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  1. Home
  2. NetBackup™ Security and Encryption Guide
  3. Section II. Encryption of data-in-transit
  4. NetBackup CA and NetBackup certificates
  5. About host ID-based certificates
  6. About reissuing host ID-based certificates
  7. Changing the key pair for a host
NetBackup™ Security and Encryption Guide

Changing the key pair for a host

Consider changing a key pair only if a key is compromised or leaked. Changing a key pair results in both a new host ID-based certificate and a new host name-based certificate.

The following procedure describes changing a key pair for a host, and then getting a new certificate using the new key pair.

Do not perform the procedure for a primary server, only a non-primary server host.

To change a key pair for a host

  1. The NetBackup host administrator backs up the following directories:

    On Windows: Install_path\NetBackup\var\VxSS\at\systemprofile

    On UNIX: /usr/openv/var/vxss/at/root

  2. The NetBackup host administrator removes the directory from the host.
  3. Restart the NetBackup services on the host.
  4. The primary server administrator performs the following steps:

    • Log in to the NetBackup Web Management Service:

      bpnbat -login -logintype WEB

      See Web login requirements for nbcertcmd command options.

    • Revoke the host ID-based certificate:

      nbcertcmd -revokeCertificate -host host_name

    • Generate a reissue token for the NetBackup host where the key pair is to be changed.

      See Creating a reissue token.

    • Deploy a new host name-based certificate:

      bpnbaz - ProvisionCert host_name

  5. The NetBackup host administrator uses the reissue token to deploy a new host ID-based certificate with an updated key pair.

    Use the following command to enter the token directly:

    nbcertcmd -getCertificate -force -token

    Use the following command if the token is in a file:

    nbcertcmd -getCertificate -force -file /directory/token_file

  6. If the host has more than one primary server, repeat the process beginning at step 4 for each primary server.
  7. Restart the NetBackup services on the NetBackup host where the key was changed.

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