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NetBackup™ Web UI Administrator's Guide

Last Published: 2023-04-05

Product(s): NetBackup (10.2)

Approve or add mappings for a host that has multiple host names

A NetBackup host can have multiple host names. For example, both a private and a public name or a short name and a fully qualified domain name (FQDN). A NetBackup host may also share a name with other NetBackup host in the environment. NetBackup also discovers cluster names, including the host name and fully qualified domain name (FQDN) of the virtual name of the cluster.

The NetBackup client name of a host (or the primary name) is automatically mapped to its host ID during certificate deployment. For successful communication between NetBackup hosts, NetBackup also automatically maps all hosts to their other host names. However, that method is less secure. Instead, you can choose to disable this setting. Then choose to manually approve the individual host name mappings that NetBackup discovers.

See Disable automatic mapping of NetBackup host names.

See Example host mappings.

Approve the host mappings that NetBackup discovers

NetBackup automatically discovers many shared names or cluster names that are associated with the NetBackup hosts in your environment. Use the Mappings to approve tab to review and accept the relevant host names. When Automatically map host names to their NetBackup host ID is enabled, the Mappings to approve list shows only the mappings that conflict with other hosts.

Note:

You must map all available host names with the associated host ID. When you deploy a certificate to a host, the host name must map to the associated host ID. If it does not, NetBackup considers the host to be a different host. NetBackup then deploys a new certificate to the host and issues it a new host ID.

To approve the host names that NetBackup discovers

On the left, select Security > Host mappings.
Click the Mappings to approve tab.
Click the name of the host.
Review the mappings for the host and click Approve if you want to use the discovered mapping.
Click Reject if you do not want to associate the mapping with the host.
The rejected mappings do not appear in the list until NetBackup discovers them again.
Click Save.

Map other host names to a host

You can manually map the NetBackup host to its host names. This mapping ensures that NetBackup can successfully communicate with the host using the other name.

To map a host name to a host

On the left, select Security > Host mappings.
Select the host and click Manage mappings.
Click Add.
Enter the host name or IP address and click Save.
Click Close.

Map shared or cluster names to multiple NetBackup hosts

Add a shared or a cluster name mapping if multiple NetBackup hosts share a host name. For example, a cluster name.

Note the following before you create a shared or a cluster name mapping:

NetBackup automatically discovers many shared names or cluster names. Review the Mappings to approve tab.
If a mapping is shared between an insecure and a secure host, NetBackup assumes that the mapping name is secure. However, if at run-time the mapping resolves to an insecure host, the connection fails. For example, assume that you have a two-node cluster with a secure host (node 1) and an insecure host (node 2). In this case, the connection fails if node 2 is the active node.

To map shared or cluster names to multiple NetBackup hosts

On the left, select Security > Host mappings.
Click Add shared or cluster mappings.
Enter a Shared host name or cluster name that you want to map to two or more NetBackup hosts.
For example, enter a cluster name that is associated with NetBackup hosts in your environment.
On the right, click Add.
Select the NetBackup hosts that you want to add and click Add to list.
For example, if you entered a cluster name in step 3 select the nodes in the cluster here.
Click Save.