Duo Single Sign-On for Veritas NetBackup

Overview

As business applications move from on-premises to cloud hosted solutions, users experience password fatigue due to disparate logons for different applications. Single sign-on (SSO) technologies seek to unify identities across systems and reduce the number of different credentials a user has to remember or input to gain access to resources.

While SSO is convenient for users, it presents new security challenges. If a user's primary password is compromised, attackers may be able to gain access to multiple resources. In addition, as sensitive information makes its way to cloud-hosted services it is even more important to secure access by implementing two-factor authentication and zero-trust policies.

About Duo Single Sign-On

Duo Single Sign-On is our cloud-hosted SSO product which layers Duo's strong authentication and flexible policy engine on top of Veritas NetBackup logins. Duo Single Sign-On acts as an identity provider (IdP), authenticating your users using existing on-premises Active Directory (AD) or another SSO IdP. Duo SSO prompts users for two-factor authentication and performs endpoint assessment and verification before permitting access to Veritas NetBackup.

Duo Single Sign-On is available in Duo Premier, Duo Advantage, and Duo Essentials plans, which also include the ability to define policies that enforce unique controls for each individual SSO application. For example, you can require that Salesforce users complete two-factor authentication at every login, but only once every seven days when accessing Veritas NetBackup. Duo checks the user, device, and network against an application's policy before allowing access to the application.

Configure Single Sign-On

Before configuring Veritas NetBackup with Duo SSO using Security Assertion Markup Language (SAML) 2.0 authentication you'll first need to enable Duo Single Sign-On for your Duo account and configure a working authentication source.

Once you have your SSO authentication source working, continue to the next step of creating the Veritas NetBackup application in Duo.

Create the Veritas NetBackup Application in Duo

1. Log on to the Duo Admin Panel and navigate to Applications → Protect an Application.

2. Locate the entry for Veritas NetBackup with a protection type of "2FA with SSO hosted by Duo (Single Sign-On)" in the applications list. Click Protect to the far-right to start configuring Veritas NetBackup. See Protecting Applications for more information about protecting applications with Duo and additional application options. You'll need the information on the Veritas NetBackup page under Downloads later.

3. Veritas NetBackup uses the Mail attribute when authenticating. We've mapped the <Email Address> bridge attribute to Duo Single Sign-On supported authentication source attributes as follows:

   Bridge Attribute	Active Directory	SAML IdP
   <Email Address>	mail	Email

   If you are using a non-standard email attribute for your authentication source, check the Custom attributes box and enter the name of the attribute you wish to use instead.

4. You can adjust additional settings for your new SAML application at this time — like changing the application's name from the default value, enabling self-service, or assigning a group policy.

5. Keep the Duo Admin Panel tab open. You will come back to it later.

Duo Universal Prompt

The Duo Universal Prompt provides a simplified and accessible Duo login experience for web-based applications, offering a redesigned visual interface with security and usability enhancements.

Universal Prompt	Traditional Prompt

The Duo Veritas NetBackup application supports the Universal Prompt by default, so there's no additional action required on your part to start using the newest authentication experience.

Activate Universal Prompt

Activation of the Universal Prompt is a per-application change. Activating it for one application does not change the login experience for your other Duo applications. Universal Prompt is already activated for new Veritas NetBackup applications at creation.

The "Universal Prompt" area of the application details page shows that this application's status is "Activation complete", with these activation control options:

• Show traditional prompt: Your users experience Duo's traditional prompt via redirect when logging in to this application.
• Show new Universal Prompt: (Default) Your users experience the Universal Prompt via redirect when logging in to this application.

The application's Universal Prompt status shows "Activation complete" both here and on the Universal Prompt Update Progress report.

For the time being, you may change this setting to Show traditional prompt to use the legacy experience. Keep in mind that support for the traditional Duo prompt ended for the majority of applications in March 2024. This option will be removed in the future.

Universal Update Progress

Click the See Update Progress link to view the Universal Prompt Update Progress report. This report shows the update availability and migration progress for all your Duo applications. You can also activate the new prompt experience for multiple supported applications from the report page instead of visiting the individual details pages for each application.

Enable Veritas NetBackup for SSO

1. Open a command line interface (CLI), like Terminal or Command Prompt.

2. In the CLI, navigate to the directory where Veritas NetBackup is installed and press Enter.

   Example: cd C:\Program Files\Veritas\NetBackup\bin

3. Type bpnbat -login and press Enter.

4. On the Authentication Broker command line, enter your machine hostname and press Enter. Make a note of your hostname. You will need it later.

