NetBackup™ Security and Encryption Guide
- Read this first for secure communications in NetBackup
- Communication failure scenarios
- Increasing NetBackup security
- Security deployment models
- Auditing NetBackup operations
- About audit events
- Section I. Identity and access management
- About identity and access management
- AD and LDAP domains
- Access keys
- API keys
- Auth.conf file
- Role-based access control
- Smart card or digital certificate
- Single Sign-On (SSO)
- Enhanced Auditing
- NetBackup Access Control Security (NBAC)
- Configuring NetBackup Access Control (NBAC)
- Configuring Access Control host properties for the master and media server
- Access Control host properties dialog for the client
- Troubleshooting Access Management
- Windows verification points
- UNIX verification points
- Verification points in a mixed environment with a UNIX master server
- Verification points in a mixed environment with a Windows master server
- About determining who can access NetBackup
- Viewing specific user permissions for NetBackup user groups
- Section II. Encryption of data-in-transit
- NetBackup CA and NetBackup certificates
- About the Security Management utilities
- About host management
- Adding shared or cluster mappings
- Allowing or disallowing automatic certificate reissue
- About global security settings
- About host name-based certificates
- About host ID-based certificates
- Using the Certificate Management utility to issue and deploy host ID-based certificates
- About NetBackup certificate deployment security levels
- Setting up trust with the master server (Certificate Authority)
- About reissuing host ID-based certificates
- About Token Management for host ID-based certificates
- About the host ID-based certificate revocation list
- About revoking host ID-based certificates
- Host ID-based certificate deployment in a clustered setup
- About deployment of a host ID-based certificate on a clustered NetBackup host
- Migrating NetBackup CA
- Configuring data-in-transit encryption (DTE)
- Configure the DTE mode on a client
- Modify the DTE mode on a backup image
- How DTE configuration settings work in various NetBackup operations
- External CA and external certificates
- About external CA support in NetBackup
- Configuration options for external CA-signed certificates
- ECA_CERT_PATH for NetBackup servers and clients
- About certificate revocation lists for external CA
- About certificate enrollment
- Configuring an external certificate for the NetBackup web server
- About external certificate configuration for a clustered master server
- Regenerating keys and certificates
- NetBackup CA and NetBackup certificates
- Section III. Encryption of data at rest
- Data at rest encryption security
- About NetBackup client encryption
- Configuring standard encryption on clients
- About configuring standard encryption from the server
- Configuring legacy encryption on clients
- About configuring legacy encryption from the client
- About configuring legacy encryption from the server
- Additional legacy key file security for UNIX clients
- NetBackup key management service
- About FIPS enabled KMS
- Installing KMS
- Configuring KMS
- About key groups and key records
- Overview of key record states
- Configuring NetBackup to work with KMS
- About using KMS for encryption
- KMS database constituents
- Command line interface (CLI) commands
- About exporting and importing keys from the KMS database
- Troubleshooting KMS
- External key management service
- Configuring KMS credentials
- Configuring KMS
- Creating keys in an external KMS
- Working with multiple KMS servers
- Data at rest encryption security
- FIPS compliance in NetBackup
- NetBackup web services account
- Running NetBackup services with non-privileged user (service user) account
- Immutability and indelibility of data in NetBackup
- Backup anomaly detection
- Malware detection
- NetBackup Web UI Malware scanning workflow configuration
Removing trust between a host and a master server
A NetBackup host can trust multiple Certificate Authorities (master servers) at any time. For various reasons, it may be necessary for a NetBackup host to remove trust from a master server that previously had been trusted.
For example, if a NetBackup client is moved from one master server to another, it is advisable to remove trust from the first master server. Security best practices suggest trusting the fewest entities required to function correctly. Also, if a NetBackup host no longer needs to communicate with hosts from a specific NetBackup domain, remove the CA certificate for that master from the trust store of the host.
Note:
Removing a CA certificate does not remove the host ID-based or host name-based certificates that the host may have obtained from that CA. The nbcertcmd -listCertDetails continues to show the host ID-based certificate.
When the CA certificate is removed from a host, the host ID-based certificate issued by that CA will not automatically renew because the host no longer trusts the CA. The host ID-based certificate eventually expires.
Removing trust between a host and a master server
- The administrator of the non-master host runs the following command on the host to determine the CA certificate fingerprint of the master server:
nbcertcmd -listCACertDetails
In this example output, the host has certificates from two master servers:
nbcertcmd -listCACertDetails Subject Name : /CN=nbatd/OU=root@master1.abc.com/O=vx Start Date : Aug 23 14:16:44 2016 GMT Expiry Date : Aug 18 15:31:44 2036 GMT SHA1 Fingerprint : 7B:0C:00:32:96:20:36:52:92:E8:62:F3:56: 74:8B:E3:2E:4F:22:4C Subject Name : /CN=nbatd/OU=root@master2.xyz.com/O=vx Start Date : Aug 25 12:09:55 2016 GMT Expiry Date : Aug 20 13:24:55 2036 GMT SHA1 Fingerprint : 7A:C7:6E:68:71:6B:82:FD:7E:80:FC:47:F6: 8D:B2:E1:40:69:9C:8C
- The administrator wants to remove trust to the second master server and runs the following command on the host:
nbcertcmd -removeCACertificate - fingerprint 7A:C7:6E:68:71: 6B:82:FD:7E:80:FC:47:F6:8D:B2:E1:40:69:9C:8C
Include the entire fingerprint, including the colons.
- The NetBackup Administration Console on the master server displays the certificate state as Active. However, that certificate does not automatically renew and eventually expires. The NetBackup administrator should revoke the certificate of the host if the host is no longer going to be part of the NetBackup domain.