- Nmap(Network Mapper) is a free and open source (licence) utility for network discovery and security auditing.
- Many system and network administration also find it for task such as network inventery managing service upgrade schedules and monitoring host or service up up to time.
- Nmap uses raw IP packets in determined what hosts are available on the network.
- What services(application name and version) those hosts are offering what operating system(and OS version) they are running.
- What type IP packets filters fire walls are in use and dozens of other characteristics.
- It was designed to rapidly scan large network,works fine against single host.
- Nmap runs an all major computer, operating system and official binary packages are available for Linux,windows and Mas OS.X.
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