NMAP

Nmap (Network Mapper) is a famous open-source discovery and security auditing tool. It is available in Kali Linux and is widely used by security professionals and system administrators for network scanning, port scanning, service detection, and vulnerability assessment.

How it works:

Nmap sends packets to target hosts to discover and map the network topology. It sends different types of packets to the target hosts. It analyzes the responses to determine which ports are open, which services are running, and other details about the target hosts.

How to install: Nmap is usually pre-installed in Kali Linux. If Nmap is not already installed, you can add it by executing the following command:

What is Nmap used for:

  • Network mapping: Nmap can be used to map a network and discover hosts on a network.
  • Port scanning: Nmap is commonly used to identify open ports on a host.
  • Service detection: Nmap can detect services running on the ports and provide information about the services.
  • Vulnerability assessment: Nmap can identify potential vulnerabilities on a network or system by analyzing the services running and version information.