Duo Protection for Confluence SSO with Duo Access GatewayLast Updated: February 15th, 2022
Duo Access Gateway reached Last Day of Support on October 26, 2023 for Duo Essentials, Advantage, and Premier customers. After that date, Duo Support may only assist with the migration of existing Duo Access Gateway applications to Duo Single Sign-On. Please see the Guide to Duo Access Gateway end of life for more details.
Use the Duo Single Sign-on Generic Service Provider application to protect Confluence with Duo Single Sign-On, our cloud-hosted identity provider featuring Duo Central and the Duo Universal Prompt.
If you already use Duo Access Gateway to protect Confluence, try the DAG to Duo SSO application migration process.
If you're looking to protect non-SAML logins to your Confluence service, please see our Confluence plugin documentation.
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.
Duo Access Gateway
Duo Access Gateway (DAG), our on-premises SSO product, layers Duo's strong authentication and flexible policy engine on top of Confluence logins using the Security Assertion Markup Language (SAML) 2.0 authentication standard. Duo Access Gateway acts as an identity provider (IdP), authenticating your users using existing on-premises or cloud-based directory credentials and prompting for two-factor authentication before permitting access to Confluence.
Duo Access Gateway is included in the 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 Confluence. Duo checks the user, device, and network against an application's policy before allowing access to the application.
Deploy or Update Duo Access Gateway
Install Duo Access Gateway on a server in your DMZ. Follow our instructions for deploying the server, configuring DAG settings, and adding your primary authentication source.
Add the attributes from the table below that correspond to the Duo attributes Mail attribute and Username attribute in the "Attributes" field when configuring your Active Directory or OpenLDAP authentication source in the DAG admin console, separated by a comma. For example, if Active Directory is your authentication source, enter mail,sAMAccountName in the "Attributes" field.
Duo Attribute Active Directory OpenLDAP Mail attribute Username attribute sAMAccountName uid
If your organization uses other directory attributes than the ones listed here then enter those attribute names instead. If you've already configured the attributes list for another cloud service provider, append the additional attributes not already present to the list, separated by a comma.
After completing the initial DAG configuration steps, click Applications on the left side of the Duo Access Gateway admin console.
Scroll down the Applications page to the Metadata section. This is the information you need to provide to Confluence when configuring SSO. Click the Download Certificate link to obtain the token signing certificate (the downloaded file is named "dag.crt").
Install the Confluence SSO Plugin
Confluence does not natively support SAML authentication. Purchase the third-party plugin SAML SingleSignOn for Confluence and enable it in your environment before continuing.
Configure the Confluence SSO Plugin
Add the Duo Access Gateway as a new single sign-on provider for Confluence.
Log on to Confluence as an administrative user and navigate to Confluence Administration → Add-ons → Manage add-ons.
Click on SAML SingleSignOn for Confluence. If the add-on is not already enabled click Enable; then click Configure.
Copy the SSO URL information from the Duo Access Gateway admin console Metadata display and paste it into the Confluence SAMLSSO plugin IdP URL field.
Make sure the Redirect login requests box is checked.
The "IdP Certificate (Base64)" is the DAG Metadata certificate supplied by Duo Access Gateway. Open the dag.crt file in a text editor (like Notepad), and copy the entire contents of the file (including the
-----END CERTIFICATE-----lines). Paste the certificate file text into this field.
After you've entered all the required information click Save settings.
Learn more about Confluence SSO at the SAML Single Sign On Plugin page.
Create the Confluence Application in Duo
Log on to the Duo Admin Panel and navigate to Applications.
Click Protect an Application and locate the entry for Confluence with a protection type of "2FA with SSO self-hosted (Duo Access Gateway)" in the applications list. Click Protect to the far-right to start configuring Confluence. See Protecting Applications for more information about protecting applications in Duo and additional application options.
The Domain name is the domain of your Confluence environment. For example, if your Confluence login URL is https://yourdomain.com then enter yourdomain.com in this field.
Confluence SSO uses the Username attribute when authenticating. We've mapped *Username attribute to DAG supported authentication source attributes as follows:
Duo Attribute Active Directory OpenLDAP SAML IdP Azure Username attribute sAMAccountName uid sAMAccountName
If you are using a non-standard username attribute for your authentication source, check the Custom attributes box and enter the name of the attribute you wish to use instead.
Click Save Configuration to generate a downloadable configuration file.
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 — or come back and change the application's policies and settings after you finish SSO setup. If you do update any settings, click the Save Changes button when done.
Click the Download your configuration file link to obtain the Confluence application settings (as a JSON file).Important: This file contains information that uniquely identifies this application to Duo. Secure this file as you would any other sensitive or password information. Don't share it with unauthorized individuals or email it to anyone under any circumstances!
Add the Confluence SSO Application to Duo Access Gateway
Before you do this, verify that you updated the "Attributes" list for your Duo Access Gateway authentication source as specified here.
Return to the Applications page of the DAG admin console session.
Click the Choose File button in the "Add Application" section of the page and locate the Confluence SAML application JSON file you downloaded from the Duo Admin Panel earlier. Click the Upload button after selecting the JSON configuration file.
The Confluence SAML application is added.
You can log on to Confluence using your organization’s domain login page e.g. https://yourdomain.com. Clicking the Log In button redirects to the Duo Access Gateway login page. Enter your primary directory logon information, approve Duo two-factor authentication, and get redirected back to the Confluence site after authenticating.
Congratulations! Your Confluence users now authenticate using Duo Access Gateway.
If you plan to permit use of WebAuthn authentication methods (security keys, U2F tokens, or Touch ID) in the traditional Duo Prompt, Duo recommends configuring allowed hostnames for this application and any others that show the inline Duo Prompt before onboarding your end-users.
The Duo Universal Prompt has built-in protection from unauthorized domains so this setting does not apply.
Microsoft AD FS
Microsoft's Active Directory Federation Services (AD FS) is a popular choice for SSO because it easily integrates with the AD identity store many organizations already have deployed. Duo's support for cloud applications and SSO drops in to an existing AD FS installation to provide secondary authentication after a user passes primary authentication (successful Active Directory logon).
If you don't already have AD federation running the first step is to install and configure Microsoft AD FS in your organization. Deployment Guides for AD FS versions 2.1, and 3.0/4.0 are available from Microsoft.
Once your AD FS services are up and running, the second step is to configure the SSO partnership between your AD FS service and the external cloud resource, in this case Confluence. Learn more about configuring Confluence SSO with AD FS at the SAML Single Sign On Plugin page.
After you have successfully configured and tested AD FS SSO login to Confluence using your AD domain credentials, you can then install the Duo AD FS integration. AD FS protection is included with Duo's paid plans.
With the Duo integration for AD FS installed, users pass primary authentication to the AD FS service as usual. Once primary authentication succeeds, users are forwarded to the Duo service for secondary authentication. After approving logon using one of Duo's authentication methods, the user is fully logged in to Confluence.
Other Identity Partners
Using a third-party SSO provider for cloud application access? Duo partners with leading cloud SSO providers like Okta and OneLogin to secure access with our strong and flexible authentication platform.