What command would you use to display active network connections in Linux?

The command that displays active network connections in Linux is netstat. This utility provides a detailed snapshot of the current network connections, including both incoming and outgoing connections, along with their associated IP addresses and port numbers. It can show various statistics like network protocol usage and can help diagnose network issues by providing insight into what connections are currently established.

In addition to showing active connections, netstat can display routing tables, interface statistics, and various network-related information. This functionality makes it a fundamental tool for network management and troubleshooting in Linux environments.

The other commands listed serve different purposes: ping is used to check connectivity to a remote host bysending ICMP echo requests, ifconfig is used to configure and display network interfaces, and traceroute helps trace the path packets take to reach a specific network destination. While they are all valuable networking tools in Linux, they do not provide the same level of detail about active network connections that netstat does.