nmap: nmap (network exploration tool and security scanner)
nmap:
nmap: Nmap is a utility for network exploration or security auditing. It
nmap: supports ping scanning (determine which hosts are up), many port
nmap: scanning techniques, version detection (determine service protocols
nmap: and application versions listening behind ports), and TCP/IP
nmap: fingerprinting (remote host OS or device identification). Nmap also
nmap: offers flexible target and port specification, decoy/stealth scanning,
nmap: sunRPC scanning, and more. Most Unix and Windows platforms are
nmap: supported in both GUI and commandline modes. Several popular handheld
nmap: devices are also supported, including the Sharp Zaurus and the iPAQ.