POS 420 Week 2 DQs

What is the relationship between Linux and UNIX? How has their relationship evolved over time? What similarities and differences are seen between them?

How can file permissions be used to establish system security? What effect does this have on the UNIX or Linux operating system?

Roaschke, Cook, Parliman, and Sherrill (2008) describe how to simulate parallelism in UNIX file processing by using multiprocessing in a new multithreading approach. What are some of the advantages and disadvantages of their proposed approach? How could this approach be applied to operations in a business environment?

In this weeks article by Liu, Wang, and Zhu (2008), UNIX and Windows are co-located within a heterogeneous system arrangement. How is lightweight directory access protocol (LDAP) used as a methodology to handle the different file mechanisms in this arrangement? Do you agree with the use of this approach? Explain why or why not. What other solutions could be used in this situation?