Ubuntu ban on visiting certain sites?

"Unable to save file" — because it must be done via sudo:
sudo gedit /etc/hosts

Google to begin with though, and. you did everything on the head set, these files govern access To the system.
the utility Willow

127.0.0.1 vkontakte.ru the hosts will be enough, the third parameter allows to use a single address for many hosts: 127.0.0.1 vkontakte.ru vk.com odnoklassniki.ru... In Windows it too should work technet.microsoft.com/en-us/library/bb727005.aspx#EDAA:
A single entry consists of an IP (IPv4 or IPv6) address and one or more host names. Although, IMHO, use NS to block access to it as a hole with an ax to dig :)
\r
record ALL: vkontacte.ru in hosts.deny will deny access to your computer from the server vkontakte.ru if they often you are bursting, then enter :)

> vkontakte.ru does not work, and www.vkontakte.ru Yes )
are different domains.