title: Disabling NTLM by Default description: A step-by-step guide on disabling NTLM for better security. tags: linux,devops,cloud,aws Introduction to NTLM NTLM (NT LAN Manager) is a suite of security protocols used for authentication and session security in Microsoft environments. While it provides a certain level of security, NTLM has been largely superseded by more modern and secure authentication protocols like Kerberos. Disabling NTLM can significantly improve the security posture of your network by reducing the attack surface. Problem Context NTLM is an older protocol with known vulnerabilities, making it a target for attackers. By default, many systems still have NTLM enabled, which can lead to security risks if not properly managed. Disabling NTLM by default is a recommended best practice to enhance security and comply with modern security standards. Step-by-Step Guide to Disabling NTLM Disabling NTLM involves configuring both client and server settings.…