Netcat Tutorials for Beginner

In the field of hacking most utilized and powerful tool use by attack is popularly known as “Netcat” which is a computer networking function for analyzing from and writing to network connections using TCP or UDP. Netcat is designed to be a dependable back-end that can be used directly or easily driven by other programs and scripts. At the same time, it is a feature-rich network debugging and investigation tool; since it can create almost any kind of connection its user could need and has a number of built-in capabilities.

Netcat is at the same time very easy and multipurpose, it’s like trying to explain everything you can do with your Swiss Army knife.

For examples:-

• Banner garbing
• Bind shell (backdoor)
• Chatting
• File uploading and downloading
• Port scanning
• Port knocking
• Port forwarding
• Show webserver HTTP file contents

There are so many options inside netcat to enhance it function and effect when you will type nc –h in terminal of kali Linux. Before getting inside its working details you must aware of that here we had use two system one as attacker another as target system. 

Let’s begin

Port Knocking 

Open the terminal of your kali Linux and type following command which contains target’s IP and target port number.

So when the given command will be executed it will tell about hidden running service through knocking the port, from given below image you can observe that port 2222 is open for SSH.

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