Comment on Do I really need a firewall for my server?

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elvith@feddit.org ⁨2⁩ ⁨weeks⁩ ago

Instead of thinking with layers, you should use think of Swiss cheese. Each slice of cheese has some holes - think of weaknesses in the defense (or intentional holes as you need a way to connect to the target legitimately). Putting several slices back to back (in random order and orientation) means that the way to penetrate all layers is not a simple straight way, but that you need to work around each layer.

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