Configure SSO with Optimal as your identity provider

If you use Optimal as your Identity Provider (IdP), follow these instructions to configure the Splunk platform for single sign-on.

After you configure the Splunk platform for SSO, you can map groups form the IdP to those roles so that users can log in. See Map groups on a SAML identity provider to Splunk user roles so that users in those groups can log in.

Prerequisites and considerations for configuring the Splunk platform to use Optimal as an identity provider

• On Splunk Enterprise, confirm that you configure the enableSplunkWebSSL setting in the $SPLUNK_HOME/etc/system/local/web.conf configuration file, otherwise login can fail.
• An error in configuring SAML can result in users being locked out of Splunk Cloud Platform. Use the following link to access the local login using native authentication if you are locked out. In the link, replace <name> with your account name:

  https://<name>.splunkcloud.com/en-US/account/login?loginType=splunk

Configure the Splunk platform to use SAML

1. Verify that your system meets all of the requirements. See Configure single sign-on with SAML.
2. In Splunk Web, click Settings > Authentication methods.
3. Select SAML as your authentication type.
4. Click Configure Splunk to use SAML.
5. On the SAML Groups page, click SAML Configuration.
6. Download or browse and select your metadata file, or copy and paste your metadata directly into the text window. Refer to your IdP documentation if you're not sure how to get your metadata file.
7. In General Settings, provide the following information:

   Setting	Description
   Single Sign on URL	This field is populated automatically by your selected metadata file. It is the protected endpoint on your IdP to which Splunk sends authentication requests. If you use Splunk Cloud and access the instance on a non-standard network port, open a support ticket to have the Splunk Cloud operations team open that port for communicating with the IdP. Your users use this URL for SSO login. To access the login page once SAML is enabled, append the full login URL (/account/login) with loginType=Splunk. Users can also log into their local Splunk account by navigating directly to – splunkweb:port/en-US/account/login?loginType=Splunk
   Single Log Out URL	This field is populated automatically by the metadata file and is the IdP protocol endpoint. If you do not provide this URL, the user will not be logged out.
   IdP's certificate path	This value can be a directory or a file, depending on your IdP requirements. If you provide a file, Splunk uses that file to validate authenticity of SAML response. If you provide a directory, Splunk looks for all the certificates that are present as children of the directory and tries to validate SAML response with each one of them, if Splunk fails to validate authenticity with all of them, response is not considered authentic.
   IdP certificate chains	If you use a certificate chain, order them as follows: Root Intermediate Leaf
   Replicate certificates	Check this to replicate your IdP certificates in a search head cluster. When configuring SAML on a search head cluster, you must use the same certificate for each search head.
   Issuer Id	The entity ID of the IdP. See your IdP documentation if you are not sure where to find this information.
   Entity ID.	The entity ID as configured in the SP connection entry in your IdP.
   Sign AuthRequest	Select this option.
   Sign SAML Response.	Select this option.

8. Skip the Attribute Query section and proceed to the next step.
9. (Optional) In the Alias section, provide the following aliasing information:

   Role Alias	Use this field to specify a new attribute name on any IdP and then configure an alias in your Splunk deployment for any of the three attributes.
   Real Name Alias	You can skip this field. For ADFS you can use the displayname for the Attribute Alias Real Name.
   Mail Alias	Skip this field.

10. Populate the advanced section only if you need to set up load balancing or change the SAML binding. See Configure load balancing or SAML bindings.
11. Click Save.

Next step

Map SAML groups to Splunk Enterprise roles