What is NetBIOS? Does Windows need its ports 137 and 138 open?
NetBIOS over TCP/IP is specified by RFC 1001 and RFC 1002. The Netbt.sys driver is a kernel -mode component that supports the TDI interface. Services such as workstation and server use the TDI interface directly, while traditional NetBIOS applications have their calls mapped to TDI calls through the Netbios.sys driver. Using TDI to make calls ...
Difference between NETBIOS, host name and computer name?
netbios name is usually also john (but has stricter naming restrictions) on a domain your full computer name may be john.company.local for example. the company.local bit being the name of the domain itself. netbios is old way of resolving names and in many ways is not used, however is kept there in the OS for backwards compatibility.
networking - Difference between NetBIOS and SMB - Super User
3. What is the relationship between SMB and NetBIOS; are they seperate, does one rely upon the other? 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.
When does one require NetBIOS? - Information Security Stack …
Jan 30, 2020 · NetBIOS is needed to join a domain and there are quite a few legacy apps that were designed around it and therefor need NetBIOS to function properly. Here is a short list taken directly from the above blog post link.
windows - Find NetBIOS/WINS name of a IP - Super User
Nov 9, 2017 · How can I find the NetBIOS/WINS name of a PC. You can use nbtstat. Example: nbtstat -A x.x.x.x Syntax... By IP address. NBTSTAT -A IP_address [options] [interval] Key...-A (Adapter status) List the remote machine's name table given its IP address. Source NBTSTAT.exe - Display protocol statistics and current TCP/IP connections using NBT …
Route NetBIOS protocol through internet - Super User
NetBIOS-over-TCP/IP can work over the Internet – mostly: see the part about NBNS below. For file sharing, Windows uses the SMB protocol. Modern versions of Windows use SMB directly over TCP over TCP port 445. Traditionally, SMB was used over NetBIOS Session Service.
Why does our network firewall drop netbios-ns packets?
Any decent firewall should have rules to implicitly deny NetBIOS towards the internet. Not doing that can result in situations like the well known Wannacry attack. Regarding the DNS servers, one of them may have additional roles installed (like client update services) that may use NetBIOS, but it should do that only within your network.
NetBios lookup from command line/powershell in Vista
Feb 15, 2011 · View the netbios table per connection by executing the following on the command line or in powershell. Do mind that -A is case sensitive. -A resolves IP to name, -a resolves name to IP. nbtstat -A xxx.xxx.xxx.xxx
How are (NetBIOS?) names being resolved on my network?
Apr 5, 2024 · Generally NetBIOS is tied to SMBv1 being enabled; if SMBv1 is disabled at OS level, then NetBIOS features are not used at all. This is interesting, as I have SMBv1 disabled in Windows on both machines, (appwiz.cpl > Turn Windows features on or off) , however Wireshark is definitely showing UDP traffic on port 137, marked as 'NBNS'.
windows - Find hostname from NetBIOS name - Super User
Oct 10, 2010 · Check out NBTScan.exe - a utility that will do a NetBIOS scan of your subnet and return the info including IP and MAC addresses: NBTscan is a program for scanning IP networks for NetBIOS name information. It sends NetBIOS status query to each address in supplied range and lists received information in human readable form.