Changing the Synology root password on DSM6

Since DSM, SSH login with root is disabled (good thing!), yet to change the root password, you need to follow these steps:

1. SSH to machine as admin user
2. Enter command "sudo -s" and provide your admin password
3. Enter command "synouser --setpw root newpassword"

Becoming root can be done by:

sudo -i

or

sudo su -