Profile Overrides - DNS

About this task

DNS (Domain Name System) is a hierarchical naming system for resources connected to the Internet or a private network. Primarily, DNS resources translate domain names into IP addresses. If one DNS server doesn't know how to translate a particular domain name, it asks another one until the correct IP address is returned. DNS enables access to resources using human friendly notations. DNS converts human friendly domain names into notations used by different networking equipment for locating resources.

As a resource is accessed (using human-friendly hostnames), it's possible to access the resource even if the underlying machine friendly notation name changes. Without DNS, in the simplest terms, you would need to remember a series of numbers (123.123.123.123) instead of an easy to remember domain name (for example, www.domainname.com).

To override an access point's DNS configuration:

Procedure

  1. Go to Configuration → Devices → Device Overrides.

    The Device Overrides screen displays. This screen lists devices within the managed network. Select a device.

  2. Expand Profile Overrides → Network and select DNS.

    The selected device's DNS configuration screen displays.

    Click to expand in new window
    Profile Overrides - Network DNS Configuration Screen
    GUID-F0AD3677-4F37-4066-94F8-38B38DA4E904-low.png
  3. In the Domain Name System (DNS) field set the following configurations:

    Domain Name

    Provide the default Domain Name used to resolve DNS names. The name cannot exceed 64 characters.

    Enable Domain Lookup

    Select the check box to enable DNS. When enabled, human friendly domain names are converted into numerical IP destination addresses. The radio button is selected by default.

    DNS Server Forwarding

    Select this option to enable the forwarding DNS queries to external DNS servers if a DNS query cannot be processed by local DNS resources. This feature is disabled by default.
  4. In the DNS Servers field, provide the IP addresses of up to three Name Server resources available to the access point.
  5. In the DNS Servers IPv6 field, set the following configurations:

    IPv6 DNS Name Server

    Provide the default domain name used to resolve IPv6 DNS names. When an IPv6 host is configured with the address of a DNS server, the host sends DNS name queries to the server for resolution. A maximum of three entries are permitted.

    IPv6 DNS Server Forward

    Select the check box to enable IPv6 DNS domain names to be converted into numerical IP destination addresses. The setting is disabled by default.
  6. Click OK to save the DNS configuration changes.

    Click Reset to revert to the last saved configuration.

9036315-02 REV AA