I was trying to access the file structure on the VMWARE Machine (remotely). But the login always fails.
I am using the following credentials:

user: root
Pass: password

i did however bumped into the following para on Deki installation site:
Warning: Deki Wiki only allows local access root access; however, if you're deploying in a production or mission critical environment these credentials should be modified. Contact MindTouch for support if you have questions about how to do this.