Basics NetBIOS provides us Commutation in LAN(local area network). generally, NetBIOS work on port- 137(UDP), 138(UDP), 139(TCP) I think only windows have NetBIOS services. All the higher version from Windows 2000, have the NetBIOS service. NetBIOS can show you a lot of information about a Windows machine. and always remember that NetBIOS isn’t a protocol, […]

Sep 07, 2017 · NetBIOS is a service which allows communication between applications such as a printer or other computer in Ethernet or token ring network via NetBIOS name. NetBIOS name is 16 digits long character assign to a computer in the workgroup by WINS for name resolution of an IP address into NETBIOS name. NetBIOS Name Service (NBNS) This service is often called WINS on Windows systems. The NetBIOS Name Service is part of the NetBIOS-over-TCP protocol suite, see the NetBIOS page for further information. NBNS serves much the same purpose as DNS does: translate human-readable names to IP addresses (e.g. www.wireshark.org to 65.208.228.223). Dec 04, 2017 · NetBIOS Over TCP/IP Protocol. NetBIOS over TCP/IP or NBT-NS (UDP/137,138;TCP/139) is a broadcast protocol being a predecessor of LLMNR and used in the local network to publish and search for resources. By default, NetBIOS over TCP/IP support is enabled for all interfaces in all Windows versions. Mar 11, 2003 · NetBIOS alone should not give you many headaches. Unfortunately, when NetBIOS problems occur they can be difficult to detect. Understanding how NetBIOS works is the key. Apr 19, 2018 · It extends the reach of NetBIOS client and server programs to the wide area network (WAN). It also provides interoperability with various other operating systems. The Workstation service, Server service, Browser service, Messenger service, and Net Logon service are all direct NetBT clients. TCP 139: NetBIOS session service Since external users -- or hackers -- don't need access to shared internal folders, you should turn off this protocol. To disable NetBIOS over TCP/IP, follow these

The NetBIOS datagram service. The NetBIOS session service. The NetBIOS name service provides a mechanism for registering and releasing NetBIOS names. NetBIOS names are end-point addresses; each name represents an application or service running on a node on the network. The NetBIOS datagram service provides connectionless, unreliable transport

TCP 139: NetBIOS session service In actual fact, a workstation that tries to connect to a file share might start by trying using those ports. Windows will automatically fall back to using SMB, which is on port TCP 445. NetBIOS is a protocol used for File and Print Sharing under all current versions of Windows. While this in itself is not a problem, the way that the protocol is implemented can be. There are a number of vulnerabilities associated with leaving this port open. NetBios services: NETBIOS Name Service (TCP/UDP: 137) NETBIOS Datagram Service (TCP/UDP

Locate TCP/IP NetBIOS Helper service observe his current status and open to make changes. From General tab you can Start/Stop and change the Startup type of TCP/IP NetBIOS Helper service. To finish press ok button and close Services window.

Aug 28, 2014 · this means NetBIOS is enabled. Run this script on the server to disable it completely: net stop "TCP/IP NetBIOS Helper" net stop netbt . sc config netbt start= disabled.