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 …
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 …
Difference between NETBIOS, host name and computer name?
computer name john 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 …
When does one require NetBIOS? - Information Security Stack …
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 without …
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 …
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 …
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)
What useful work a netbios on an ethernet do - Super User
Sep 2, 2021 · Early versions of NetBIOS were designed to work with non-ethernet networks like IBM's Token Ring protocols. NetBIOS addressed LAN protocols using NetBIOS Frames, but in …
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 …
How long can a Windows computer name be? - Super User
Microsoft also notes this in the same article: Note Windows does not permit computer names that exceed 15 characters, and you cannot specify a DNS host name that differs from the …