What ports does NetBIOS use?
NetBIOS over TCP traditionally uses the following ports:
- nbname: 137/UDP.
- nbname: 137/TCP.
- nbdatagram: 138/UDP.
- nbsession: 139/TCP.
What is my computer’s NetBIOS name?
You can type nbtstat -n (make sure n is in lowercase) at the command prompt to see the NetBIOS name, type, and status in a NetBIOS local name table. The 16th byte will tell you what type of service is running on the computer (e.g. RAS, workstation, etc.).
What is a NetBIOS port?
NetBIOS Name Service UDP NetBIOS name query packets are sent to this port, usually of Windows machines but also of any other system running Samba (SMB), to ask the receiving machine to disclose and return its current set of NetBIOS names. Related Ports: 138, 139, 445.
Is port 135 a NetBIOS?
Name service (NetBIOS-NS) for name registration and resolution via port 137….Workgroup VS Domain.
| Port | Protocol | Service |
|---|---|---|
| 135 | TCP | MS-RPC endpoint mapper |
| 137 | UDP | NetBIOS Name Service |
| 138 | UDP | NetBIOS Datagram Service |
| 139 | TCP | NetBIOS Session Service |
What port is NetBIOS ns?
137
Service Name and Transport Protocol Port Number Registry
| Service Name | Port Number | Description |
|---|---|---|
| netbios-ns | 137 | NETBIOS Name Service |
| netbios-ns | 137 | NETBIOS Name Service |
| trim | 1137 | TRIM Workgroup Service |
| trim | 1137 | TRIM Workgroup Service |
What is a NetBIOS name example?
NetBIOS domain name: Typically, the NetBIOS domain name is the subdomain of the DNS domain name. For example, if the DNS domain name is contoso.com, the NetBIOS domain name is contoso. If the DNS domain name is corp.contoso.com, the NetBIOS domain name is corp.
Is NetBIOS an SMB?
SMB does rely on NetBIOS for communication with devices that do not support direct hosting of SMB over TCP/IP. NetBIOS is completely independent from SMB. It is an API that SMB, and other technologies can use, so NetBIOS has no dependency to SMB.
What is tcp135?
TCP port 135 is the MSRPC endpoint mapper. You can bind to that port on a remote computer, anonymously, and either enumerate all the services (endpoints) available on that computer, or you can request what port a specific service is running on if you know what you’re looking for.
What are the services of NetBIOS over TCP / IP?
NetBIOS over TCP/IP (also called NBT) seems to slowly supersede all the other NetBIOS variants. NBT provides three services: NetBIOS Name Service: /NBNS on UDP (or TCP) port 137 (similar to DNS and also known as WINS on Windows) NetBIOS Datagram Service: /NBDS on UDP port 138, rarely used.
Which is the UDP port for NetBIOS datagram?
NetBIOS Name Service: /NBNS on UDP (or TCP) port 137 (similar to DNS and also known as WINS on Windows) NetBIOS Datagram Service: /NBDS on UDP port 138, rarely used NetBIOS Session Service: /NBSS on TCP port 139
How do I find the NetBIOS name for my computer?
To view the NetBIOS names registered for your computer, use the nbtstat command. See also: Name Resolution. NetBIOS Name Resolution. Then, what is a NetBIOS name example? Every computer that is on the Internet has a Domain Name System (DNS) name. This is also known as the machine name or host name.
What is the version of windows that supports NetBIOS?
Applies to: Windows Server 2022, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012 Displays NetBIOS over TCP/IP (NetBT) protocol statistics, NetBIOS name tables for both the local computer and remote computers, and the NetBIOS name cache.