Tuesday, 20 February 2018


NMAP and ZenMAP are useful tools for the scanning phase of Ethical Hacking in Kali Linux. NMAP and ZenMAP are practically the same tool, however NMAP uses command line while ZenMAP has a GUI.

NMAP is a free utility tool for network discovery and security auditing. Many systems and network administrators also find it useful for tasks such as network inventory, managing service upgrade schedules, and monitoring host or service uptime.

NMAP uses raw IP packets in novel ways to determine which hosts are available on the network, what services (application name and version) those hosts are offering, which operating systems (and OS versions) they are running, what type of packet filters/firewalls are in use, etc.

Now, let’s go step by step and learn how to use NMAP and ZenMAP.

Step 1 − To open, go to Applications → 01-Information Gathering → nmap or zenmap.
Step 2 − The next step is to detect the OS type/version of the target host. Based on the help indicated by NMAP, the parameter of OS type/version detection is variable “-O”. For more information, use this link: https://nmap.org/book/man-os-detection.html
The command that we will use is −
Nmap -O you  have to put the traget ip address.)

Step 3 − Next, open the TCP and UDP ports. To scan all the TCP ports based on NMAP, use the following command −
Nmap -p 1-65535 -T4

Where the parameter “–p” indicates all the TCP ports that have to be scanned. In this case, we are scanning all the ports and “-T4” is the speed of scanning at which NMAP has to run.

So nmap is the very best to all I can't discribe here do read the book and practice. If you all face any kind of problem do comment or mail me
At shivamsingh75@yahoo.in.

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