is Tools | Options | Preferences and Linux, it is Edit | Preferences).
Click on General tab on the left and the button labelled Connection Settings.
Select Manual Proxy Connection and enter the HTTP proxy server address and port number.
Check if you are behind the proxy by visiting this.

Setting up Web Proxies in Internet Explorer

Click on Tools | Internet Options | Connection.
Click on the button labelled LAN Settings.
Under Proxy Server, check the box corresponding to "Use a proxy server for your LAN".
Enter the address and port from the list below.
Click on OK and then OK again and you should be back to your normal Internet Explorer browser window.