Which command provides information about all network connections and listening ports?

The command that provides information about all network connections and listening ports is Netstat. This utility displays active connections to and from the computer, along with their current state. It reveals both TCP and UDP ports, allowing users to monitor network performance and diagnose issues related to connectivity. By using Netstat, one can assess which applications are using specific ports and whether connections are established, listening, or in a closed state, which is essential for troubleshooting and network management tasks.

In contrast, IFconfig is primarily used for configuring network interfaces and viewing their settings rather than monitoring connections. Telnet is a protocol and client used to connect to remote machines, but it does not provide an overview of open connections and listening ports on the local system. Trace, often referring to tools like Traceroute, is used to track the path packets take to reach a destination, but it doesn’t give information directly about local connections. Thus, Netstat stands out as the best choice for examining network connection details.