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what does network security: minimum session security for ntlm ssp based clients do?

NTLM SSP based (including secure RPC) clients need to provide at least minimal session security. Servers may be affected by this value if their applications use either the NTLM SSP or secure RPC, which specifies session security requirements for communication with clients. Session security for the NTLMv2 protocol.

what does network security: minimum session security for ntlm ssp based clients do - Related Questions

What is NTLM session security?

This set of Microsoft security protocols provides authentication, integrity, and confidentiality to users on a Windows network based on NT (New Technology) LAN Manager (NTLM). A Microsoft product that is much older than NTLM is Microsoft LAN Manager (LANMAN). It is its successor to the authentication protocol in LANMAN.

What does Ntlm stand for?

Microsoft New Technology LAN Manager (NTLM) is a set of security protocols for authenticating users' identity, protecting their activity and ensuring its integrity and confidentiality.

What is Ntlmssp used for?

NTLMSTP (NT LAN Manager (NTLM) Security Support Provider) is a binary messaging protocol used by the Microsoft Security Support Provider Interface (SSPI) to facilitate NTLM authentication with challenge and response, as well as to negotiate integrity and confidentiality.

Is NTLMv1 secure?

It is critical to understand the adverse effects of using the NTLMv1 protocol on network security, which may compromise it.

How do I get rid of NTLM?

Running secpol.msc will resolve the issue. Go ptions. You should deny all NTLM traffic from remote servers via Network Security: Restrict NTLM: Outgoing NTLM traffic to remote servers.

Where is NTLM used?

Applications currently in use. Workgroup configurations using Windows authentication require NTLM authentication. NTLM authentication is still supported with Windows authentication. In addition to domain controllers, NTLM authentication is used for local logon authentication.

How does NTLM work?

User authentication is done by using the encrypted challenge/response protocol, which prevents the user's password from being transmitted over the wire. This process lets the client calculate a cryptographic hash of the password, discarding the actual password, and then send the encrypted user name to the server.

What is NTLM in Active Directory?

As part of an Active Directory domain, Windows NT LAN Manager (NTLM) provides a challenge-response authentication protocol to authenticate clients. In NTLM, users have only to provide the underlying authentication factor once, at login, instead of multiple times if they are using SSO.


As part of its authentication process, NTLM Authentication module employs a simple LDAP connection to Windows Active Directory. As seen in the example above, this LDAP module was designed to work exclusively with Microsoft Windows Active Directory. Only IIS6 and Windows Server 2003 Domain Controller were tested in the Active Directory environment.

Why is NTLM used?

It is also called Windows Challenge/Response (NTLM), and is the authentication protocol used by standalone computers and networks that run the Windows operating system. When using NTLM, the authentication process is based on a challenge/response protocol that uses encryption and does not send passwords over the Internet.

How does NTLM work?

An username is sent to the host by the client. A random number (the challenge) is provided by the host. It then calculates a hashed password value based on the data and sends it as a response back to the server.

What is Ntlmssp process?

With its authentication service identifier of RPC_C_AUTHN_WINNT, the NTLMSSP is a security support provider available for all DCOM versions. The authentication procedure is based on the NTLM protocol. The identity of NTLM clients consists of a domain name, a user name, a password or token, and they have to authenticate.

How do I know if NTLM is used?

In order to identify which applications are using NTLMv1, enable Logon Success Auditing on the domain controller. Then, look for the Event 4624 in Success auditing, which identifies the NTLM version.