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How to Change User Passwords with passwd
In Linux, managing user accounts includes the ability to change passwords. The passwd command is used to change a user’s password efficiently and securely. This tutorial will guide you on how to use the passwd command to change user passwords.
1. Changing Your Own Password
To change your own user password, simply open a terminal and run:
passwdYou will be prompted to enter your current password and then your new password twice for confirmation.
2. Changing Another User’s Password
If you are an administrator and need to change another user’s password, use the following command:
sudo passwd usernameReplace username with the actual username of the account whose password you wish to change. You will not need to enter the current password for the user.
3. Password Complexity Requirements
When setting a new password, ensure that it meets complexity requirements. Passwords typically need a mix of:
- At least 8 characters long
- Uppercase and lowercase letters
- Numerical digits
- Special characters
If the password does not meet these criteria, the system will reject it and prompt you to try again.
4. Changing Passwords for Root User
As the root user, you can change any user’s password without needing their current one. Use:
passwd rootMake sure you are cautious while changing the root password, as forgetting it can lock you out of critical system functions.
5. Conclusion
By following this tutorial, you have learned how to use the passwd command to manage user passwords in Linux. Remember to use strong, unique passwords to maintain the security of your accounts. Regularly updating passwords is a good practice for protecting your system!
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