How to Use Group Policy Editor to Limit Websites
Group Policy Editor is a system tool that defines rules and configurations that control the working environments of all the user accounts registered to a computer. You can use this tool to block certain websites on your computer, thus making it impossible for users to browse sites that are either inappropriate or distracting in a work environment. Note that you will need administrative rights to access and make changes to Group Policy Editor.
Instructions
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Log into your computer using an administrative account.
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Find the Internet Protocol (IP) address of the website you wish to block. Click the Start menu and type "cmd" (without the quotes). Click "cmd.exe" to launch the Command Prompt. Type (without the quotes) "ping <domainname>" and press the "Enter" key; replace "<domainname>" with the domain name of the website you wish to block (e.g., "ping website.com"). The Command Prompt will return a list of IP addresses. Write these numeric addresses on a piece of paper.
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Type "exit" (without the quotes) to close the Command Prompt.
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Click the Start menu and then type "gpedit.msc" (without the quotes) in the search box. Press the "Enter" key to launch Group Policy Editor.
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Double-click to expand "Computer Configuration" in the left pane of the main window. Expand "Windows Settings." Expand "Security Settings." Expand "IP Security Policies."
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Right-click and choose "Manage IP Filter Lists..."
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Click "Add." Type a name for the policy that you will use to limit websites ("LimitWebsitePolicy," for example).
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Click "Add" to launch a wizard for "IP Filter."
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Click "Next" when the wizard pops up. Choose "My IP address" from the drop-down menu in the "IP Traffic Source" window. Click "Next."
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Click the "Destination Address" drop-down menu and choose "Specific IP address." Click "Next."
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Enter all the IP addresses that you wrote down earlier, one by one.
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Click "Next" and then click "OK" to set the policy. Close Group Policy Editor to end the task.
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