Tableau Server Single Sign-On using DNN SAML as IDP

DotNetNuke (DNN) SAML IDP module acts as a SAML 2.0 Identity Provider which can be configured to establish the trust between the module and various SAML-compliant service providers to securely authenticate the user using the DotNetNuke (DNN) site credentials. miniOrange provides a ready to use solution for SAML 2.0 Login using DotNetNuke credentials. Here we will go through a step-by-step guide to configure Single Sign-On (SSO) between DotNetNuke(DNN) and Tableau Server considering DotNetNuke(DNN) as IDP. To know more about the other features we provide, click here.

Pre-requisites : Download And Installation

• Download the DNN SAML Identity Provider (IDP) module.
• Upload the installation package dnn-saml-single-sign-on-sso-idp_xxx_Install by going in Settings > Extension > Install Extension.

• Open any of the page on your DNN site (Edit mode) and Click on Add Module.

• Search for moDNNSAMLIDP and click on the moDNNSAMLIDP. Drag and drop the module on the page where you want.

• You have finished with the Installation of the module on your DNN site.

1. Configure Tableau Server as SP

• From the list of service providers given below, select Tableau Server.

• There are two options in the module to share your IDP metadata to the service provider. Either you can share metadata URL or you can download the metadata (XML) file.

• Login to your Tableau Services Manager as Admin.
• In the Configuration tab, select User Identity Access, then click on Authentication Method tab.

To configure Tableau Server follow the given steps.

• In Authentication Method, select SAML and provide the data from the IDP Metadata tab of the plugin.

Tableau Server return URL	Enter the URL that Tableau Server users will access.
SAML Entity ID	The entity ID uniquely identifies your Tableau Server installation to the IDP. You can enter your Tableau Server URL again here.
SAML certificate and key files	Click on Select File to upload the SAML certificate and SAML key. You can generate the self-signed certificate using OpenSSL using the following command openssl req -x509 -sha256 -nodes -newkey rsa:2048 -keyout cert.key -days 365 -out cert.crt


• Click on Download XML Metadata File, this will be required for configuring the IDP.

• Navigate to the IDP Metadata tab of the DNN SAML IDP Plugin and download the IDP metadata file.
• Now, you can upload the Metadata XML File of the Identity Provider.


Note: In some cases, you may need to change the assertion values in the Tableau Server configuration to match the assertion names that are passed by your IDP.

• Enter the assertion values that you want to map during SSO.

Username	username
Display name	displayName
Email	email


• You can check or uncheck the checkbox if you wish to enable or disable the SAML Single Logout.

• Click on Save Pending Changes and then click on Pending Changes at the top of the page.

• Click Apply Changes and Restart to restart your Tableau server.

2. Configure DNN as SAML IDP

• There are two options to add an application for your Service Provider in the IDP module

A] Upload metadata using Upload SP Metadata option

• IDP module requires SP Entity ID and ACS URL values from your service provider. You may get the metadata file (.xml) or metadata URL.
• You can upload metadata using Upload SP Metadata option where you can upload metadata using XML file or URL.
• You may refer to the screenshot below:

• You can choose any one of the options according to the metadata format you have available.

B] Configure the Service Provider metadata manually



• Once configured service provider metadata, Update the module settings

3. Attribute Mapping

• In this steps you will map the DotNetNuke user attribute to be sent in the response to the Service Provider.
• NameID defines what SP is expecting in the subject element of SAML Assertion. Generally, NameID is Username or Email Address. You can select which user attribute you want to send in the NameID.
• You can add other attributes to be sent in SAML Assertion to SP. The attributes include user’s profile attributes such as first name, last name, fullname, username, email, custom profile attributes etc.

• After saving the attribute mapping, proceed further with the test configuration or perform actual SSO from your service provider.

4. Testing SSO

• In the Incognito browser window, enter the Tableau Server URL.
• The browser will redirect you to the DNN Login screen.
• Enter the DNN Credentials and click on Log in.
• If you are redirected back to your Tableau Server start page and logged in successfully, then your configuration is correct.

You have successfully configured DNN as SAML IDP ( Identity Provider) for achieving DNN SSO login into your Tableau Server.

You can configure the DNN SAML IDP module with any service provider such as Azure AD, Azure B2C, Google Apps, Zoho Desk, Salesforce, WordPress, Cognito, Moodle, Zapier, Zoho, Zoom, Tableau Server, Hubspot, TalentLMS, WSO2 or even with your own custom service providers. You can find more service providers here.

Additional Resources

• ASP.NET SAML Single Sign-On (SSO)
• DNN SAML Single Sign-On (SSO)
• nopCommerce SAML Single Sign-On (SSO)
• DNN REST API Authentication
• Web3 login for ASP.NET Applications