Harden and monitor network services to protect your system against various risks. Turning off unused services helps limit exposure.

Red Hat Enterprise Linux supports many different types of network servers. Their network services can expose the system to various kinds of attacks. These include denial-of-service (DoS), distributed denial-of-service (DDoS), script vulnerability, and buffer overflow attacks.

To increase system security against attacks, it is crucial to monitor the active network services you use. For example, when a network service runs on a machine, its daemon listens for connections on network ports. This can reduce security. To limit network exposure to attacks, turn off all unused services, ports, and networking capabilities.