Checking your ports is a crucial step in network troubleshooting and maintaining a secure network. Ports are the endpoints of communication channels on a computer, and they are used by applications to send and receive data. By checking your ports, you can identify which ports are open and which are closed, and you can also determine which applications are using which ports.
There are a number of different ways to check your ports. One common method is to use a port scanner. A port scanner is a software program that sends a series of probes to a range of ports on a computer and reports back which ports are open. Another method for checking your ports is to use the netstat command. The netstat command is a command-line tool that displays information about the network connections on a computer, including the ports that are being used.