How do I open up ports?

Hi! Does it matter what ports I open? I need to find out how to open the following ports:

7777 default gameport (gameport)

7778 used by game engine as well (gameport + 1)

7779 tost xsupport (off by default) (gameport + 2)

7780 TOST TOP2Support (gameport + 3)

7782 WebAdmin (gameport + 5)

I need very detailed instructions!

Thanks!

 

 

 

 

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