This tip is for Linux user configure DNS via terminal.
Open your terminal and login to root user administrator. Use your favorite text editor to edit the configuration file of the DNS system. In this example I'm using Leafpad text editor. Attention! All operations are executed as user system administrator (root).
1 - Open DNS configuration file system.
# leafpad /etc/resolv.conf
2 - Select your preferred DNS.
Select your preferred DNS. See the options available in the list or visit dns.norton.com for other solutions.
Example For Norton ConnectSafe for Home
Security + Pornography
Preferred DNS: nameserver 198.153.192.50
Alternate DNS: nameserver 198.153.194.50
Security (malware, phishing sites and scam sites)
Preferred DNS: nameserver 198.153.192.40
Alternate DNS: nameserver 198.153.194.40
Security + Pornography + Non-Family Friendly
Preferred DNS: nameserver 198.153.192.60
Alternate DNS: nameserver 198.153.194.60
A example: edit the /etc/resolv.conf file for : "Security + Pornography + Non-Family Friendly".
Write only two lines in file.
nameserver 198.153.192.60
nameserver 198.153.194.60
Save the file and close your text editor.
3 - Set Permissions
For the file not modified by system we have to change the write permissions. Run the command to change the write permissions of the file.
# chattr +i /etc/resolv.conf
Ok. Exit the terminal and restart your system.
To test the new settings please visit: setup.nortondns.com/