r7 - 21 Jul 2011 - 21:30:48 - ElliottReznyYou are here: TWiki >  CSDocs Web  > PasswordChangeHowTo

How Do I Change My Password?

Password Requirements:

When choosing a new password, keep in mind that your password:

  • must be at least 8 characters long.
  • must contain at least 1 character from each of at least 3 different character classes. The character classes are:
    • lowercase letters
    • uppercase letters
    • numbers
    • punctuation (printable characters other than letters or numbers)
  • should not be based on a dictionary word, or a reversed dictionary word.
  • should not be based on personal information (name, phone number, address, license plate, login name, user id, etc).
  • should not be systematic (for example, "abcdef" or "1234").
  • should not be used for any other system or website.
  • should be changed periodically. We recommend at the beginning of every semester

See Wikipedia's Guidelines for Strong Passwords

On Linux systems:

Use the passwd command to change your password. This program will prompt you for your old password and then for your new password. You will be prompted to type your new password a second time to verify that you have entered it correctly.

On Windows systems:

Once you are logged in, press Ctrl-Alt-Delete to bring up the Security Options Dialog. Then click on the Change password... button. You will be presented with a window in which you can enter your old password and your new password, which you must enter twice to verify that you have entered it correctly.

If you are using a Mac:

You will have to log into a department machine either physically or through ssh and follow the linux directions

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CSDocs.PasswordChangeHowTo moved from CSDocs.SecurityFAQs on 22 Oct 2004 - 00:08 by MichelleCraft - put it back
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