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domingo, 13 de outubro de 2013

How to Deny Access to Internet

Problem Environment: General Windows

Some users don't need internet access at all. Internet access is nowadays mandatory.
But in some cases it's only a source of distraction besides a an open gate for virus.
If you do not have a proxy server there is a simple way to deny internet access.

You can limit access to internet in some computers by setting the proxy server pointing to itself.
Every request will be redirected to the local computer. As the computer cannot answer to the request the user is presented with a simple network error.

You can do this at work or at home if you do not want a specific computer to have internet access.

It's as simple as that.

  1. Open your Control Panel and then open Internet Options.
  2. Open Connection Tab and click on Lan Settings.
  3. Enable proxy server and fill the address with 127.0.0.1.


To re-enable internet access just do the same steps and remove check on the use of proxy server.

This a simple way of denying internet access. 
Is it safe? Most users don't have the knowledge to override this settings but some may have. So this method is not 100% secure. If you are in a corporate environment you can complement this method by using group policy editor. In case you have users capable of overriding this trick you should consider implementing a proxy server.

Anyway it is still a nice and simple way to distance someone from unwanted activity's.