Chapter 6. Network Security
In this chapter, we will discuss the following:
- Managing the TCP/IP network
- Using Iptables to configure a firewall
- Blocking spoofed addresses
- Blocking incoming traffic
- Configuring and using the TCP Wrapper
Managing the TCP/IP network
When computers are connected to each other to form a network and exchange information and resources with each other, managing this network information becomes an important task for a system administrator.
Getting ready
Before we start making any changes to the TCP/IP configuration, make sure to create a backup of the Network Manager configuration file, using this command:
Also, create a backup of the ...
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