For DNS veterans, switching to Internet Guide is easy. Simply replace your current recursive resolvers with: –

We also have tutorials below, that will help you to begin using Internet Guide for a faster, safer browsing experience.

The easiest way to use Internet Guide with Windows is to install the latest Dyn Updater for Windows. During installation, you can enable Internet Guide in your update client, which will make the necessary changes for you.

To manually change your DNS to Internet Guide:

  1. Open the Control Panel from your Start menu.
  2. Click Network Connections and choose your current connection.
  3. On the General tab of the Connection Status screen, click Properties.
  4. On the General tab of Connection Properties, scroll down and select Internet Protocol (TCP/IP), then click Properties.
  5. On the General tab of Internet Protocol (TCP/IP) Properties, select Use the following DNS server addresses, then enter the two Internet Guide IP addresses and
  6. Click OK until each window is closed. You are now using Internet Guide.

To disable: Follow the above instructions. On step five, select Obtain DNS server address automatically on the last screen (or replace our Internet Guide addresses with your recursive resolver IPs). Please note: If you enable Internet Guide through the Dyn Updater, you must also disable Internet Guide through the client.

  1. Open System Preferences.
  2. Click Network.
  3. Choose your current network adapter, and click Advanced.
  4. On the DNS tab, enter the two Internet Guide addresses and

To disable: Follow the above instructions. On step four, remove the Internet Guide addresses (or replace them with your recursive resolver IPs).

Static Interface

In most Unix operating systems, your DNS settings are configured in /etc/resolv.conf. To use Internet Guide:

  1. Open /etc/resolv.conf in any text editor.
  2. Comment out any nameserver or search lines with #.
  3. Add the following two lines:
  4. Save the file and exit the editor.

To disable: Simply remove our Internet Guide nameserver lines from resolv.conf and uncomment the previous settings.

DHCP Interface (dhclient)

Many popular distributions use dhclient if your interface is set to DHCP. To use Internet Guide with dhclient:

  1. Open dhclient.conf, typically located at /etc/dhcp3/dhclient.conf, in any text editor.
  2. Uncomment or add the following line:
    prepend domain-name-servers,;
  3. Restart your network interface. If you are using NetworkManager, you can do this by clicking on the icon and selecting your interface to activate the changes.

To disable: Comment out or remove the line above.

In most cases, DHCP-enabled devices in your network will retrieve DNS settings automatically from your router; by configuring your router to use Internet Guide, these devices will use Internet Guide as well.

The exact method of configuring static DNS settings varies widely from router to router, but usually appears under the DHCP configuration section. For example, under Basic Setup – Network Address Server Settings (DHCP) in the Linksys WRT54G, there are three entries for Static DNS. Entering our two Internet Guide IP addresses, and, will cause the router and all DHCP devices in your network to query Internet Guide for their DNS needs.

By your use and continued use of and/or the Dyn Updater Client and/or Internet GuideSM service and/or the DNS servers located at IP Address or IP Address, you agree to the Terms of Use for and Oracle’s Privacy Policy for Internet Performance Tools.