Knowing how to check ports on a Linux system is a fundamental skill for system administrators and users alike. Ports are the endpoints of network connections, and they play a crucial role in allowing applications to communicate with each other. By understanding how to check ports, you can troubleshoot network issues, identify potential security vulnerabilities, and optimize your system’s performance.
There are several methods for checking ports on a Linux system. One common approach is to use the netstat command. This command displays a list of all active network connections, including the local and remote ports that are being used. Another useful tool is the lsof command, which lists all open files and network connections, including the ports that are being used by each process.
