Nmap is a network scanning programme that scans IP packets to identify all connected devices and offer information on the services and operating systems they are running.
It can be used for network audits because it can detect new servers.
It may search subdomains as well as queries in the Domain Name System.
Interaction with the target host is possible via the Nmap scripting engine (NSE).
Host discovery is the process of locating hosts on a network.
Scanning for open ports on target hosts is known as port scanning.
Interrogating network services on remote devices to ascertain the application name and version number is known as version detection.
Nmap searches for hosts and services on a network. When those hosts and services are discovered, the software platform transmits information to them, and they react. Nmap reads and interprets the answer and utilises the data to construct a network map.
Nmap flags are the arguments we specify when calling the programme; for example, -Pn (no ping) prevents nmap from pinging targets. The primary flags of nmap are listed here, along with examples. -p: The -p argument or flag allows you to specify one or more ports or port ranges.
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