Here is the result:įor the listener command, we can add the -v flag, which will make Netcat more verbose. Now, to demonstrate how that works with a real example, I have launched two terminals and typed the two commands we just learned to simulate a connection. The provided IP address should be that of the listening node, and the port number is the same one that we specified earlier with the -p flag. To do so, you can run the following command: nc We can now go to the second machine and initiate a connection with the listening node. Once you have run the above command, the node will open the specified port and wait for incoming connections. You have to specify a number after the -p flag to indicate which port will Netcat be listening on. The -l flag indicates that you are running Netcat in the listening mode. In order to make a network connection between two nodes, one of them will need to be listening on a specific port, while the other initiates the connection to that port.Īt the first node, you can activate the listening port by running the following command. Using Netcat to create a network connection So, in order to avoid boring you with a lengthy post, we are going to cover here the basic uses of Netcat in Pentesting and Ethical Hacking, as that is what we are here for, right?Īt its most basic level, Netcat is just a tool to interact (read/write) with a connection between two nodes over a network. To try to explain the different applications of this utility will take an entire book, not just an article. Netcat is a command-line tool for establishing TCP and UDP network connections, and reading/writing to them.
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