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

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ntlm transparent proxy ubuntu

I have a computer running Ubuntu Server 14.04 which is sitting on my work LAN. Access to the internet is achieved through a transparent proxy which makes use of NTLM Authentication. The way I would ...
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23 views

How to decode traffic as NTLM protocol in Wireshark?

I'm trying to debug NTLM authentication issue. One of my ideas was to capture the network traffic and look thougth it. In my case NTLM authentication is going over non-stardart port (6901). Of course, ...
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17 views

Windows Passthrough and Impersonation

Does pass-through authentication (under Windows and NTLM) use Impersonation method ? edit As I can see in log event, it is a real connection. Not a salad :)
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38 views

Active Directory / Freeradius / ntlm_auth / mail attribute

I am currently configuring a linux server with Freeradius to have our clients authenticate against our Active Directory for our WiFi-network. The goal is to have our users use the e-mail address that ...
5
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3answers
212 views

Check Primary Authentication Protocol for Active Directory (NTLM or Kerberos?) [duplicate]

How can I check, from a client machine (in Global Group)(also is local admin), whether the domain controller is authenticating my login request to the domain using NTLM or Kerberos? I know that ...
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19 views

What are the implications of removing Negotiate as a Windows Authentication provider?

A single user of our internal website is getting the following message when using IE9 to access one of our internal websites hosted on IIS 7.5: 401 - Unauthorized: Access is denied due to invalid ...
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106 views

How to configure Apache NTLM in order to get REMOTE_USER?

No matter where I put %{REMOTE_USER}, I got NULL. Can you please tell me how I can configure NTLM Apache in order to get REMOTE_USER ? RewriteEngine On #RewriteCond %{LA-U:REMOTE_USER} ...
4
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2answers
2k views

March 10th Patch Tuesday appears to cause SQL Server client connection problems

Since applying the full set of patches on a Win 7.1 Pro desktop and a Windows 2012 R2 Datacenter Azure server running SQL 2014, SQL Management Studio (2008 and 2014 versions) won't connect to the SQL ...
0
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79 views

Squid NTLM authentication started to fail

I have a squid server authenticating against a Win2k3 AD. The authentication is failing since today and I'm sure it is something on the windows side because on the linux machine there were no ...
0
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0answers
61 views

[cntlm]: How to configure cntlm for multiple users?

I configure cntlm for one user and it works well (firefox, yum...) but I would like to configure cntlm for multiple users. The service cntlmd is active. # chkconfig --list cntlmd cntlmd ...
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67 views

SSRS Returning 401 Unauthorised Error when calling web service

We have two web servers that call the SSRS service to query the reports held there. Both servers are set up identically but while one works the other returns a 401 unauthorised exception when trying ...
1
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0answers
66 views

Each request for a NTLM authenticated page served by an Apache webservice is doing CAN transactions

I develop a TYPO3 application which runs in a companies intranet. It is build on a CENTOS 6 platform with a MySQL database (5.1.16) and an Apache webserver (Version 2.2.15). For authentication we use ...
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44 views

Disable ‘Authentication Required’ login modal upon failed ntlm authentication on apache

I'm trying to disable the Authentication Required login modal that appears when the NTLM authentication fails and simply redirect the users to a login page.
3
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0answers
155 views

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 ...
0
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2answers
132 views

Change Mozilla settings globally on internal network

We have a network in our company and I want to set network.automatic-ntlm-auth.allow-non-fqdn parameter to True in Mozilla FireFox for all clients,how can I do this?
2
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0answers
327 views

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 ...
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0answers
175 views

NTLM in Chrome not working

I'm writing a web app for my work's intranet. I'm using NTLM to authenticate users automatically. The server is running on a local domain, so myServer is really myServer.MyCompanyDomain.local. IE uses ...
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0answers
40 views

IIS 6.0 reverting to NTLM authorization

This is related to my other question here. We have a .net 2.0 app hosted in IIS 6 on two different servers (the second server was setup to troubleshoot this issue) these servers are on two different ...
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1answer
334 views

Apache - Replace Apache::AuthenNTLM with Kerberos (mod_auth_kerb)

Within an intranet system on Solaris we currently use perls Apache2::AuthenNTLM module to authenticate with a Win 2k3 doman server, so we can access the user ID of the person browsing the site. ...
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0answers
524 views

Cross-server NTLM authentication failing

I think this issue has less to do with software development and more to do with general network configuration, so I'm posting the question here initially. I have an MVC4 application hosted in IIS 7.5 ...
6
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2answers
2k views

NetApp erroring with: STATUS_NOLOGON_WORKSTATION_TRUST_ACCOUNT

Since a sitewide upgrade to Windows 7 on desktop, I've started having a problem with virus checking. Specifically - when doing a rename operation on a (filer hosted) CIFS share. The virus checker ...
5
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1answer
2k views

“Anonymous Logon” vs “NTLM V1” What to disable?

