Unix or Linux based systems

Unix or Linux based systems

Description
Question A
What are some of the common security weaknesses inherent in Unix or Linux based systems and what techniques can be used to harden these systems against an attack?
Question B
What distributions of Linux are known to be more secure after a default installation and should these versions be used more often in corporations?

Solution preview for the order on Unix or Linux based systems

Unix or Linux based systems 
APA

362 words