To ensure your system's security, the Solaris operating environment requires you use a password to access your system. Changing your password several times a year helps to ensure that you are the only user with easy access to your account.
If you believe someone has used your account without your permission, change your password immediately.
Choose a password that you can remember without writing it down. A password that you cannot remember is worse than one that is too easily guessed.
Choose a password that is at least six characters long and contains at least one number.
Don't use your own name or initials or the name or initials of your spouse.
Don't use the names of pets or objects common to your interests.
Don't use all capital letters.
If you have more than one account, don't use the same password for every account.
Avoid using the characters Ctrl-C, Ctrl-Z, Ctrl-U, Ctrl-S, Esc, Tab, #, and @ in your password. The terminal might interpret these characters as signals rather than text characters, and this interpretation would preclude you from properly typing in your password.
$ passwd passwd: Changing password for user2 Enter login password: New password: Re-enter new password: passwd (SYSTEM): passwd successfully changed for user2 $
When the system prompts you for Enter login password:, type your current password.
If no password is currently assigned to your account, the system skips the Old Password: prompt.
When the system prompts you for New Password:, type your new password.
Again, the password you type does not echo on the screen.
At the final prompt, Re-enter new password:, type your new password a second time.
Your system verifies that you typed the password you intended to type.
If you do not type your password precisely the way you did at the previous prompt, the system refuses to change your password and responds with the following message:
passwd: They don't match; try again.
If your system uses password aging (implemented with options to the passwd command), your password can have either a maximum, or a maximum and minimum lifespan. The lifespan of your password is set by your system administrator.
When your password reaches the maturity date, your system prompts you to change your password when you log in. The following message displays.
Your password has expired. Choose a new one.
The system then automatically runs the passwd program and prompts you for a new password.
Sorry, less than 2 weeks since the last change.
For more information on passwd(1) and password aging, refer to the man Pages(1): User Commands.