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How to Obscure Network Ports with a Port Knocking Sequence on Debian 10

Thursday Oct 31st 2019 by Karl Wakim

Port knocking is a method of dynamically opening network ports by "knocking" (i.e. connecting) on a predefined sequence of ports.

Port knocking is a method of dynamically opening network ports by "knocking" (i.e. connecting) on a predefined sequence of ports. This is especially useful for obscuring an open network port from port scanning since the port in question will be closed unless the port knocking sequence is executed.

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