A person is troubleshooting a network issue and needs to see a list of all active TCP network connections on this computer. Which Linux command should be used?

Rationale

netstat provides a list of all active TCP network connections on a Linux computer.

The netstat command is specifically designed to display network connections, routing tables, interface statistics, and other related information. It is commonly used for troubleshooting network issues by allowing users to see active connections and their respective statuses.

A (netstat) CORRECT

This command is utilized to display active network connections, including TCP connections, along with their listening and established states. It provides comprehensive details about each connection, making it an essential tool for network troubleshooting on Linux systems.

B (dig) YOUR ANSWER

The dig command is primarily used for querying DNS (Domain Name System) records. It is not designed to show active TCP connections; instead, it retrieves information regarding domain names and their associated IP addresses or other DNS records. Thus, it does not serve the purpose of listing active network connections.

C (ifconfig) YOUR ANSWER

The ifconfig command is used to configure and display network interface parameters on a Linux system. While it shows information about network interfaces, such as IP addresses and their statuses, it does not provide details about active TCP connections, making it unsuitable for this specific troubleshooting task.

D (nslookup) YOUR ANSWER

Like dig, the nslookup command is used for querying DNS information. It assists in resolving domain names to IP addresses but does not provide any information regarding TCP connections. Therefore, it is not relevant for troubleshooting active network connections on a Linux computer.

Conclusion

To effectively troubleshoot network issues by viewing active TCP connections on a Linux system, the netstat command is the appropriate choice. Other options, such as dig, ifconfig, and nslookup, serve different networking purposes and do not provide the necessary information about active TCP connections. Understanding the specific functionalities of these commands is crucial for effective network management and troubleshooting.

A person is troubleshooting a network issue and needs to see a list of all active TCP network connections on this computer. Which Linux command should be used?

netstat provides a list of all active TCP network connections on a Linux computer.

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