What Is Nmap In Cyber Security and what
Are The Uses Of Nmap
What is Nmap In Cyber Security A Complete Lectures from NOTIFI HUB
Nmap is a networking mapping tool that is
widely used for pen-testing it has a main role in scanning. A large number of
networks for the ports scan as well as for this service scan.
So, If go to the official website of Nmap you
can see it is the official website of Nmap site the website is namp.org. So, it
has a lot of options you can go for the range list of IP ranges as well. You
can go for the list of port ranges so, if you want to scan one to one hundred
ports you can go for that you can go for all the options and introductions. you
know the installation guide and everything so even you can go for the download
process for windows, if you're using a windows machine you can see the latest
version and this is for windows installation. I will show you how you can
install it in Linux and in your mas os also.
You can see that Nmap setup.exe file is for
windows obviously so if you click on that setup.exe then if you are using
windows it will automatically download the file to your system.
So, let's directly jump into the kali machine
and see how Nmap works. we can use a fuzzy scan Nmap and first you have to do
it just you have to work the tool name and the space of your target IP address.
so in this case the tool name is Nmap and space your target IP. right now I'm going
to target the Metasploit machine because it is a server running on my local
host. So, you an see this is the Metasploit machine and it has an IP of
192.168.235.134. So, it is on my land so I can actually attack and play with
everything I can.
So, you can see my kali Linux is up and
running far away.
So, you can see the terminal here and you can
just open up your terminal by typing here. you can tap on this icon and it will
open up the terminal. So, this kali and this Metasploit framework are in the same
environment. I can actually attack this Metasploit framework machine.
For example- if I know this IP so
192.168.235.134. I'm going to scan for the first scan with the Nmap and if I
write Nmap space target IP. this gives metasploitable IP 2 3 4 5 6 -------.
You can see by pressing enter I can see all
the results with the Nmap and I can center the report for the IP address.
The host is up something you know this IP
address is alive in the network. you can say there has a port for the local IP
but if you are going to scan for some other domains like Facebook and Google
and some others. So, it will take a longer time like you know one to two min
maximum now this going 977 closed ports.
Nmap (short for Network Mapper) is a free and
open-source security tool that is widely used by network administrators and
cybersecurity professionals to discover and analyze networks and the devices
connected to them. Developed by Gordon Lyon (also known as Fyodor Vaskovich),
Nmap was first released in 1997 and has since become one of the most popular
and powerful network scanning and security tools available.
Nmap is available for all major operating
systems, including Linux, Windows, and macOS, and can be run from the command
line or with a graphical user interface. It is highly configurable, with a wide
range of options and features that allow users to customize the behavior and
output of their scans. Nmap supports a variety of scanning techniques,
including port scanning, OS and service detection, ping sweeping, and vulnerability
detection, making it a versatile and valuable tool for network administrators
and security professionals.
One of the key features of Nmap is its ability
to detect the operating systems and services running on the devices on a
network. This is accomplished by sending specially crafted packets to the
target devices and analyzing the responses to determine the operating system
and services that are running on each device. Nmap can identify a wide range of
operating systems and services, including popular platforms like Windows,
Linux, and macOS, as well as many less common or obsolete systems.
In addition to OS and service detection, Nmap
can also be used for port scanning, which involves systematically scanning a
range of IP addresses and ports to determine which ports are open and listening
on each device. This can be useful for identifying services and applications
running on a network, as well as for identifying potential vulnerabilities and
security risks. Nmap includes a number of different port scanning techniques,
such as SYN scan, ACK scan, and FIN scan, each of which has its own advantages
and disadvantages.
Another useful feature of Nmap is its ability
to perform ping sweeps, which involve sending ICMP echo request (ping) packets
to a range of IP addresses to determine which hosts are active and responding.
This can be useful for quickly identifying the devices on a network and determining
which ones are online and accessible. Nmap can also perform more advanced
network discovery techniques, such as ARP scanning and DNS resolution, to
provide a more detailed view of the network and its devices.
In addition to its core scanning and discovery
capabilities, Nmap also includes a range of features for vulnerability
detection and exploitation. Nmap can be configured to run a variety of
different NSE (Nmap Scripting Engine) scripts, which are small programs that
can be used to automate common tasks, such as scanning for vulnerabilities or
extracting sensitive information from the target devices. Nmap also includes a
number of built-in scripts that can be used to detect common vulnerabilities,
such as weak SSH credentials, unpatched software, or insecure protocols.
In conclusion, Nmap is a powerful and
versatile security tool that is widely used by network administrators and
cybersecurity professionals to discover and analyze networks and the devices
connected to them. With its ability to detect operating systems and services,
perform port scanning, and run vulnerability detection scripts, Nmap is an
essential tool for anyone looking to improve the security of their networks and
systems.
Conclusion
Nmap (Network Mapper) is one of the most powerful and widely used tools in cyber security for network discovery, vulnerability scanning, and security auditing. Its ability to identify hosts, open ports, services, and operating systems makes it an essential utility for ethical hackers, penetration testers, and system administrators. While it can be misused by attackers, its primary role is to strengthen security by helping organizations understand and protect their network infrastructure. In short, mastering Nmap provides a strong foundation for anyone pursuing a career in cyber security, as it
0 Comments