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How To Hide Your Ports With Port Knocking

iptables is a utility program that allows system administrators to configure the tables provided by the Linux kernel firewall.

Two systems that are used:

Server 172.31.75.10 (Ubuntu)

Client: 172.31.72.153 (Kali Linux)

Result of server scan before rules in firewall are set
All chains with complete rules of the firewall
Successful connection to the closed ssh port

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