When is ntlm used

Thank you! What is this group policy setting called? If you select any of the deny options in gp, incoming NTLM traffic to the domain will be restricted. Why doesn't Kerberos work? Will it work in the future? There version of the NTLM determines different types of math used. The hash itself is never transmitted, though NTLMv1 is weak enough to brute force over night on specialized hardware crack. As names don't change much, they are mostly registered automatically.

Change too much for automatic stuff to go well. A computer object would have the right to register its own SPN, or the computer object owner, or a domain admin — markgamache. Why do you mention names SPNs here? SPNs are the cornerstone of Kerberos. Name Name is required.

Email Email address is required. Close Submit. Featured Products. Need more help? Product issues. The client sends the user name to the server in plaintext. The server generates a byte random number, called a challenge or nonce , and sends it to the client. The client encrypts this challenge with the hash of the user's password and returns the result to the server. This is called the response. The domain controller uses the user name to retrieve the hash of the user's password from the Security Account Manager database.

It uses this password hash to encrypt the challenge. The domain controller compares the encrypted challenge it computed in step 6 to the response computed by the client in step 4. If they are identical, authentication is successful.

Reducing the usage of the NTLM protocol in an IT environment requires both the knowledge of deployed application requirements on NTLM and the strategies and steps necessary to configure computing environments to use other protocols.

In a domain, Kerberos is the default authentication protocol. Yes No Any additional feedback? Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy.