Detailed DNS Configuration

This section provides detailed information about configuring DNS objects using the DNS/DHCP Management Console. All the procedures in this section assume that you have already launched the utility and that you have selected the DNS Service tab. The procedures in this section are:


Creating a DNS Name Server Object

The DNS Name Server object is a stand-alone object within the NDS tree, and it can be located in any context you choose.

To create a new DNS Name Server object, complete the following steps:

  1. Click Create on the tool bar.

    The Create New DNS Object dialog box is displayed, enabling you to create a DNS Server object or a Zone object.

  2. Select DNS Server and click OK.

    The Create DNS Server dialog box is displayed, prompting you for the name of the server object.

  3. Enter the desired server's name or click the browse button to select the server.

  4. Enter the server's Domain name, then click Create.

    The DNS Server object is created and displayed in the bottom pane of the DNS/DHCP Management Console.


Modifying a DNS Name Server Object

After you have created a DNS Name Server object, you can modify it and provide more detailed configuration information.

To modify an existing DNS Name Server object, click the object's icon in the lower pane of the DNS Service window to display detailed information in the right pane. A DNS Name Server object's detailed information window displays four tab pages:

On the Zones tab page, the Zone List contains a list of all zones and the role each zone serves for the selected DNS Name Server object. To change any of the zone information, you must modify the specific Zone object. Only the zone list is stored in the DNS Name Server object.

The DNS Server IP Address field contains the addresses of any DNS servers assigned to this zone. This field is read-only and is received from the DNS Server.

You can enter up to 256 characters of information about the name server in the Comments field.

The Forwarding List tab page displays a list of all forwarding IP addresses. Click Add to add an address to the list and display the Add Forward IP Address dialog box, which requests an IP address to add to the list. To delete an address from the list, select an IP address and click Delete.

The No-Forward List tab page displays a list of all domain names to which you do not want to send queries. To add a domain name to the No-Forward List, click Add and enter the domain name into the No Forward Name field, then click OK. To delete a domain name from the list, select the domain name from the list and click Delete.


Creating a Zone Object

The DNS Zone object is an NDS container object that comprises Resource Record Set (RRSet) objects and resource records. This section provides information about how to create a Secondary DNS Zone object and an IN-ADDR.ARPA Zone object. For information about how to create a Primary DNS Zone object, refer to Creating a Primary DNS Zone Object.


Creating a Secondary DNS Zone Object

After you create a DNS Server object, you can use the DNS/DHCP Management Console to create and set up Secondary DNS Zone object. To create a Secondary DNS Zone object, you must provide the IP address of the DNS server that will perform zone in transfers for the secondary zone.

  1. Click the DNS Service tab of the DNS/DHCP Management Console.

  2. Click Create on the tool bar, select Zone, then click OK

  3. Use the browse button to select the NDS context for the zone.

  4. Enter a name for the Zone object in the Zone Domain Name field.

  5. Under Zone Type, select Secondary.

    When you select a secondary type zone, the Assign Authoritative DNS Server field and the Name Server Host Name field entries are optional.

  6. Enter the IP address of the DNS server that will provide zone out transfers for this secondary zone.

    You can optionally select to assign an authoritative DNS server.

  7. Click Create.

    A message is displayed indicating that the new zone has been created, and you are reminded to create the Address record for the host server domain name and corresponding Pointer record in the IN-ADDR.ARPA zone (if you have not already done so).


Creating an IN-ADDR.ARPA Zone Object

After you create a DNS Server object, you can use the DNS/DHCP Management Console to create and set up an IN-ADDR.ARPA Zone object.

To create an IN-ADDR.ARPA Zone object, complete the following steps:

  1. Click the DNS Service tab of the DNS/DHCP Management Console.

  2. Click Create on the tool bar, select Zone, then click OK

    The Create Zone dialog box is displayed. The default setting is to create a new, primary zone.

