What is the most common use of a TCP Utility program like netstat?

The most common use of a TCP utility program like netstat is to monitor and display active connections. Netstat provides valuable information about the network status on a host, including current TCP and UDP connections, listening ports, and network interface statistics. This enables administrators and security professionals to analyze network traffic and determine which applications are communicating over the network.

By using netstat, users can identify issues such as unauthorized connections, potential security breaches, and network performance bottlenecks. The ability to see active connections in real-time allows for better monitoring of systems and enhances overall network security efforts.