How to scan open ports on a server with Netstat?

By default, the Linux operating system manages 65536 ports. On your Linux platform it is best to disable the services (or ports) that you don’t really need to limit possible attacks. To see the ports and active listening on your server we will use the netstat command. The netstat command is a tool that allows to kno*w the active TCP c*onnections on a machine and view all TCP and UDP ports on a computer.

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