That's it Nmap is a free and open source security scanner which useste for controlling the network and its security.
Use
- Network inventory
- managing schedules of the services offered
- monitoring slot
- or service uptime
Mode
It uses a series of IP packets that are sent and then collected information from those.
Nmap determines which machinemata are available at network, what services or hosts they offer, what operating systems are in development, what types firewall is in use and much more.
Download Nmap
https://nmap.org/download.html
