To easily change the Elastix or Issabel admin password and mySQL root password via SSH, run the following command:

Elastix

Issabel

 

Another way to change root password in MySQL

In order to change MySQL root password first stop service

Start MySQL in safe mode

Login

Change password

Restart service

Finally check the new password:

 

 

Source: https://www.elastix.org/community/threads/mysql-password.98656