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Can someone demystify computer Ports for me? Please? Blocking, unblocking, opening, allowing, VPNs and their effect, what ports are and what they do, step by step, when you have to interact with them? (lemmy.dbzer0.com)

submitted 7 months ago by [email protected] to c/[email protected]

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It's the one thing when I'm configuring things that makes me wince because I know it will give me the business, and I know it shouldn't, but it does, every time. I have no real idea what I'm doing, what it is, how it works, so of course I'm blindly following instructions like a monkey at a typewriter.

Please guide me into enlightenment.

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[–] [email protected] 1 points 7 months ago

VPN: you give your mail to a dude who puts it in a plain suitcase and goes with it to the VPN company's HQ. Nobody knows whose mail he's got or where it's headed. When that dude gets to the VPN company's office he gives that envelope to another dude who carries it to the destination. If someone's peeping they can only see the dude going from your place to the VPN place or from the VPN place to the destination, not from your place to the destination.