Nmap ("Network Mapper") is a utility for network discovery and security
auditing. Many systems and network administrators also find it useful for tasks
such as network inventory, managing service upgrade schedules, and monitoring
host or service uptime. Nmap uses raw IP packets in novel ways to determine what
hosts are available on the network, what services (application name and version)
those hosts are offering, what operating systems (and OS versions) they are
running, what type of packet filters/firewalls are in use, and dozens of other
characteristics. It was designed to rapidly scan large networks, but works fine
against single hosts. |