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Tutorial: Azure Active Directory single sign-on (SSO) integration with Zscaler Three | Microsoft Docs
Learn how to configure single sign-on between Azure Active Directory and Zscaler Three.
active-directory
jeevansd
CelesteDG
celested
active-directory
saas-app-tutorial
identity
tutorial
05/11/2021
jeedes

Tutorial: Azure Active Directory single sign-on (SSO) integration with Zscaler Three

In this tutorial, you'll learn how to integrate Zscaler Three with Azure Active Directory (Azure AD). When you integrate Zscaler Three with Azure AD, you can:

  • Control in Azure AD who has access to Zscaler Three.
  • Enable your users to be automatically signed-in to Zscaler Three with their Azure AD accounts.
  • Manage your accounts in one central location - the Azure portal.

Prerequisites

To get started, you need the following items:

  • An Azure AD subscription. If you don't have a subscription, you can get a free account.
  • Zscaler Three single sign-on (SSO) enabled subscription.

Scenario description

In this tutorial, you configure and test Azure AD SSO in a test environment.

  • Zscaler Three supports SP initiated SSO.

  • Zscaler Three supports Just In Time user provisioning.

Note

Identifier of this application is a fixed string value so only one instance can be configured in one tenant.

Add Zscaler Three from the gallery

To configure the integration of Zscaler Three into Azure AD, you need to add Zscaler Three from the gallery to your list of managed SaaS apps.

  1. Sign in to the Azure portal using either a work or school account, or a personal Microsoft account.
  2. On the left navigation pane, select the Azure Active Directory service.
  3. Navigate to Enterprise Applications and then select All Applications.
  4. To add new application, select New application.
  5. In the Add from the gallery section, type Zscaler Three in the search box.
  6. Select Zscaler Three from results panel and then add the app. Wait a few seconds while the app is added to your tenant.

Configure and test Azure AD SSO for Zscaler Three

Configure and test Azure AD SSO with Zscaler Three using a test user called B.Simon. For SSO to work, you need to establish a link relationship between an Azure AD user and the related user in Zscaler Three.

To configure and test Azure AD SSO with Zscaler Three, perform the following steps:

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

Configure Azure AD SSO

Follow these steps to enable Azure AD SSO in the Azure portal.

  1. In the Azure portal, on the Zscaler Three application integration page, find the Manage section and select single sign-on.

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

  3. 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

  4. On the Basic SAML Configuration section, enter the values for the following fields:

    In the Sign-on URL text box, type the URL: https://login.zscalerthree.net/sfc_sso

  5. Your Zscaler Three 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.

    Screenshot shows User Attributes with the Edit icon selected.

  6. In addition to above, Zscaler Three 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 requirement.

    Name Source Attribute
    memberOf user.assignedroles

    [!NOTE] Please click here to know how to configure Role in Azure AD.

  7. 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

  8. On the Set up Zscaler Three section, copy the appropriate URL(s) based on your requirement.

    Copy configuration URLs

Create an Azure AD test user

In this section, you'll create a test user in the Azure portal called B.Simon.

  1. From the left pane in the Azure portal, select Azure Active Directory, select Users, and then select All users.
  2. Select New user at the top of the screen.
  3. In the User properties, follow these steps:
    1. In the Name field, enter B.Simon.
    2. In the User 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. Click Create.

Assign the Azure AD test user

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

  1. In the Azure portal, select Enterprise Applications, and then select All applications.
  2. In the applications list, select Zscaler Three.
  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 are expecting a role to be assigned to the users, you can select it from the Select a role dropdown. If no role has been set up for this app, you see "Default Access" role selected.
  7. In the Add Assignment dialog, click the Assign button.

Configure Zscaler Three SSO

  1. To automate the configuration within Zscaler Three, you need to install My Apps Secure Sign-in browser extension by clicking Install the extension.

    My apps extension

  2. After adding extension to the browser, click on Setup Zscaler Three will direct you to the Zscaler Three application. From there, provide the admin credentials to sign into Zscaler Three. The browser extension will automatically configure the application for you and automate steps 3-6.

    Setup

  3. If you want to setup Zscaler Three manually, open a new web browser window and sign into your Zscaler Three company site as an administrator and perform the following steps:

  4. Go to Administration > Authentication > Authentication Settings and perform the following steps:

    Screenshot shows the Zscaler One site with steps as described.

    a. Under Authentication Type, choose SAML.

    b. Click Configure SAML.

  5. On the Edit SAML window, perform the following steps: and click Save.

    Manage Users & Authentication

    a. In the SAML Portal URL textbox, Paste the Login URL which you have copied from Azure portal.

    b. In the Login Name Attribute textbox, enter NameID.

    c. Click Upload, to upload the Azure SAML signing certificate that you have downloaded from Azure portal in the Public SSL Certificate.

    d. Toggle the Enable SAML Auto-Provisioning.

    e. In the User Display Name Attribute textbox, enter displayName if you want to enable SAML auto-provisioning for displayName attributes.

    f. In the Group Name Attribute textbox, enter memberOf if you want to enable SAML auto-provisioning for memberOf attributes.

    g. In the Department Name Attribute Enter department if you want to enable SAML auto-provisioning for department attributes.

    h. Click Save.

  6. On the Configure User Authentication dialog page, perform the following steps:

    Screenshot shows the Configure User Authentication dialog box with Activate selected.

    a. However over the Activation menu near the bottom left.

    b. Click Activate.

Configuring proxy settings

To configure the proxy settings in Internet Explorer

  1. Start Internet Explorer.

  2. Select Internet options from the Tools menu for open the Internet Options dialog.

    Internet Options

  3. Click the Connections tab.

    Connections

  4. Click LAN settings to open the LAN Settings dialog.

  5. In the Proxy server section, perform the following steps:

    Proxy server

    a. Select Use a proxy server for your LAN.

    b. In the Address textbox, type gateway.Zscaler Three.net.

    c. In the Port textbox, type 80.

    d. Select Bypass proxy server for local addresses.

    e. Click OK to close the Local Area Network (LAN) Settings dialog.

  6. Click OK to close the Internet Options dialog.

Create Zscaler Three test user

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

Note

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

Test SSO

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

  • Click on Test this application in Azure portal. This will redirect to Zscaler Three Sign-on URL where you can initiate the login flow.

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

  • You can use Microsoft My Apps. When you click the Zscaler Three tile in the My Apps, this will redirect to Zscaler Three Sign-on URL. For more information about the My Apps, see Introduction to the My Apps.

Next steps

Once you configure Zscaler Three 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 Cloud App Security.