NTLM is a Microsoft network authentication protocol that is based on a Challenge/Response security mechanism. NTLM uses information gathered during an interactive logon process to authenticate users. The information used is a domain name, a user name, and a one-way hash of the user password. NTLM uses encrypted Challenge/Response that does not require the user password to be sent over the network. Rather the system requesting authentication has to perform a calculation on the hash to prove it has access to the secured NTLM credentials. The Microsoft Kerberos Security package has better security than NTLM and is often used in preference.
Talk to Us!
Do you have application delivery questions? Our engineers would love to help!
Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon, MarkLogic, Semaphore and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. See
Trademarks for appropriate markings.