Zone Management

The DNS Zone object is an eDirectory container object that comprises Resource Record Set (RRSet) objects and resource records. A DNS zone can be a primary zone, a secondary zone, a primary IN-ADDR.ARPA (reverse) zone, or a secondary IN-ADDR.ARPA zone. See the following sections:

• Creating a Primary Zone
• Creating a Secondary Zone
• Creating a Primary IN-ADDR.ARPA Zone
• Creating a Secondary IN-ADDR.ARPA Zone:
• Viewing or Modifying a Zone Object
• Deleting a Zone Object

Creating a Zone Object

Creating a Primary Zone

1. Click DNS Management > Zone Management to open the Zone Management window in the main panel.

2. Select Create Zone from the drop-down menu and click OK to open the Create DNS Zone window.

3. Choose Create New Zone.

4. Enter the eDirectory context for the zone or browse to select it.

5. Enter a name for the zone object.

6. Under Zone Type, choose Primary (default).

7. Select a DNS server from the Assign Authoritative DNS Server drop-down menu.

   or

   Enter a unique host name in the Name Server Host Name box and, optionally, select a domain from the Domain drop-down menu.

8. Click Create.

   A message indicates that the new primary zone has been created.

Creating a Secondary Zone

1. Click DNS Management > Zone Management to open the Zone Management window in the main panel.

2. Select Create Zone from the drop-down menu and click OK to open the Create DNS Zone window.

3. Choose Create New Zone.

4. Enter the eDirectory context for the zone or browse to select it.

5. Enter a name for the zone object.

6. Under Zone Type, choose Secondary.

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

8. Select a DNS server from the Assign Authoritative DNS Server drop-down menu. This is an optional parameter.

   or

   Enter a unique host name in the Name Server Host Name box and, optionally, select a domain from the Domain drop-down menu.

9. Click Create.

   A message indicates that the new secondary zone has been created.

Creating an IN-ADDR.ARPA Object

Creating a Primary IN-ADDR.ARPA Zone

1. Click DNS Management > Zone Management to open the Zone Management window in the main panel.

2. Select Create Zone from the drop-down menu and click OK to open the Create DNS Zone window.

3. Choose Create IN-ADDR.ARPA.

4. Enter the eDirectory context for the zone or browse to select it.

5. Enter the IP address of the zone in the Zone Domain Name field.

   The IN-ADDR.ARPA zone name is displayed.

6. Under Zone Type, choose Primary (default).

7. Select a DNS server from the Assign Authoritative DNS Server drop-down menu.

   or

   Enter a unique host name in the Name Server Host Name box and, optionally, enter a domain name or select it from the Domain drop-down menu.

8. Click Create.

   A message indicates that the new Primary IN-ADDR.ARPA Zone object has been created.

Creating a Secondary IN-ADDR.ARPA Zone:

1. Click DNS Management > Zone Management to open the Zone Management window in the main panel.

2. Select Create Zone from the drop-down menu > click OK to open the Create DNS Zone window.

3. Choose Create IN-ADDR.ARPA.

4. Enter the eDirectory context for the zone or browse to select it.

5. Enter the IP address of the zone in the Zone Domain Name field. The IN-ADDR.ARPA zone name is displayed.

6. Under Zone Type, choose Secondary.

7. Select a DNS server from the Assign Authoritative DNS Server drop-down menu.

   or

   Enter a unique host name in the Name Server Host Name box and optionally, enter a domain name or select it from the Domain drop-down menu.

8. Type the IP Address of the DNS server that will provide zone-out transfers for this secondary zone.

9. Click Create.

   A message indicates that the new Secondary IN-ADDR.ARPA Zone object has been created.

Viewing or Modifying a Zone Object

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

1. Click DNS Management > Zone Management to open the Zone Management window in the main panel.

2. Select View/Modify Zone from the drop-down menu and click OK to open the View/Modify DNS Zone window.

3. Select the DNS Zone object from the drop-down menu.

4. Click OK.

You can now modify the following DNS Zone configuration parameters:

• Zone Type: Specifies whether the zone will be a Primary or a Secondary zone.
• Zone Master IP Address: To change a Primary zone to a Secondary zone, click the Secondary zone box and provide the IP address of the Primary DNS Server in the Zone Master IP Address field.
• Available DNS Servers: Specify the server to which the zone is to be assigned and click Add. The server will then be displayed in the Authoritative DNS Servers field. Authoritative DNS Servers: To delete a DNS server assignment to a zone, select the server to be removed from the field, then click Remove.
• Add All: Click this to add available DNS servers to a zone.
• Remove All: Click this to remove available DNS servers from a zone.
• Designated DNS Server: Designates a server for the zone if more than one DNS server is assigned to a zone. This server will be responsible for getting DHCP updates for the zone, if the zone is a Primary zone.
• Comments: Use this field to provide information about the zone. This is an optional parameter.
• Modify Zone Out Filter: Specifies a list of IP addresses or networks authorized to do zone out transfers from this zone. Use the Add and Delete buttons to add or remove particular IP addresses and networks.
• Zone Master: Specifies the name of the DNS zone.
• E-mail Address: Specifies the e-mail address for the zone.
• Serial Number: Use this field to set a date and revision number for the Start of Authority.
• Interval values: Choose from the following values:

  - Refresh: Specifies the time in which the secondary name server downloads a copy of the zone data to the primary name server. The default is 180 minutes.

  - Retry: Specifies the time that a secondary name server waits after a failed download before it tries to download the zone database again. The default is 60 minutes.

  - Expire: Specifies the time that a secondary name server continues to try to download a zone database. The default is 168 hours.

  - Minimal TTL: Specifies the minimum TTL for a resource record. This parameter determines how long a DNS server retains an address mapping in cache. The default is 24 hours.

Deleting a Zone Object

1. Click DNS Management > Zone Management to open the Zone Management window in the main panel.

2. Select Delete Zone from the drop-down menu and click OK to open the Delete Zone window.

   • To remove all the Zone objects in the list, check the top-level check box and click Delete.
   • To remove one or more Zone objects, check the check box next to it and click Delete.