The Company is the place where all the computers connected to one another, so that what is done by a clien will look at a computer admin. if you want to control your subordinates at work in this way is powerful enough to do so that all can be controlled.

               #

               # This is a sample HOSTS file used by Microsoft TCP / IP for Windows.           

               #

               # This file contains the mappings of IP addresses to host names. each           

               # Entry should be kept on an individual line. The IP address should          

               # Be placed in the first column Followed by the corresponding host name.           

               # The IP address and the host name should be separated by at least one          

               # Space.

               #

               # Additionally, comments (Such as these) may be inserted on individual

               Following the # lines or machine name denoted by a '#' symbol.          

               #

               # For example:           

               #          

               # # Source server 102.54.94.97 rhino.acme.com           

               # 38.25.63.10 x.acme.com # x client host

• After that you add the following code (in blue) right under the code above.

               0.0.0.0 www.facebook.com           

               0.0.0.0 en-id.facebook.com           

               0.0.0.0 www.facebook.com / home.php          

               0.0.0.0 69.63.176.140

• The last step save the file (CTRL S), try to open facebook from the browser and if it still can be opened, restart your computer.

Actually, this trick can also be used to block other websites, such as twitter or whatever you want to block sites on a computer, just added it to the end of the file.