Nmap- A powerful tool for Network security Auditing
Nmap is a security scanner, originally written by Gordon Lyon,
used to discover hosts and services on a computer network, thus building
a "map" of the network. Nmap is very powerful network mapping tool which is used by most of the security researcher, experts or hackers.Nmap ("Network Mapper") is a free and open source utility 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 up-time. Nmap uses raw IP packets in novel ways to determine
what hosts are available on the network, what services (application
name and version) those hosts are offering, what operating systems
(and OS versions) they are running, what type of packet
filters/firewalls are in use, and dozens of other characteristics.
It was basically design to work in large scale network but it also work fine with single host. This tool is platform independence since it works on all types of operating System like Linux, Window and Mac-OS and also any other distribution based on Unix based OS. Nmap is available in typically command line and Advanced GUI based result viewer named Zenmap.
Following are the some Features of Nmap
1. Flexible: It used and supports lots of advance techniques for mapping out the networks filled with IP filters, firewalls, routers, and other obstacles. It includes port (TCP and UDP) along with OS identification, version detection ping sweep and more.
2. Powerful: Nmap is literally designed and used to scan thousands of machines.
3. Portable: Most of the Operating system like Linux, Windows, Mac-OS, FreeBSD, OpenBSD and various OS exists in the computer world supports this tool.
4. Easy: Nmap provides lots of advance features to professional peoples but it is also used by the common people to find out the network mapping of a machine or any organization and also can detect the service run on any port. simply run the command
nmap <targethost>
this is the basic nmap scan we can simply find out the lots of information about host by using aggressive scan command as
nmap -A targethost
5. Free: Since it is a open source tool( license) it is free and open to use and explore network by scanning the network which helps hackers and researcher by providing the open port and service run on that port.
Some Of the Useful command and flags used to find out the service are
nmap -O targethost <to find the OS run on the target host>
nmap -A targethost<to scan the host aggressively>
if we need to know every steps what is happening during scan we can simply used the following command which shows debugging process
nmap -d5 targethost
the result will be look like
to save the scan results in various format simply use the following commands
nmap -oX filename will save result in xml format
nmap -OX filename targethost
To save the result in customize form simply run the command as
nmap -oA filename with extension targethost
To download the Nmap click here
And enjoy the tool don't misuse this tool use safely for good work.
Reference
https://nmap.org/
It was basically design to work in large scale network but it also work fine with single host. This tool is platform independence since it works on all types of operating System like Linux, Window and Mac-OS and also any other distribution based on Unix based OS. Nmap is available in typically command line and Advanced GUI based result viewer named Zenmap.
Following are the some Features of Nmap
1. Flexible: It used and supports lots of advance techniques for mapping out the networks filled with IP filters, firewalls, routers, and other obstacles. It includes port (TCP and UDP) along with OS identification, version detection ping sweep and more.
2. Powerful: Nmap is literally designed and used to scan thousands of machines.
3. Portable: Most of the Operating system like Linux, Windows, Mac-OS, FreeBSD, OpenBSD and various OS exists in the computer world supports this tool.
4. Easy: Nmap provides lots of advance features to professional peoples but it is also used by the common people to find out the network mapping of a machine or any organization and also can detect the service run on any port. simply run the command
nmap <targethost>
this is the basic nmap scan we can simply find out the lots of information about host by using aggressive scan command as
nmap -A targethost
5. Free: Since it is a open source tool( license) it is free and open to use and explore network by scanning the network which helps hackers and researcher by providing the open port and service run on that port.
Some Of the Useful command and flags used to find out the service are
nmap -O targethost <to find the OS run on the target host>
nmap -A targethost<to scan the host aggressively>
if we need to know every steps what is happening during scan we can simply used the following command which shows debugging process
nmap -d5 targethost
the result will be look like
to save the scan results in various format simply use the following commands
nmap -oX filename will save result in xml format
nmap -OX filename targethost
To save the result in customize form simply run the command as
nmap -oA filename with extension targethost
To download the Nmap click here
And enjoy the tool don't misuse this tool use safely for good work.
Reference
https://nmap.org/
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