https://cas.ust.hk/cas/ is the URL you should trust for logging in to CAS. The URL may end in "index.jsp" or "login" as both of these are okay. If you have been bounced to the CAS service whilst trying to access some other web site you'll ... Read More

You can logout of CAS by visiting https://cas.ust.hk/cas/logout and then close all browser windows. It is very important that you log out of CAS when you have finished using the computer, particularly if the computer is in a public area. If... Read More

This feature is for those who may require extra assurance about the privacy or security of the data they enter online while using a web site participating in the Central Authentication Service (CAS) single-signon service. When you log into CAS, you... Read More

In general, you will need to use your ITSC Network Password. In most cases this will be the same as your email password as the staff and student email servers also use the ITSC Network Account for authentication.  Read More

We used non-standard 8443 SSL port in early CAS server deployment. For compatibility reason, SSL port 8443 is also supported for those early deployed CAS applications. However, we strongly recommend to change to standard SSL port as there were... Read More

If you are using the Central Authentication Service (CAS), the following are reasons why you are asked to reenter your login credential besides you explicitly logged out of CAS: CAS uses a cookie to determine if a user has already logged in, and... Read More

The "s" in "https" means that it will establish a secure connection, offering encryption of information as it traverses the network and authenticates with the server. You can be sure that account name and password information typed into this web... Read More

Before entering your account name and password into the University's CAS login form, you should check that the web address of the page being displayed begins with https://cas.ust.hk/cas/ The reason for checking the URL is to prevent a... Read More

All members of the university with a valid ITSC Network Account can use CAS to authenticate. Some of the web applications using CAS for authentication may only be accessible to some individuals depending on the nature of the application and the... Read More