Configure Secure DNS Servers in Ubuntu 11.04 4

ubuntu_nattySecure DNS Servers are mostly free DNS services from companies that help resolve your DNS (Domain Name System) queries through their network of redundant servers. If you don’t know what DNS is, it is a network service that allow your PC find names of websites online. Since computers only communicate in binary numbers, DNS servers translate those numbers into words like so you don’t have to type binary numbers  in order to go to Now, every PC has one or more DNS servers assigned to it once it is connected to the Internet. Some are secured while others are not. This article shows you a list of some secure DNS providers that you can use to protect yourself online.


Getting started:


To get started, click ‘Power –> System Settings’




Then select ‘Internet and Network –> Network Connections’




Next,  select the interface (Wired or Wireless) and click ‘Edit’




Finally, select ‘IPv4 Settings’ tab and choose ‘Automatic (DHCP) addresses only’ and begin typing the DNS servers IP addresses follow by commas. When done click ‘Save’




That’s all.


Here are a list of some secure DNS providers:


Name: DNS Servers:

Comodo Secure DNS —————————>,

Norton DNS Service —————————->,

OpenDNS Service    —————————–>,

Google Public DNS ——————————>,

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4 thoughts on “Configure Secure DNS Servers in Ubuntu 11.04

  • johnnydollar2

    Good advice. Easy to follow. I have OpenDNS set on mine. I like their list of categories to block like P2P and Porn. They also have BOT NET protection and monitoring that my regular ISP DNS servers most likely don’t.

  • SergioJP

    First of all I love the site, your posts are very well explained, would leave an additional tip. You can use a program written in python called namebench, this program makes a series of test points which your dns servers and point the best dns in their region, and shows you the results in charts and comparative tables. Can be downloaded at
    Thank you and success.

  • P Breen

    Will these changes not be lost after you finish your session? In the past, I’ve always seen how-to’s recommend you edit /etc/dhcp3/resolv.conf. That file no longer exists, now it’s /etc/dhcp/dhclient.conf. Just uncomment the line that begind with “prepend domain name servers” and make it read:

    prepend domain-name-servers,;

    or for OpenDNS:

    prepend domain-name-servers,;