linux passwd check failed

If you are receiving a "passwd check failed" error message in Linux, it means that the system is unable to authenticate your password. This could be due to a number of reasons, including:

1. Incorrect password: Ensure that you are typing the correct password, and that the Caps Lock key is not enabled.

2. Expired password: If your password has expired, you will need to reset it before you can log in. This can typically be done by logging in as the root user and changing the password for your account.

3. Locked account: If your account has been locked, you will need to contact your system administrator to have it unlocked.

4. System issue: If none of the above solutions work, there may be a system issue that is preventing you from logging in. In this case, you will need to troubleshoot the issue or contact your system administrator for assistance.

To troubleshoot the issue, you can try resetting your password using the "passwd" command, or check the system logs for any error messages related to authentication or login issues.