Which command would you use to check network connections in Linux?

Using the command netstat allows users to check network connections in Linux effectively. It provides a comprehensive overview of the network interfaces and the open connections on the system. This includes both incoming and outgoing network connections, their status, the protocol being used (TCP or UDP), and the local and remote addresses involved in these connections.

This command is particularly useful for diagnosing network issues, monitoring the network's performance, and understanding the traffic flow on a system. Users can see which applications are using network resources and can identify any unusual or unauthorized connections that may need further investigation.

While other commands listed serve important network-related functions, they do not specifically provide the same level of detail about active connections. For example, ping is used to test connectivity with another host, traceroute is employed to determine the path packets take to a destination, and ifconfig is primarily used for configuring network interfaces rather than monitoring their connections.