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To change your password, type passwd in any terminal window and answer the subsequent prompts. Be sure to select a password that is both easy to remember but difficult for others to figure out. Here are some guidelines:
- Don't use your login name in any form.
- Don't use your first or last name in any form.
- Don't use other information about you that is easily obtainable - this includes license plate numbers, phone numbers, names of friends, etc.
- Don't use all digits or all the same letter.
- Don't use a common English or foreign-language word. Many
password-cracking programs dictionaries to guess passwords.
The password program enforces the following restrictions on passwords:
- must be 6-8 characters long
- cannot include space, colon, or control characters
- must include both upper- and lower-case letters
- must contain at least one non-alphabetical character that is neither the first or last character
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