Situation1- Know the only username but don’t know the password Suppose you are willing to obtain correct login credential for any account such FTP, SSH or HTTP when you having following situations:

On executing the above command it will try to crack the password for anonymous login account as shown in the given below image. So with the help of the following command, we will try to find out possible FTP login credential. We have defined this attack as basic because at this phase we only know that port 21 is enabled for FTP service on the victim’s machine. Ncrack is a very versatile tool, it has modules to test most of the popular forms of network authentication. This shows us all the different options the tool provides us. Ncrack can be started by typing “ncrack” in the terminal. It also has a unique feature to attack multiple targets at once, which is not seen very often in such tools. The tool is a part of the Kali Linux arsenal and comes pre-installed with the package. Ncrack is a network authentication tool, it helps pentesters find out how vulnerable the credentials protecting a network’s access are. It was designed to help the companies in securing their networks by analysis all their hosts and networking devices for weak passwords. Security professionals depend on Ncrack while auditing their clients. The tool is very simple, yet robust in what it offers a penetration tester. In this article, we will be exploring the topic of network authentication using Ncrack.

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