This script prompts you for proxy server settings, should you be unable to go directly onto the Internet. Use it without any arguments, it will prompt you for proxy ip-address or hostname, proxyport (usually 8080) and optionally username and password (invisible). If no username/password is required, just leave it blank and hit enter.
This script can also be called upon startup in the bootmenu.
If you want your proxyserver to always be included, I recommend you set up your LAN to be "TRK-aware", explained later in this documentation.
Setproxy sets the proxy settings for these applications:
-general http_proxy environment variable
Also available for reading is the online manpage: