---
title: "Central Authentication Service Configuration UI"
slug: "new-cas-configuration-ui"
description: "New user interface for configuring RapidIdentity SSO Federation with a Central Authentication Service. "
tags: ["What's New", "2021.10.22", "CAS", "Federation"]
updated: 2022-03-21T15:32:19Z
published: 2022-03-21T15:32:19Z
canonical: "help.rapididentity.com/new-cas-configuration-ui"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://help.rapididentity.com/llms.txt
> Use this file to discover all available pages before exploring further.

# New CAS Authentication Configuration UI

## New Central Authentication Service (CAS) Configuration User Interface

Now available both in RapidIdentity Cloud and RapidIdentity On-premise, a new User Interface enables administrators to easily configure RapidIdentity SSO Federation with a Central Authentication Service.

The [Central Authentication Service](https://en.wikipedia.org/wiki/Central_Authentication_Service#cite_note-casSpec-1) (CAS) is a single sign-on protocol for Web Applications and is just one of the many SSO protocols supported by RapidIdentity.

#### To create a CAS Single Sign-on connection, an administrator simply chooses CAS from the list of supported SSO protocols in RapidIdentity:

![image.png](https://cdn.document360.io/4d958006-b877-42af-8de5-00e3bb7fe41d/Images/Documentation/image%2826%29.png)

#### Administrators use the configuration UI in RapidIdentity to configure SSO with a Central Authentication Service:

![image.png](https://cdn.document360.io/4d958006-b877-42af-8de5-00e3bb7fe41d/Images/Documentation/image%2825%29.png)

## Related

- [How to Configure Single Sign-On with CAS](/setting-up-sso-with-cas.md)