  3. Select Create IN-ADDR.ARPA.

  4. Use the browse button to select the NDS context for the zone.

  5. Enter an IP address in the Zone Domain Name field.

    After you enter the IP address, it is reversed and prepended to .IN-ADDR.ARPA and reflected in the box below the Zone Domain Name field.

  6. Under Zone Type, select Primary or Secondary.

    If you select Secondary, you must enter the IP address of the DNS Name Server that will provide zone out transfers to this zone.

  7. In the Assign Authoritative DNS Server field, select a DNS server.

    Once you have selected an authoritative DNS server, the Name Server Host Name field is filled with name of the authoritative DNS server.

  8. Click Create, then click Save.


Creating an IP6.INT Zone Object

After you create a DNS Server object, you can use the DNS/DHCP Management Console to create and set up an IP6.INT Zone object. Only one IP6.INT DNS Zone object can exist in an NDS tree.

To create an IP6.INT Zone object, complete the following steps:

  1. Click the DNS Service tab of the DNS/DHCP Management Console.

  2. Click Create on the tool bar, select Zone, then click OK

    The Create Zone dialog box is displayed. The default setting is to create a new, primary zone.

  3. Select Create IP6.INT.

  4. Use the browse button to select the NDS context for the zone.

  5. Under Zone Type, select Primary or Secondary.

    If you select Secondary, you must enter the IP address of the DNS Name Server that will provide zone out transfers to this zone.

  6. For a Primary zone, click in the Assign Authoritative DNS Server field to select a DNS server to service the zone.

  7. Click Create, then click Save.


Modifying a Zone Object

After you have created a Zone object, you can modify it and provide more detailed configuration information.

To modify a new Zone object's attributes, complete the following steps:

  1. Select the Zone object you want to modify.

  2. To change a Primary zone to a Secondary zone, click the Secondary check box and provide the Primary DNS Server's IP address in the Zone Master IP Address field.

  3. To designate a DNS name server to be an Authoritative DNS Server, select one or more from the Available DNS Servers list and click Add.

    The selected DNS name server's name is moved from the list of Available DNS Servers to the list of Authoritative DNS Servers. If only one server is available, that server automatically becomes the designated server.

  4. To select a server from the list of Authoritative DNS Servers to become the designated server, click the Dynamic DNS Server field.

  5. Type any relevant comments about the zone directly into the Comments field.

To view or modify a new Zone object's Start of Authority information, click the SOA Information tab. The following information is displayed:


Creating Resource Records

A resource record is a piece of information about a domain name. Each resource record contains information about a particular piece of data within the domain.

To create a new resource record, complete the following steps:

  1. Select the Zone object under which you want to create a new resource record.

    The Create New DNS Object window is displayed.

  2. Select Resource Record and click OK.

    The Create Resource Record dialog box is displayed, prompting you for the domain name of the resource record you want to create. You can select the A record (the default) to create an Address record or the CNAME record to create a canonical name, or you can check the Others box to create a resource record from the displayed list of supported resource record types. The information required for each resource record depends on the resource record type.

  3. Enter the domain name you want to associate with this resource record.

    The name you select is prepended to the domain name of the zone under which the resource record will be created.

  4. Enter any additional information required for the resource record type, then click Create.

After you have created a resource record, it's type cannot be modified. If changes are required, you must delete the resource record and create a new one.

NOTE:  Start of Authority (SOA) is defined as part of a Zone object's attributes, and a Pointer (PTR) record is created automatically when any new A resource record or IPv6 (AAAA) resource record is created if the IN-ADDR.ARPA zone exists.

If you are creating a new resource record within an existing RRSet object, the Domain Name field is displayed in read-only format in the Create Resource Record dialog box. The domain name was defined for the RRSet object and must be the same for subordinate resource record objects.


Modifying Resource Records

When you select an existing resource record in the left pane of the DNS Service window, the detailed information for the object is displayed in the right pane.



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