How to Block Access to All Websites Except a Few Sites in LinuxMint

LinuxMint is a popular operating system known for its user-friendly interface and flexibility. If you are using LinuxMint and want to restrict access to all websites except a few specific ones, you're in the right place. In this article, we will guide you through the process of blocking access to all websites except a selected few in LinuxMint. Follow the steps below to get started.

Step 1: Open the Terminal

To begin, open the Terminal by clicking on the "Menu" button in the bottom-left corner of your screen. In the search bar, type "Terminal" and click on the Terminal application that appears.

Step 2: Edit the Hosts File

In the Terminal, type the following command to open the hosts file in a text editor:

You will be prompted to enter your password. Type your password and press Enter.

Step 3: Add Website Exceptions

Once the hosts file is open in the text editor, you will see some lines of text. Each line represents a website or IP address. To block access to all websites, we need to add exceptions for the sites you want to allow.

To add an exception, scroll to the bottom of the file and enter the following line:

Replace "example.com" with the website you want to allow access to. You can add multiple exceptions by entering each website on a new line.

Step 4: Save and Exit

After adding the website exceptions, press Ctrl + O to save the file. Press Enter to confirm the filename. Then, press Ctrl + X to exit the text editor.

Step 5: Clear DNS Cache

To ensure the changes take effect, we need to clear the DNS cache. In the Terminal, type the following command:

Enter your password when prompted and press Enter. This will restart the NetworkManager service and clear the DNS cache.

Step 6: Test the Restrictions

Now that you have blocked access to all websites except the ones you specified, it's time to test the restrictions. Open your web browser and try to access a website that is not on your exception list. You should see an error message or be unable to access the site.

To check if the exceptions are working correctly, try accessing one of the allowed websites. If you can access the site without any issues, congratulations! You have successfully blocked access to all websites except the specified ones.

Conclusion

Blocking access to all websites except a few selected ones can be useful in various situations, such as controlling internet usage or ensuring focus during work or study. By following the steps outlined in this article, you can easily set up website restrictions in LinuxMint. Remember to add all the websites you want to allow access to in the hosts file. If you ever need to modify or remove the restrictions, you can simply edit the hosts file again. Enjoy a more controlled and focused browsing experience!

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