Quick Answer: How Do I Force NTLM Authentication?

What is the difference between basic authentication and NTLM?

NTLM — Uses an encrypted challenge/response that includes a hash of the password.

Basic — Prompts the user for a username and password to authenticate the user against the Windows Active Directory..

How do I know if Kerberos authentication is enabled?

Kerberos is most definately running if its a deploy Active Directory Domain Controller. Assuming you’re auditing logon events, check your security event log and look for 540 events. They will tell you whether a specific authentication was done with Kerberos or NTLM.

How do I enable Kerberos authentication?

Set Up Kerberos AuthenticationCreate a server profile. The server profile identifies the external authentication service and instructs the firewall on how to connect to that authentication service and access the authentication credentials for your users. Select. … ( Optional. ) Create an authentication profile. … Commit the configuration. Click. Commit.

How do I switch from NTLM to Kerberos?

Choose the web application you wish to configure from the drop-down in the top right corner (this includes the Central Administration web application) Click on ‘Default’ Set the authentication to Negotiate (Kerberos)

How do I enable NTLM authentication?

Click down to “Local Computer Policy -> Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options. Find the policy “Network Security: LAN Manager authentication level”. Right click on this policy and choose “Properties”. Choose “Send NTLMv2 response only/refuse LM & NTLM”.

How do I remove NTLM authentication?

Open the Group Policy Management Editor (gpmc. msc) and edit the Default Domain Policy. Go to the GPO section Computer Configurations -> Policies -> Windows Settings -> Security Settings -> Local Policies -> Security Options and find the policy Network Security: LAN Manager authentication level.

Why is Ntlm insecure?

Unlike Kerberos, when a client authenticates to an active directory server using NTLM, it cannot validate the identity of the server. This means that a malicious actor with man-in-the-middle capabilities could send the client fake/malicious data while impersonating the server.

How do I know if NTLM is authentication is enabled?

How to Test the NTLM AuthenticationClick the Windows “Start” button on the computer that has a connection to the network. … Click the button at the top of the window labeled “Map Network Drive.” A wizard window opens that contains the options and configuration settings for a mapped drive.Click the “Browse” button. … Click “Finish” to map the drive.

Where is NTLM authentication used?

Windows Challenge/Response (NTLM) is the authentication protocol used on networks that include systems running the Windows operating system and on stand-alone systems. The Microsoft Kerberos security package adds greater security than NTLM to systems on a network.

How do I know if I have NTLM or Kerberos authentication?

If you’re using Kerberos, then you’ll see the activity in the event log. If you are passing your credentials and you don’t see any Kerberos activity in the event log, then you’re using NTLM. Second way, you can use the klist.exe utility to see your current Kerberos tickets.