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Questions tagged [ntlm]

NTLM (NT LAN Manager) is a suite of Microsoft security protocols that provides authentication, integrity, and confidentiality to users.

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Powershell session from CentOS 7 to Windows Server 2019

I want to open a Powershell session from CentOS 7 to a Windows Server 2019 using a domain account but I can't get it working. What I've done so far: Enabled WinRM on Windows (verified connection from another Windows Server 2019) Installed…
Michael
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Prevent Anonymous logons on windows-server 2016

I can't figure out how to entirely disable anonymous logon on Windows Server 2016 which is not a domain controller (regular instance). With the settings currently set I'm truly surprised to see such logons come through which stands opposite to…
Vega4
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NTLM authentication module mod_auth_ntlm_winbind for Apache2 omits domain name

I have an Apache2 instance running on Ubuntu 18.04 in local intranet and I want to configure NTLM authentication on the instance. I have installed and configured mod_auth_ntlm_winbind usage for user.php like this: …
SniperJoe95
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Office365 NTLM authentication

Can I authenticate credentials with Office365 based on NTLMv2. Microsoft describes on Authentication and EWS in Exchange that clients can authenticate with Exchange based on NTLM, but My program connects to outlook.office365.com to authenticate…
John Smag
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Is there a way to have password-less SQL server login for another user without kerberos enabled?

I am connecting to SQL server with JDBC. I am able to use Integrated authentication with JDBC to connect to a SQL Server 2016 instance as the current logged in user, and I did not have to supply a password. The only auth scheme enabled in my sql…
Nicholas DiPiazza
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npm install behind one proxy but got Http Error=407 (Forefront TMG requires authorization)

The operating system is MacOS, and already set up http(s) proxy inside the Network Preferences, but always failed to install any packages when running npm install (npm is one package installer for nodejs) in the terminal, it popped up the error 407…
Sphinx
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Squid as transparent proxy to tunnel all connections under Windows

There's this app Joplin that can't connect to the internet on a corporate machine which lives on Active Directory and connects to the internet through HTTP and a NTLM proxy. The problem is that you can't configure Joplin to go through a…
microwth
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Auditing NTLM authentication on Domain Controllers: which GPO?

We are wanting to turn on NTLM authentication auditing to gather further details on some clients trying to authenticate using NTLM to the domain/DCs. Specifically we want to enable: Network security: Restrict NTLM: Audit NTLM authentication in…
TheCleaner
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Does Windows prevent automatic NTLM authentication when the SMB server is located on a different subnet?

I have a Samba server[1] on my network with a share configured[2] to allow access for my Windows logon user. I can access the share from the Windows 10 machine that hosts the SMB server VM without being asked for credentials. But another Windows 10…
Arne
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IIS Site Losing Ability to Authenticate With NTLM

We are having a recurring issue with one of our servers that I am not sure how to troubleshoot. The server is used to host an instance of Microsoft TFS and every few weeks Windows Authentication suddenly stops working on the TFS website. When this…
Chris
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LmCompatibilityLevel to be applied to client, domain controller or both?

I'd like to apply LmCompatibilityLevel = 5 to my domain but I am not sure if this is to be applied to all clients (via GPO), domain controllers only or to both. I am a little confused as the TechNet description states that this option is to have…
totalfreakingnoob
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NTLM Authentication fails once a week for only one user

I assist with running a small AD domain with around 40 members. For just one of those members, every wednesday at 12pm exactly, authentication will fail when they try to browse to the company intranet or helpdesk sites. These sites are hosted…
Mike Anthony
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Why is only the first request to an NTLM authenticating proxy challenged and how do subsequent requests through the proxy get authenticated?

I am trying to develop a network tunnel that can traverse NTLM authenticating proxies. As part of that I am investigating how NTLM auth works. My test setup has WinGate proxy on one Windows box configured to require NTLM auth. My Windows client is…
fineman
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Setup a proxy server using Windows Authentication (NTLM)?

I want to setup a proxy server using Windows authentication (formally NTLM), I know that there are better protocols that could be use (Digest, etc.). I've been struggling to find information on how to set it up. So far I figured out that you need to…
user3797758
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Determine usage of UPN for logon inside MS AD forest / domain

maybe somebody can give me a hint on this. I am evaluating the prerequisites for changing all (human) user's UPN in a large Microsoft AD environment to the recommended MS format (aligned with the user's primary public mail address incluiding the…
Matthias Raithel
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