Configure NetBIOS settings

Policy ID
DNS_Netbios
Scope
Computer Configuration
Supported on
At least Windows Vista
Source
Administrative Templates (.admx) for Windows 11 2026 Update (26H2) (version 1.0)
Category
Network › DNS Client

Description

Specifies if the DNS client will perform name resolution over NetBIOS.

By default, the DNS client will disable NetBIOS name resolution on public networks for security reasons.

To use this policy setting, click Enabled, and then select one of the following options from the drop-down list:

Disable NetBIOS name resolution: Never allow NetBIOS name resolution.

Allow NetBIOS name resolution: Always allow NetBIOS name resolution.

Disable NetBIOS name resolution on public networks: Only allow NetBIOS name resolution on network adapters which are not connected to public networks.

NetBIOS learning mode: Always allow NetBIOS name resolution and use it as a fallback after mDNS/LLMNR queries fail.

If you disable this policy setting, or if you do not configure this policy setting, the DNS client will use locally configured settings.

Options

  • Configure NetBIOS options:
    • Disable NetBIOS name resolution
    • Allow NetBIOS name resolution
    • Disable NetBIOS name resolution on public networks
    • NetBIOS learning mode

Registry

ComputerHKEY_LOCAL_MACHINE
  • EnableNetbiosREG_DWORD

Other policies in the same category

View all policies in this category (27)