Network Security, Firewalls, and VPNs, 3rd Edition

CHAPTER SUMMARY

Network security implementation relies on a thorough understanding of your organization, its goals, its risks, and the technologies employed within your IT infrastructure. Before you can properly deploy network security, you must first design it. Most network security designs include layers of defense, as well as sufficient capacity for growth.

Network security includes an evaluation of the protocols and methods your organization uses. If the current design is insufficient, replace it with a design that addresses productivity and security. You need to assess the addressing schemes in use—whether public or private, static or dynamic—in light of how each improves or detracts from security.

Other important components of network ...