Question
How do I get help logging into CAS (Central Authentication Service)?
NOTE: If this is in regards to DUO and you are active staff or faculty, contact your local IT to assist you with your DUO devices.
DUO is required and often needs 2 authentication methods if you have set up touch ID only. See Getting Started with Duo for more help.
Overview
CAS provides a single sign-on (SSO) experience for several campus and departmental IT services. This is not the same as services that use ADFS authentication.
No one should save CAS pages to log in at a later time. If you have done this and are having issues logging in, please see Bookmarked a CAS page, not a site page.
Common access issues are:
- Forgot your login ID
- Forgot passphrase
- Bookmarked a CAS page, not a site page
- You are a new staff, faculty, student or affiliate and need to create/just created your account
- You are an applicant and have not signed you Statement of Intent to Register or other issue
- You are former staff, faculty, student or affiliate
- Beware of Phishing! Ensure you are logging into the service page and check for links made to look like UC Davis to obtain your passphrase.
Do not log in from this screen. It will fail as in the same manner as Bookmarked a CAS page, not a site page.
Answer
Applicants:
Please see our Applicant FAQ at applicant.ucdavis.edu.
Also see help for Log in and Passphrase access issues for more information.
Staff, faculty, students, or temporary affiliates:
- Forgot your Login ID?
- To retrieve your Login ID, call IT Express at (530) 754 – 4357 between 7:00 AM and 6:00 PM Pacific Time, Monday-Friday. For security reasons they are unable to process these requests via email or chat.
- Reset your passphrase
- Verify your passphrase
- If you are unsure of what your passphrase is, go to accounts.ucdavis.edu.
- Click Verify Your Passphrase.
New staff, faculty, students, and temporary affiliates:
Create your computing account with these instructions: KB000197 - Create your UC Davis Computer Account.
If you have created your account, it may still be processing. Please wait for overnight processes to complete before logging into services and email.
Your Bookmarked Page is not working:
CAS is not something you log into but how a site authenticates you.
If you are trying to log into a screen that's just "CAS", you will incur errors. To avoid this, do not bookmark login pages. The website for the department or service you are using has the log in session for you.
Always go to the website intended for the application (ex. canvas.ucdavis.edu, studentaccount.ucdavis.edu) when logging in. Use these sites over clicking a link in an email if you suspect the email is phishing. If you do suspect phishing, see this page for steps to report it: https://kb.ucdavis.edu/?id=08378
If you have left UC Davis:
Your computing account has closed. You cannot log into any CAS authenticated services.
- For UC Davis students who have left, see KB0000129.
- For any other UC Davis affiliate (staff, faculty, temporary affiliates), see KB0000168.
For more help, contact:
UC Davis Campus: IT Express at 530-754-HELP (4357)
UC Davis Health: Technology Operations Center at 916-734-HELP (4357)
Beware of Phishing
Sometimes hackers create fake pages that look like the CAS portal page. They do this to try to acquire UC Davis credentials, such as usernames, passwords, and even credit card details. This is called phishing.
If you do suspect phishing, see this page for steps to report it: https://kb.ucdavis.edu/?id=08378
Please be mindful of the URL in your web browser when authenticating through the CAS portal page. Also, check for the lock icon to the left of the URL.
This is what the CAS login page looks like: