By using this tweak you are able to
restrict access to the Internet when using Internet Explorer and
other Microsoft compatible products such as Office.
To do this, follow the next steps:
- Open the Registry Editor click on the Start button on
your taskbar, then click on Run and type "regedit"
and click on OK to start the regedit utility.
Settings (see picture 1).
- Change the value of "ProxyEnable" and set it to
"1". Change the value of "ProxyServer" and set it to
an IP address and port that is invalid on your network such as
"10.0.0.1:5555" (i.e. "IP:Port").
By changing these settings Internet access will be disabled for any
applications that rely of the Microsoft proxy server information
such as Internet Explorer, Microsoft Office, Opera browser.
To stop users from modifying the proxy settings add these
restrictions to disable changes to the Internet configuration.
Explorer\Control Panel (see picture 1).
- Create two DWORD values named "Connection Settings" and
"Connwiz Admin Lock" and set them both to "1".
- To remove the restriction, set the proxy settings back to their
original values and delete the policy values.
Note: The change will take effect immediately for any new
browser windows, existing Internet Explorer sessions will not be
affected until the browser is closed and reopened.