NetBIOS stands for Network Basic Input / Output System and is a set of rules defining services for PC based networks originally created by IBM. Microsoft operating systems such as NT, Windows for Workgroups and Windows 95 communicate usi ng NetBIOS names�a NetBIOS name can be upto 15 characters in length (with a 16^th set aside to denote which service or command was used when the name was referenced.) The services provided by NetBIOS run over TCP/IP and the rules for this and Ne tBIOS name resolution are defined in RFC 1001 and RFC 1002.

NT comes with a utility NBTSTAT which is used for viewing NetBIOS information. This tool can be used for snooping information about remote machines�

Run : nbtstat �a \\www.host.com