Probably, you do not need to say that sometimes the user needs to use special ports in order to gain access, for example, to online games. Sometimes this is required by specialized Internet clients or complex specific programs. Let's try to figure out how to check if the ports in the system are open. As it turns out, this is not so difficult.
How to check if ports are open? Command line
So, let's start, perhaps, with the simplest that is only available to the user. As a rule, in most cases, the solution to the question of how to check whether ports are open on the system comes down to using the command line, the functional set of which is quite diverse and allows not only viewing specific information, but also fixing many errors or malfunctions.
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