ALERT

[LAST CHANCE] Meet the Future of the Cloud Today

Windows NT LAN Manager (NTLM)

Definition - What does Windows NT LAN Manager (NTLM) mean?

Windows NT LAN Manager (NTLM) is a security protocol suite for Microsoft Windows NT 4.0. NTLM replaced Windows LAN Manager (LANMAN). NTLM is used for down-level client and server compatibility up to Windows 2000.

NTLM was replaced by Microsoft Kerberos.

Techopedia explains Windows NT LAN Manager (NTLM)

NTLM authenticates clients and servers via a challenge-response method composed of three messages, as follows:
  • Negotiation: Advertises capabilities
  • Challenge: Establishes identity
  • Authentication: Authenticates the client or server
NTLM uses one or more server-stored hashed passwords for authentication. Each password value is a 16-byte LM hash or NT hash. Microsoft does not recommend NTLM for current applications, due to weak encryption.
Share this:

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Tweat cdn.techopedia.com
"Techopedia" on Twitter


'@Techopedia'
Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Resources
The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.