5. On the Authentication port command line, enter your port number and press Enter. The default port number 0.

6. On the Authentication type command line, enter your applicable authentication method from the list provided (NIS, NISPLUS, WINDOWS, vx, unixpwd, ldap) and press Enter.

7. On the Domain command line, enter your machine domain. This is the same value you entered on the Authentication Broker command line in step 4 earlier.

8. On the Login Name command line, enter your Veritas NetBackup username and press Enter.

9. On the Password command line, enter your Veritas NetBackup password and press Enter.

10. Return to the Duo Admin Panel. Under "Downloads", click Download XML.

11. Return to your CLI. Type the command exactly as it is shown in the example below, but replace YourIdP with a unique name for your IdP, and replace C:\Users\Administrator\Downloads\Veritas NetBackup Metadata.xml with the path to the XML file you downloaded from Duo earlier. After you have edited the command, press Enter.

    Example: nbidpcmd - ac -n YourIdP -mxp "C:\Users\Administrator\Downloads\Veritas NetBackup Metadata.xml" -e true -cCert

12. In the CLI, type nbidpcmd -scl to check your configuration and confirm the following:

    • Identity provider name: [YourIdP]
    • Identity provider type: [SAML2]
    • Enabled: [true]

13. Open a new web page tab. In the web address bar, type https://yourhostname/netbackup/sso/saml2/metadata. Replace yourhostname with the hostname you noted earlier.

14. Press Enter to download the metadata file from Veritas NetBackup.

15. Return to the Duo Admin Panel. Under "Service Provider", click Choose File and open the metadata file you downloaded from Veritas NetBackup earlier.

Group Mapping

Group mapping is required. To map Duo groups to groups in Veritas NetBackup, do the following:

1. In the Duo Admin Panel, type the RBAC group name that you created when you created your Veritas NetBackup account into the Duo Admin Panel Veritas NetBackup Group field.

2. Select the applicable Duo group from the Duo groups drop-down menu.

   

3. Scroll to the bottom of the page and click Save.

Add a User or Group

After you map your RBAC group to Duo groups, you will need to add the users or group that you want to enable SSO for.

1. Log into your Veritas NetBackup account dashboard.

2. In the left menu sidebar, navigate to Security → RBAC. The "Role-based access control" page opens.

3. Click the Roles tab.

4. In the "Role" column, click the role that you want to assign. The page for the role you selected opens.

5. Make sure the Users tab is selected.

6. Click the Sign-in type drop-down menu and select SAML user or SAML group.

   Note: SAML user allows you to add specific users to sign in with SSO. SAML group allows you to enable all users in your RBAC group to sign in with SSO.

7. In the User or group field, if you selected SAML user in step 6, enter the email of the user that you want to enable SSO for. If you selected SAML group, enter the name of your RBAC group.

8. Click Add to list.

Learn more about Veritas NetBackup SSO at Veritas Support.

Using SSO

You can log on to Veritas NetBackup by navigating to your Veritas NetBackup SSO page e.g., https://yourhostname/webui/login. Click Sign in with single sign-on (SSO) to be redirected to Duo Single Sign-On to begin authentication.

Active Directory Login

With Active Directory as the Duo SSO authentication source, enter the primary username (email address) on the Duo SSO login page and click or tap Next.

Enter the AD primary password and click or tap Log in to continue.

Enable Duo Passwordless to log in to Duo SSO backed by Active Directory authentication without entering a password in the future.

SAML Login

With another SAML identity provider as the Duo SSO authentication source, Duo SSO immediately redirects the login attempt to that SAML IdP for primary authentication. Users do not see the Duo SSO primary login screen.

Duo Authentication

Successful verification of your primary credentials by Active Directory or a SAML IdP redirects back to Duo. Complete Duo two-factor authentication when prompted and then you'll return to Veritas NetBackup to complete the login process.

* Universal Prompt experience shown.

Veritas NetBackup supports SP-initiated authentication only, meaning that you must start your SSO login from that application's sign-in page. You won't be able to add Veritas NetBackup as an application tile in Duo Central for IdP-initiated logins.

Congratulations! Your Veritas NetBackup users now authenticate using Duo Single Sign-On.

See the full user login experience, including expired password reset (available for Active Directory authentication sources) in the Duo End User Guide for SSO.

Enable Remembered Devices

To minimize additional Duo two-factor prompts when switching between Veritas NetBackup and your other Duo Single Sign-On SAML applications, be sure to apply a shared "Remembered Devices" policy to your SAML applications.

Troubleshooting

Need some help? Try searching our Knowledge Base articles or Community discussions. For further assistance, contact Support.