How to change your password from off campus
From ITS Wiki
To change your email/login/network password when you are not on Centre's campus go to this webpage:
You will need to supply your email address, old password and new password to a web form. Your password must be at least 5 characters long. Due to security reasons, you will be asked to change your password every 180 days. Remember, a good password consists of 8 characters, with a combination of numbers and letters.