The only way to keep a computer 100 percent safe from attacks is to never turn it on. When you start using it, especially when it is connected to a network, the risk of attacks rises significantly. Defense-in-depth refers to the practice of using multiple layers of security to protect systems and networks. Digital security methods play a large role in network security. This chapter covers several digital security methods used on networks, with a strong focus on firewalls.
Exam 220-801 objectives in this chapter:
2.6 Install, configure, and deploy a SOHO wireless/wired router using appropriate settings.
Port forwarding, port triggering
2.9 Compare and contrast network devices and their functions ...