The UC Davis Health System Portal uses the UC Davis Kerberos (CAS) login to gain access.

UC Davis Health System
Software Authentication Methods

Context for authentication technologies
- The Health System has multiple methods to manage how software is accessed. These methods are typically created and setup when software is first installed. In years past, it was common for each software vendor to create local or unique capability to manage access; and this is the reason facility and staff often has many passwords to manage.

The modern approach to manage access to software is to use shared technology to manage the identity of people authorized to use software, and also manage the passwords and other methods to access the system (called authentication).

The goal is to install new software applications that use a shared authentication service (CAS or AD), and to convert legacy applications over time to use common authentication. Using shared authentication will dramatically reduce the number of passwords people have to use and manage.

Active Directory (AD) – AD is used to login into UCDHS clients (microcomputers). AD is a Microsoft directory service to authenticate and authorize access to Windows domain based technologies. At UCDHS, the AD and Citrix accounts (passwords) are the same.

Central Authentication Service (CAS) - The CAS account is an UC Davis enterprise level single sign-on service to manage access for (some) software applications delivered via a web browser. For web sites that use CAS, once the password is entered, all subsequent access to CAS-based applications will be supported without further logins during the browser session.

Unique - These are applications with their own capability to define the identity of people given permission to use the system and also manage a unique password / authentication process for that software application. These types of software applications don’t share enterprise-level identify management and authentication tools such as AD or CAS.

Citrix – Server based technology that hosts and manages access to software applications. Citrix is often used to provide ‘remote’ access to an application, or to run software on a server vs. running the software on hundreds of client computers.