How Can I Change the Password for Logging In to a Linux ECS?

Solution

1. Use the existing key file to log in to the Linux ECS as user root.
2. Run the following command to reset the password of user root:

   passwd

   To reset the password of another user, replace passwd with passwd username.

3. Enter the new password as prompted.

   New password:
   Retype new password:
   
   

   If the following information is displayed, the password has been reset:

   passwd: all authentication tokens updates successfully