You can enable SAML authentication in an existing Informatica domain, or you can enable it when you create a domain.
When you enable a domain to use SAML authentication, all web applications that run in the domain use the default identity provider you specify when you enable SAML authentication in the domain. For example, if you configure AD FS as the identity provider, all web applications use AD FS as the identity provider, unless you configure a web application to use a different identity provider.
Select one of the following options:
Enable SAML authentication when you run Informatica installer.
You can enable SAML authentication and specify the identity provider URL when you configure the domain as part of the installation process.
Enable SAML authentication in an existing domain.
Use the infasetup updateDomainSamlConfig command to enable SAML authentication in an existing Informatica domain. You can run the command on any gateway node within the domain.
Enable SAML authentication when you create a domain.
Use the infasetup defineDomain command to enable SAML authentication when you create a domain.