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Tutorial: Microsoft Entra single sign-on (SSO) integration with Nuclino

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In this tutorial, you'll learn how to integrate Nuclino with Microsoft Entra ID. When you integrate Nuclino with Microsoft Entra ID, you can:

  • Control in Microsoft Entra ID who has access to Nuclino.
  • Enable your users to be automatically signed-in to Nuclino with their Microsoft Entra accounts.
  • Manage your accounts in one central location.

Prerequisites

To get started, you need the following items:

  • A Microsoft Entra subscription. If you don't have a subscription, you can get a free account.
  • Nuclino single sign-on (SSO) enabled subscription.

Scenario description

In this tutorial, you configure and test Microsoft Entra SSO in a test environment.

  • Nuclino supports SP and IDP initiated SSO.
  • Nuclino supports Just In Time user provisioning.

To configure the integration of Nuclino into Microsoft Entra ID, you need to add Nuclino from the gallery to your list of managed SaaS apps.

  1. Sign in to the Microsoft Entra admin center as at least a Cloud Application Administrator.
  2. Browse to Identity > Applications > Enterprise applications > New application.
  3. In the Add from the gallery section, type Nuclino in the search box.
  4. Select Nuclino from results panel and then add the app. Wait a few seconds while the app is added to your tenant.

Alternatively, you can also use the Enterprise App Configuration Wizard. In this wizard, you can add an application to your tenant, add users/groups to the app, assign roles, as well as walk through the SSO configuration as well. Learn more about Microsoft 365 wizards.

Configure and test Microsoft Entra SSO for Nuclino

Configure and test Microsoft Entra SSO with Nuclino using a test user called B.Simon. For SSO to work, you need to establish a link relationship between a Microsoft Entra user and the related user in Nuclino.

To configure and test Microsoft Entra SSO with Nuclino, perform the following steps:

  1. Configure Microsoft Entra SSO - to enable your users to use this feature.
    1. Create a Microsoft Entra test user - to test Microsoft Entra single sign-on with B.Simon.
    2. Assign the Microsoft Entra test user - to enable B.Simon to use Microsoft Entra single sign-on.
  2. Configure Nuclino SSO - to configure the single sign-on settings on application side.
    1. Create Nuclino test user - to have a counterpart of B.Simon in Nuclino that is linked to the Microsoft Entra representation of user.
  3. Test SSO - to verify whether the configuration works.

Configure Microsoft Entra SSO

Follow these steps to enable Microsoft Entra SSO.

  1. Sign in to the Microsoft Entra admin center as at least a Cloud Application Administrator.

  2. Browse to Identity > Applications > Enterprise applications > Nuclino > Single sign-on.

  3. On the Select a single sign-on method page, select SAML.

  4. On the Set up single sign-on with SAML page, click the pencil icon for Basic SAML Configuration to edit the settings.

    Edit Basic SAML Configuration

  5. On the Basic SAML Configuration section, if you wish to configure the application in IDP initiated mode, perform the following steps:

    a. In the Identifier text box, type a URL using the following pattern: https://api.nuclino.com/api/sso/<UNIQUE-ID>/metadata

    b. In the Reply URL text box, type a URL using the following pattern: https://api.nuclino.com/api/sso/<UNIQUE-ID>/acs

    Note

    These values are not real. Update these values with the actual Identifier and Reply URL from the Authentication section, which is explained later in this tutorial.

  6. Click Set additional URLs and perform the following step if you wish to configure the application in SP initiated mode:

    In the Sign-on URL text box, type a URL using the following pattern: https://app.nuclino.com/<UNIQUE-ID>/login

    Note

    These values are not real. Update these values with the actual Identifier, Reply URL and Sign-on URL. Contact Nuclino Client support team to get these values. You can also refer to the patterns shown in the Basic SAML Configuration section.

  7. Nuclino application expects the SAML assertions in a specific format, which requires you to add custom attribute mappings to your SAML token attributes configuration. The following screenshot shows the list of default attributes.

    image

  8. In addition to above, Nuclino application expects few more attributes to be passed back in SAML response which are shown below. These attributes are also pre populated but you can review them as per your requirements.

