# OpenAM Administration Guide
Chapter 9. Configuring Single Sign-On within One Domain

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# Chapter 9. Configuring Single Sign-On within One Domain

This chapter describes the configuration of Single Sign-On (SSO) services for multiple resources on one domain. To understand how SSO works, you need to understand some key elements of the HTTP cookie, as described in RFC 6525, HTTP State Management Mechanism.

With SSO a user can access multiple independent services from a single session.