Keberos/Ann Arbor Password - Useage, Restrictions, and How to Change it.
The Kerberos password is the password that is used mainly for programs put forth by the University of Michigan- Ann Arbor. Kerberos has many requirements about what it can or cannot be.

Kerberos is used for

•  Mirlyn (Library Catalog)
• Viewing paystubs online (for employees only)
• Accessing and editing your U-M Online Directory entry
• PEERS
• Other resources available on UM-Ann Arbor websites

Kerberos Restriction

1. It must be at least eight characters long* 
2. It cannot contain three letters forwards or backwards from your name or uniqname
3. It cannot contain repeating numbers (i.e. 333) or sequences (i.e. 123) 
4. It doesn't like most dictionary words ** 
5. It cannot be any personal information (i.e. address, kids names) 
6. I must have at least two numbers and letters

*It seems that the longer the password it is, the easier it is to set
** The easiest way to remedy this is to switch numbers for letters (i.e. instead of using 'tree' use 'tr3e') . Please see related articles for common number-letter switches
Option 1: Change Password through Ann Arbor's site:

This works if you know you current password

1. Open Internet Explorer.In the address bar, type: https://weblogin.umich.edu/ and press Enter. 
2. At the prompt enter your uniqname and current Kerberos password and then click the Log In button.
   
   Type your current Ann Arbor password - it is case-sensitive
3. Click the link kpasswd: Change Your Kerberos Password. 
4. In the Current Password field, enter your current Kerberos. 
5. In the New Password field, enter a new password. and press the <tab> key. 
6. Retype the new password in the Retype New Password field and press the <tab> key. 
7. Click Submit. If you enter an acceptable new password the same twice, the password will be changed. 
8. Once you have successfully changed your password, you will be asked leave a hint to help you remember your password and to select a challenge option. Enter your hint and your challenge question and answer and click Save and Continue. 
9. After you have successfully completed this, click Logout. 

Option 2: Change Password through SIS (Students Only)
Please note that this will change both LAN/Kerberos passwords.

1. Login to SIS, click on Personal Information.
2. Click My Campus Computer Account. 
   
   Note: The first time you view your account, you will be asked to set your initial LAN and Kerberos password.
3. Click on Change LAN & Kerberos Password. 
4. Enter what you want your new LAN/Kerberos password to be in the Enter New Password field. Retype your prospective password in the Confirm New Password field.
   
   (To see what the window will look like refer to the image under Option 4 from “To Change your LAN Password Your new password must meet all password requirements listed on this page: http://www.umflint.edu/its/units/initiatives/publicity/passwords/dictionary_list.htm as well as containing a MIX of numbers and letters.
5. Click on Change Password.Changing your password in this manner will change BOTH your LAN password (used for logging into computers on campus, email, and Blackboard) and your Kerberos/Ann Arbor password (used for dial-up services, accessing Mirlyn, and editing your UMICH directory entry). If you wish to change ONLY your Kerberos password please follow Option 1, or stop by the ITS Helpdesk with a picture ID.