Creating an xHA pair - BlueCat Integrity - 9.4.0

You can create an xHA pair on Dedicated Management-enabled or disabled servers with IPv4 only, IPv6 only, or with both IPv4 and IPv6.

1. Select the Servers tab. Tabs remember the page you last worked on, so select the tab again to ensure you're on the Configuration information page.
2. From the configuration drop-down menu, select a configuration.
3. Under Servers, click New and select xHA.
   Note: DNS/DHCP Servers selected for an xHA pair must share the same server profile. For example, both servers must be DNS/DHCP Server 60 units.
4. Under Servers, specify the active and passive servers:
   1. Beside Active Server, click Add, select a server from the list and click Select.
   2. In the Password field, type the default server password. For more information on default login credential, refer to BlueCat default login credentials (you must be authenticated to view this topic).
   3. Repeat these steps for the Passive Server.
   4. To remove a server, click Remove.
   Note: Deployment is required after successful xHA creation to ensure the correct operation of all services.
5. Under xHA IP Address settings, complete the following:
   • If Dedicated Management is enabled:
     • Active Server New Management IP Address— enter a new IP address for the Management interface (eth2) for the active server. This is the new management interface address to be applied to the active server in the pair. The original IP address of the active server is assigned to the virtual management interface.
       Note: Address Manager detects whether you are adding DNS/DHCP Servers with Dedicated Management enabled or disabled.
   • Fields will depend on type(s) of addresses configured on eth0:
     • Active Server New IPv4 Address—enter a new IPv4 address for the Service interface (eth0) for the active server. This is the new IPv4 services interface address to be applied to the active server in the pair. The original IP address of the active server is assigned to the virtual Service interface.
     • Active Server New IPv6 Address—enter a new IPv6 address for the Service interface (eth0) for the active server. This is the new IPv6 services interface address to be applied to the active server in the pair. The original IP address of the active server is assigned to the virtual Service interface.
   • Ping Node
     • Require Ping IP Address—select to use a ping IP address for the xHA pair. When selected, the Ping Address field appears.
       • Ping Address—this field appears only when Require Ping Address is selected. Enter an IP address that's accessible to both servers in the xHA pair.

   Note: Address Manager will create an xHA cluster using the IP addresses of the Active server as the virtual IP addresses (VIP).
6. To enable backbone communication, follow these steps:
   1. Under xHA Communication Interface, select the Enable xHA Backbone Communication check box. If you previously configured the xHA backbone when adding the DNS/DHCP Server or creating xHA, the IP addresses and netmasks/prefixes for the Active and Passive nodes will be pre-populated with the existing values.
   2. If this is your first time configuring the xHA backbone connection, enter the IP address and netmask/prefix for the Active and Passive servers.
      Note: When configuring an IPv6 address for the xHA backbone, the prefix must be set between the accepted CIDR range of 64 to 127.
   Note: Complete this step only if Dedicated Management is enabled.
7. Under NAT, set the following NAT (Network Address Translation) options:
   • Enable NAT Support—select to enable NAT support. When selected, the following fields appear. This is the virtual IP address for the xHA pair behind NAT.
     • Active Server IPv4 Address (Inside)—enter the inside NAT IPv4 address for the active server.
     • Passive Server Address (Inside)—enter the inside NAT IPv4 address for the passive server.
     • Active Server New Address (Inside)—enter a new inside NAT IPv4 address for the active server. This is the new physical IP address for the Active server.

   Note: Complete this step only if Dedicated Management is disabled.
8. Under Change Control, add comments, if required.
9. Click Add. The xHA pair appears under the Servers tab of the Configuration Information page.
   Note: You can't disable NTP service for an DNS/DHCP Server that's part of an active xHA pair. For more information on NTP, refer to Network Time Protocol.