Most of our modern Unix/BSD templates come with "su" or "sudo" models for security reasons. That means the password provided in the control panel are for the specific username dependant on the Linux distribution. For CentOS Linux based systems, the username to use with the password provided is "centos", for Ubuntu Linux based systems it is "ubuntu" and for Debian Linux systems it is "Debian". After gaining access you can activate the root access by issuing the command: sudo passwd and set a new password for "root". To enable remote root-logins you must adapt the SSH configuration or use SSH-keys. On Windows you should always use "Administrator" and on FreeBSD "root" will work out of the box.