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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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NTLM with cURL returns 401

Goal: connecting to an Exchange server (EWS) Method: cURL Problem: Cannot get authenticated (NTLM), request returns 401.1 There seems to be an old, well documented 2 issue that started with cURL's move from OpenSSL to NSS. I read that the…
Nanne
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Hardening a file-serving Windows Server 2019 instance

I'm in the process of re-configuring and securing a server for the small company that I work for. We use it to store design files and other data with Autodesk Vault. It's running on a VPS from a server provider close by. The reason I'm doing this is…
Felix Eriksson
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Apache mod_auth_kerb asking 2 authentication

I've configured Apache to use mod_auth_kerberos. So far everything is working nicely for client thats connected to Active Directory and have their browser to NTLM enabled. When clients are not in the domain or the browser configured not to…
Rianto Wahyudi
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Configure ntlm_auth for offline operations

We currently have a NAC server set up to authenticate against a Samba4 AD using the ntlm_auth utility and would like to make it more tolerant to network outages. Currently, when the NAC loses connectivity to the Samba4 Active Directory, every login…
Antoine Benkemoun
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FreeRADIUS using Active Directory integration broken without any traces

I've a FreeBSD 10.0 server running FreeRADIUS 3 and things got broken without any apparent reason. I'm using Winbind from Samba4 to authenticate with ntlm_auth. I've done some debug to solve the problem, but I was unable to find where is the…
Vinícius Ferrão
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Squid Logs NTLM usernames only for certain requests

Currently I have squid 3.2 setup with NTLM authentication and LDAP Group pulls. I also have MySar running to pull the reports. It seems that the way the logging works is by passing them twice, one to authenticate and one to accept. However with…
alucas
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How can I inspect why Active Directory can't use kerberos and fallsback to NTLM?

I have been trying to get squid running with kerberos auth for a few days but I'm in some trouble. The problem has been asked and replied many times on both the squid-users list and on the web, I have read them all, and tried to solve the problem.…
Muhammet Can
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Why is squid breaking kerberos/NTLM auth?

I'm using squid 2.6.22 (Centos 5 Default) as a proxy. Squid seems to break the authentication process for web pages when they require NTLM or Kerberos Auth. I tested with sharepoint 2007 and tried all 3 authentication methods (NTLM, Kerberos,…
DonEstefan
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Which ports are needed for NTLM (Windows Authentication) to connect to SQL Server?

I've got SQL server running on a machine which is not in a domain, and which is not operating in mixed mode (it's running with "Windows Authentication"). I'm trying to connect to it from a Linux web server running freetds via TCP/IP, using NTLM to…
Adam Bellaire
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Getting Authentication Negotiate instead of NTLM while consuming SOAP WCF Service in Net.Core 2.1

I was trying to connect to a WCF SOAP service using NTLM Authentication Scheme, I succeeded at it when using .Net Framework 4.x but when I try to consume the same service in .NET Core 2.1 it fails (because the Authentication scheme is sent as…
dennisbot
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Optional NTLM authentication in Apache

I have a site set up to authenticate users using NTLM in Apache on Linux using perl's Apache2::AuthenNTLM module. This works great when I require the authentication, but I want this to bypass the website's built-in login when the user can…
user29745
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Weird IIS with Windows Authentication + IE problem

I have a website running on IIS and using Windows Authentication. All users that are configured to get access to the site are form a AD domain (not local users). In the properties of a Website, I have set to use the AD domain as the realm. Now, when…
Paulius Maruška
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NTLM on a Load Balanced Environment

We have a Netscaler VPX that load balances HTTP requests to 3 IIS services on 3 Windows servers. Authentication is set to "Windows Authentication" but because our environment isn't set up for Kerberos the authentication falls back to using NTLM.…
Bruno
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Unable to configure CNTLM

I am setting up a proxy server on my linux system using CNTLM. I have edited the cntlm.conf file and made the following changes- # # Cntlm Authentication Proxy Configuration # # NOTE: all values are parsed literally, do NOT escape spaces, # do…
Backspace
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What does AuthForwardServerList do?

A bit of context, we have several Windows 7 clients connected to an LDAP backed Samba PDC. We also have a Zimbra 8 server that authenticates off the same LDAP. When users logon to the Windows 7 clients, a batch script maps number of network drivers…
jeshurun
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