What command is commonly used to view the TCP and UDP port status?

The command "netstat -tuln" is a widely used utility for displaying the status of TCP and UDP ports on a system. When executed, the command provides a comprehensive overview of active network connections, including listening ports, and the respective protocol (-t for TCP, -u for UDP). The options -l indicates listening services, and -n shows numerical addresses instead of attempting to resolve hostnames, allowing for quicker output and clarity regarding the actual ports in use.

This command is particularly valuable for troubleshooting and monitoring network services, as it helps administrators determine which services are actively listening for connections on the machine and what ports they are using. By offering insights into both TCP and UDP traffic, "netstat -tuln" becomes an essential tool in a network administrator's toolkit.

The other options, while useful in their contexts, do not focus specifically on providing a clear view of TCP and UDP port status in the same comprehensible format as netstat. For example, "tcpdump" is primarily used for capturing and analyzing network packets rather than displaying port status, "lsof" lists open files and their associated processes which might include ports but isn't specifically tailored to show a simple status of TCP and