Nmap

Nmap 6.2

Free
This program can perform network inventory or list a service history
4.2  (36 votes)
3.3
7.50 (See all)

Nmap can perform network inventory, list a service history, identify firewall types and pocket filers or detect the uptime of the system and the OS. With the extremely flexible Nmap Script Engine (NSE), you can write your own scripts to customize your scanning processes.

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