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Block Access to Unwanted Websites in Ubuntu 13.10/13.04/Linux Mint

Last updated: September 10, 2013

Want to block access to certain websites from your machine running Ubuntu or Linux Mint? It’s easy to do it by editing the host file.

With the hosts file, you can tell Ubuntu to redirect the specific websites to 127.0.0.1. So that the web browser returns below error:

block specific websites in ubuntu

To do so, edit the /etc/hosts with your favorite editor. Press Ctrl+Alt+T on your keyboard to open terminal. When it opens, run below command to edit the hosts via gedit:

sudo gedit /etc/hosts

Add below lines to the end of the file. Exclude the “http://” and change the domain names.

# block access to certain sites
127.0.0.1 www.websites1.com
127.0.0.1 www.websites2.com
127.0.0.1 websites3.com
127.0.0.1 morewebsites.com

Save the file and re-launch your web browser. Done.

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    7 responses to Block Access to Unwanted Websites in Ubuntu 13.10/13.04/Linux Mint

    1. magaraj January 10, 2014 at 6:52 am

      i tried but the hosts file is names as readonly. then what shoud i do

      • Panda January 10, 2014 at 7:10 am

        You need root privilege to edit the file. Use the command in the article, or press Alt+F2 -> type gksudo nautilus and hit enter to open Nautilus file browser as root so that you can edit it in your browser.

    2. dede March 19, 2014 at 3:33 am

      How to modify so I can block some sites with warning message?
      Can you help me? thanks before

    3. Amit August 20, 2014 at 2:26 pm

      facebook then also can be easily opened as when
      we type https://www.facebook.com in browser tab
      it will be opened even after saving it in host file!

    4. UbuntuUser123 September 8, 2014 at 6:32 am

      I tried this for Facebook, and it kind of works… If I open my web browser and type in “facebook.com”, the hosts file reroutes “facebook.com” to “127.0.0.1”. HOWEVER, if I open Google and search for “Facebook”, I can still access the Facebook website. How to you prevent access to the “facebook.com” domain completely?

      Obviously, this is not really about blocking Facebook; it’s about blocking pornographic websites. I’ve tried configuring OpenDNS (208.67.222.123 and 208.67.220.123) as the default DNS for my home router, but its effects are still spotty–even after flushing the DNS cache of my computer and browser.

      I’m wondering if there’s a good way to use UFW to accomplish this? I don’t care if I have to manually list the websites one-by-one or if I can find a way to block all pornography by default–I just want it out of reach.

    5. praidip June 23, 2015 at 4:53 am

      i want to block facebook