In an ever-evolving world of technology, security and data privacy are of paramount importance. This chapter will address some of the basic concepts of IT infrastructure security. In order to secure a system, the key task is to identify and classify the information assets and define a security framework.
This chapter will cover what security means to network and system administrators. It will also explore how to build a secure network, incorporating the security principles defined in your framework.
Let's get started with network infrastructure security. We will cover the following topics in this chapter:
- Why security?
- Building blocks of information security
- Computer security
- Network security
- Internet security
- Security issues, threats, and attacks
