What is NetBIOS? Does Windows need its ports 137 and 138 open?
I just wanted to add that for versions of Windows from Windows 2000 and onward, all of the legacy NetBIOS functionality from ports 137, 138 and 139 is by default handled by SMB (Server Message …
Difference between NetBIOS and SMB - Super User
I'm also trying to discover the relationship between netbios-ssn typically running on Port 139 and microsoft-ds running on Port 445. I understand that previously Port 139 was more popular with ol...
Difference between NETBIOS, host name and computer name?
A domain is something you will experience on a work network rather than a home environment generally speaking. imagine: computer name john netbios name is usually also john (but has stricter naming …
When does one require NetBIOS? - Information Security Stack Exchange
Jan 30, 2020 · NetBIOS isn't a protocol, but an API for naming service, and only really used for SMB service enhancements anymore. While there's NetBIOS for TCP, you can actually have it work …
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 …
windows - Find NetBIOS/WINS name of a IP - Super User
Nov 9, 2017 · How can I find the NetBIOS/WINS name of a PC in my LAN In suma: I have the IP of a machine in my LAN I want to get the name of the machine (if it has one)
Is there any way to truly disable NetBIOS/prevent it from being re ...
Oct 10, 2025 · Is there any way to truly disable NetBIOS/prevent it from being re-applied to adapters I've previously disabled it for or new adapters? Does this disablement script have to be run every time on …
Why does our network firewall drop netbios-ns packets?
In our local domain environment, we use Sophos UTM to protect our network. When I check the firewall logs, I can see that a huge number of packets dropped by the firewall are netbios-ns (UDP 137)
Route NetBIOS protocol through internet - Super User
1 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 …
How and why a host can have multiple netbios names?
Apr 2, 2021 · When NetBIOS is run in conjunction with Internet protocols (e.g., NBT), each computer may have multiple names: one or more NetBIOS name service names and one or more Internet host …