How to Use Port Knocking To Secure SSH Service in Linux

The post How to Use Port Knocking To Secure SSH Service in Linux first appeared on Tecmint: Linux Howtos, Tutorials & Guides .
Port Knocking is a nifty technique of controlling access to a port by only allowing legitimate users access to the service running on a server. It works in such a way that...

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Source: Tecmint: Linux Howtos, Tutorials & Guides