BELL Canada a consumer ISPs have started the practice of DNS hijacking on non-existent domain names, for the purpose of making money by displaying advertisements. This practice violates the RFC standard for DNS (NXDOMAIN) responses, and can potentially open users to cross-site scripting attacks. This is confirmed by several members of broadband web forum.
Following screen displays DNS hijacking

Fig.01: Bell Canada Employs DNS Redirection
Alternate DNS Server
You can use the following DNS server to avoid DNS hijacking:
4.2.2.1 4.2.2.2 4.2.2.3 4.2.2.4 4.2.2.5 4.2.2.6
How Do I Change DNS Settings Under MAC OS X Leopard?
- Click on the System Preferences.
- Select Network.
- Select Built In Ethernet and click Advanced.
- Select the DNS tab and add 4.2.2.1, 4.2.2.2, and 4.2.2.3 to the list of DNS servers.
- Click OK to save the changes.
How Do I Change DNS Settings Under Linux / UNIX / FreeBSD?
- Open the terminal.
- Type the following command:
- Update name server as follows:
- Save and close the file.
sudo vi /etc/resolv.conf
nameserver 4.2.2.1 nameserver 4.2.2.2 nameserver 4.2.2.3
How Do I Change DNS Settings Under MS-Windows XP / Vista / 7?
- Click the Stat button.
- Select Control Panel.
- Select View network status.
- Select Properties button.
- Select TCP/IPv6 > Properties.
- In the Preferred DNS server type 4.2.2.1 and 4.2.2.2
- Save and close the changes.
And just who is 4.2.2.1 (Level 3 Parent, LLC) and why should I trust them anymore than 1.1.1.1 (Cloudfare DNS)?
Is it just an example?