---
id: 3757
title: "Disable LLMNR via GPO (Together with NBT-NS and MDNS)"
source_domain: projectblack.io
source_url: "https://projectblack.io/blog/disable-llmnr-gpo-netbios-mdns/"
published_at: "2024-06-15T11:24:18Z"
tags: ["ai-security", "active-directory", "credential-theft", "gpo", "llmnr", "nbt-ns", "mdns"]
phying_url: "https://phying.com/item/3757"
lang: en
---

# Disable LLMNR via GPO (Together with NBT-NS and MDNS)

## Summary

How to disable LLMNR, NBT-NS and MDNS via GPO to stop attackers capturing password hashes through name-resolution fallback, with an importable GPO and cautions about MDNS side effects.

## Intelligence Metadata

- **Sources:** projectblack.io
- **Published:** 2024-06-15T11:24:18Z
- **Original:** https://projectblack.io/blog/disable-llmnr-gpo-netbios-mdns/
- **Phying News:** https://phying.com/item/3757