Reset User Password
Connect to SSH Terminal — Open any SSH terminal (ex: PuTTY), connect to your Ubuntu/CentOS server, and login as a
Get a one-time login URL for "root" user — Copy-paste the following command into SSH terminal and hit Enter key.
sudo zesle login
This command will generate one-time login URL for you. Simply, copy-paste generated URL into your browser.
Reset password for any user account — Copy-paste the following command into SSH terminal and hit Enter key.
sudo zesle passwd <USER-NAME-HERE> <NEW-PASSWORD-HERE>
This command will reset selected user's password.