In order to block some certain sites, I use the following codes in my hosts file:

# localhost name resolution is handled within DNS itself.
#       localhost
#   ::1             localhost http://www.hamdardi.net/  

But that works only when I'm not connected to a VPN.
How can I block a certain website using hosts file even if I'm connected to a VPN?
please avoid suggestions like leechblock for firefox, stayfocused for google chrome. I want a solution that works for all browsers installed on my computer (IE, firefox, google chrome) that doesn't let me to access and edit the blocking settings while the sites are blocked.
I have tried a lot of ways like localfilter, BinarySwitch Eclipse, etc. But I've always found a way to sneak out.
This time I wanna block the sites using hosts file and then set a random password on the file for the administrator of the computer (not the SYSTEM) and give this password to someone else


Hosts file should always work - VPN or not. Drop the http protocol. These entries should be sufficient: www.hamdardi.net hamdardi.net

Edit: Useful debugging guide: https://serverfault.com/a/452269

  • Marek Rost is right. Your mistake is that you have written "http://www.hamdardi.net/". HOSTS file only accepts fully qualified domain names, not URLs. – user477799 Jul 30 '16 at 14:35
  • @FleetCommand but the solution didn't work. I've shared my hosts file content here for you – Sepideh Abadpour Jul 30 '16 at 15:02
  • @sepideh as FleetCommander said only FQDNs = fully qualified domain names can be used. You have several errors in the file. As a result your entries are completly ignored. No ports or mapping ip address to ip address is allowed. Same with wildcards, so this line won't work as well: CRL.VERISIGN.NET.* – Marek Rost Jul 30 '16 at 15:04
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    @sepideh hopefully this will help you: nopaste.me/view/49d8ffa7 – Marek Rost Jul 30 '16 at 15:22
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    From what i found: it varies case to case - sometimes, when there is error in syntax, it is ignored completly. Another time rules are applied from start of file until the first mistake. This is why i posted that debuggin link into the answer - so you can test it out and see if changes in the file were applied. – Marek Rost Jul 30 '16 at 16:17

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