Home > Storage > PowerScale (Isilon) > Product Documentation > Management and Migration > PowerScale OneFS Authentication, Identity Management, and Authorization > SAML-based SSO for WebUI
Security Assertion Markup Language (SAML) is an open standard for sharing security information about identity, authentication, and authorization across different systems. SAML is implemented with the Extensible Markup Language (XML) standard for sharing data. SAML defines three categories of entities:
Beginning with version 9.5.0.0, OneFS supports SAML-based SSO for the WebUI by using ADFS. You can enable or disable the OneFS WebUI SSO feature at the access zone level. OneFS also allows you to configure one IdP for each access zone.