An API for older windows systems that runs over TCP/IP to allow network communication in a LAN. Used to troubleshooting naming issues in networks.
udp/137,udp/138used for name services (nbname)tcp/139used for session service (nbsession) NetBT is the forward compatibility of NetBIOS on modern TCP/IP networks
Commands
nbtstat -n
Finding current device’s netbios name
nbtstat -A <remoteIP>
Finding a remote IP’s netbios name
nbtstat -c
All names NetBIOS has in its cache