Network Security And Cyber Defense (CNSS)

It provides a holistic view of modern network security including operating system hardeningfirewalls intrusion-detection systems VPNs and Encryption.Physical Security Standards System Security and Security Policies are also included.Before diving into how to protect a network exploring what networks arewould probably be a good idea.For many readers this section will be a review but for some it might be new material. Whether this is a review for you or new information having a thorough understanding of basic networking before attempting to study network security is critical. Also be aware this is just a brief introduction of basic network concepts