    Name Source Attribute
    first_name user.givenname
    last_name user.surname

  9. On the Set up single sign-on with SAML page, in the SAML Signing Certificate section, find Certificate (Base64) and select Download to download the certificate and save it on your computer.

    The Certificate download link

  10. On the Set up Nuclino section, copy the appropriate URL(s) based on your requirement.

    Copy configuration URLs

Create a Microsoft Entra test user

In this section, you'll create a test user called B.Simon.

  1. Sign in to the Microsoft Entra admin center as at least a User Administrator.
  2. Browse to Identity > Users > All users.
  3. Select New user > Create new user, at the top of the screen.
  4. In the User properties, follow these steps:
    1. In the Display name field, enter B.Simon.
    2. In the User principal name field, enter the username@companydomain.extension. For example, B.Simon@contoso.com.
    3. Select the Show password check box, and then write down the value that's displayed in the Password box.
    4. Select Review + create.
  5. Select Create.

Assign the Microsoft Entra test user

In this section, you'll enable B.Simon to use single sign-on by granting access to Nuclino.

  1. Sign in to the Microsoft Entra admin center as at least a Cloud Application Administrator.
  2. Browse to Identity > Applications > Enterprise applications > Nuclino.
  3. In the app's overview page, find the Manage section and select Users and groups.
  4. Select Add user, then select Users and groups in the Add Assignment dialog.
  5. In the Users and groups dialog, select B.Simon from the Users list, then click the Select button at the bottom of the screen.
  6. If you're expecting any role value in the SAML assertion, in the Select Role dialog, select the appropriate role for the user from the list and then click the Select button at the bottom of the screen.
  7. In the Add Assignment dialog, click the Assign button.

Configure Nuclino SSO

  1. In a different web browser window, sign in to your Nuclino company site as an administrator

  2. Click on the ICON.

    Screenshot that shows the "Menu" icon selected next to "Microsoft Entra S S O".

  3. Click on the Microsoft Entra SSO and select Team settings from the dropdown.

    Screenshot that shows the "Microsoft Entra S S O" drop-down with "Team settings" selected.

  4. Select Authentication from left navigation pane.

    Screenshot that shows "Authentication" selected.

  5. In the Authentication section, perform the following steps:

    Nuclino Configuration

    a. Select SAML-based single sign-on (SSO).

    b. Copy ACS URL (You need to copy and paste this to your SSO provider) value and paste it into the Reply URL textbox of the Basic SAML Configuration section.

    c. Copy Entity ID (You need to copy and paste this to your SSO provider) value and paste it into the Identifier textbox of the Basic SAML Configuration section.

    d. In the SSO URL textbox, paste the Login URL value which you copied previously.

    e. In the Entity ID textbox, paste the Microsoft Entra Identifier value which you copied previously.

    f. Open your downloaded Certificate(Base64) file in Notepad. Copy the content of it into your clipboard, and then paste it to the Public certificate text box.

    g. Click SAVE CHANGES.

Create Nuclino test user

In this section, a user called B.Simon is created in Nuclino. Nuclino supports just-in-time user provisioning, which is enabled by default. There is no action item for you in this section. If a user doesn't already exist in Nuclino, a new one is created after authentication.

Note

If you need to create a user manually, contact Nuclino support team.

Test SSO

In this section, you test your Microsoft Entra single sign-on configuration with following options.

SP initiated:

  • Click on Test this application, this will redirect to Nuclino Sign on URL where you can initiate the login flow.

  • Go to Nuclino Sign-on URL directly and initiate the login flow from there.

IDP initiated:

  • Click on Test this application, and you should be automatically signed in to the Nuclino for which you set up the SSO.

You can also use Microsoft My Apps to test the application in any mode. When you click the Nuclino tile in the My Apps, if configured in SP mode you would be redirected to the application sign on page for initiating the login flow and if configured in IDP mode, you should be automatically signed in to the Nuclino for which you set up the SSO. For more information about the My Apps, see Introduction to the My Apps.

Next steps

Once you configure Nuclino you can enforce session control, which protects exfiltration and infiltration of your organization’s sensitive data in real time. Session control extends from Conditional Access. Learn how to enforce session control with Microsoft Defender for Cloud Apps.