I just finished installing cPanel in a CentOS VM in Google Cloud Engine and cPanel said the default username is root and the default password is the server's root password.
2016-01-26 12:02:52 958 ( INFO): 3. Enter the word root in the Username text box
2016-01-26 12:02:52 958 ( INFO):
2016-01-26 12:02:52 958 ( INFO): 4. Enter your root password in the Password text box
2016-01-26 12:02:52 958 ( INFO):
2016-01-26 12:02:52 958 ( INFO): 5. Click the Login button
How do I get the server's root password?
Figured it out. The VM's in cloud engine don't come with a root password setup by default so you'll first need to change the password using
sudo passwd
If you do everything correctly, it should do something like this:
user@server[~]# sudo passwd
Changing password for user root.
New password:
Retype new password:
passwd: all authentication tokens updated successfully.