You made some good improvements. What style are your in-text citations?
The document does not look like a memo to Faster Computing. This is not an academic paper, it is supposed to be a memo to a prospective client to answer their specific questions. There are still some areas that need to be addressed to improve the score. Additional specifics about browsers and detail on SAMBA would help.
1.4.3: Write concise and logical sentences in standard academic English that clarify relationships among concepts and ideas.:
Some issues include:
ubuntu not capitalized
Yellowdog Updater, Modified (YUM)
SSH meaning not defined (what does SSH mean).
