Chapter 10
Implementing and Configuring Firewalls
This chapter covers the following topics:
The exam objective covered in this chapter is as follows:
Objective 2.3: Given a scenario, implement and configure firewalls
Linux is relatively secure right at the outset, unlike a lot of other options in the operating system world. This doesn’t mean that you don’t need to take steps to further secure your Linux systems and services—you definitely do, and one of the firewall offerings such as iptables or firewalld is perfect for that purpose.
It used to be that iptables was the standard command used to manage firewall rules, but there was nothing simple or easy about ...
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