Configuring your environment
In this section, we will learn how one would configure the Snort system for their own network or environment. As we mentioned earlier, Snort has several configuration parameters, and the effectiveness and efficiency of the system depend on how well the system is configured for the specific environment where it operates.
In this section, we will discuss some of the key configuration parameters that need to be configured for a specific environment. We will start with the section of the configuration file called Network Variables. This is the section that defines IP and port variables.
HOME_NET
This is an IP variable that represents a list of IP addresses and subnet values that represent the network that is being protected. The default value for this parameter is any. This must be changed to a list of IP addresses and subnets that most accurately represent your network.
This variable is most often referenced in Snort signatures. When a signature...
