The Internet is one of the greatest inventions and it has come with lots of advantages. But it also comes with many disadvantages, particularly for kids. Now protecting your kids or child from Porn, unwanted contents, hate groups, cyber bully…
The hosts file is an OS based plain text file that maps hostnames to IP addresses.It contains lines of IP address in the first field and host names in the second field. Each field is separated by tab space. you can also add a comment line by adding a hash (#) in the front.
Edit the hosts file on Ubuntu:
Open your Terminal app searching “terminal” in the unity dash or by press Ctrl+Alt+T key combination. If you want to take a backup of your hosts file , typing the following command in your terminal app.