Working on getting rid of NTLM V1 logins all together in the AD environment; found lot of events, almost all of them from the user "Anonymous Logon"(4624 events) other 1(4624 events) percent coming ...
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238 views

Apache authentication - Exclude paths from <Directory> defined authentication

I currently use the following directives to apply NTLM authentication to our Drupal installation, but I need to exclude some paths. I've tried adding directives for the specific paths I want to ...
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2answers
3k views

Apache2 authentication NTLM without prompted semi Basic auth type

I succesfully configured ntlm authentication. Unfortunately config allows semi basic authorization. For example when I'm using tortoise svn1.8.4(with serf access lib), chrome or IE web browsers, they ...
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0answers
86 views

Proxy hosted in IIS with NTLM, how can I enable single sign on?

I have a forward proxy hosted in IIS with windows authentication enabled. Firefox is set up to use the proxy. Problem is, I don't know what to do with network.automatic-ntlm-auth.trusted-uris. ...
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2answers
1k views

NTLM through proxy server

We use squid as a HTTP proxy (if needed I can modify it's configuration). We want to access a website that uses ntlm for authentication When we go on the website through squid we see a blank page ...
3
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1answer
356 views

Does IIS NTLM/Kerberos authentication still work with an offline domain controller?

We have multiple IIS instances spread across remote regional branches. Each IIS instance (v.7.5) is running the same application and authenticates its users with Integrated Authentication (NTLM in the ...
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1answer
74 views

Why there are three rounds of message exchanges for integrated windows authentication for IE

According to the result monitored by fiddler, there are totally 3 handshakes for integrated windows authentication for IE. GET /home - 401 Unauthorized WWW-Authenticate: Negotiate, NTLM GET ...
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247 views

Improving Windows Authentication performance on IIS

We're struggling with performance issues with a ASP.NET MVC site that is using Windows Authentication. Response time is very slow on the first request to the site when the user is being ...
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0answers
2k views

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 ...
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0answers
101 views

NTLM Only working from some clients

I have a Windows test app, using .net4, which consumes a remote asp.net web service hosted under IIS6. The client app has hard-coded Windows credentials which it passes to the IIS box. The IIS box ...
0
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1answer
1k views

IIS 7.5 - Authentication works with IP Adress but NOT with FQDN

I'm using an IIS Server and run into the following problem: Using Internet Explorer, I type http://1.2.3.4/mySite/ and everything works fine, it uses my Windows credentials. When I try ...
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1answer
996 views

Squid Proxy and AD auth generating errors on Squid startup

I need some advice with an error i am getting when trying to start Squid which has integrated NTLM / AD auth setup. heres the back story: I've followed this guide word for word on the setup, ...
2
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0answers
257 views

NTLM authen not available after installing MS Exchange 2013

After installing MS Exchange Server 2013 the SMTP service is running. However when telnetting the host I get 'AUTH' after 'EHLO', rather than 'AUTH NTLM'. I have checked off "integrated Windows ...
2
votes
2answers
1k views

IE supplies wrong username for NTLM Proxy Auth

We have a managed proxy based on Squid, using NTLM "fakeauth" authentication. The system has been running well for over a year. My issue lies in the client I believe. Yesterday, a specific user on a ...
0
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1answer
3k views

Samba authentication of user with wbinfo -a

i setup a RedHat server with samba/kerberos/winbind. I can retrieve my user and groups with wbinfo -u and wbinfo -g. BUT in the listings, the name appears like that : wbinfo -u DOMAIN+username1 ...
0
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1answer
279 views

IIS 6.0 App Pool under domain service account unable to use NTLM authentication

I'm trying to move an old internal web site into its own app pool run by its own service account, so that I can get finer-grained control over its permissions and such. The site is set up to use ...
2
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3answers
626 views

Access internally hosted IIS with Windows authentication from Internet

I have .NET web application running on IIS behind the firewall. Application is using Windows authentication (NTLM) to authenticate users. I need to make this application accessible from Internet so ...
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1answer
685 views

IIS 7.5 selectively overwrites my error response page

Using Windows 2008r2, IIS 7.5, I have an application using Windows Integrated Authentication (WWW-Authenticate: NTLM, Negotiate). In my ASP.NET MVC code, I am overwriting the IIS error page ...
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0answers
452 views

IIS7, Kerberos, sometimes no response from browser to 401

SharePoint 2010 hosted on IIS7, Kerberos enabled. Clients log on through Citrix on several terminal servers. Kerberos is working on several clients, so SPN's are defined correctly, but on some clients ...
1
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1answer
1k views

IIS6/NTLM : very slow authentication with user from other domain

I have a WSS 3.0 website hosted on IIS6. It's fully configured for NTLM only. It is hosted in domain A. When users from domain A attempt to access the website, it works fine. Now we are in the ...
2
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0answers
1k views

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 ...
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0answers
161 views

IIS logging one 401.5 response, followed by a 200 response

We are using pass-through authentication on our intranet. The clients are running Google Chrome Frame in IE and the server is running IIS 7. In the IIS logs, for every request we are seeing a 401.5 ...
0
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0answers
135 views

How to allow all users to be 'authenticated' by winbind

I'm facing a problem with the infamous NTLM authentication implemented on RHEL5.3 server using Samba (winbind). The problem is that we have a requirement to disable the authentication in a sense to ...
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0answers
179 views

Transparent Proxy For Individual Web Apps?

At work, I perform automated testing of our front-end web apps that use Active Directory for authentication. One tool (Sahi) uses a local proxy to go between the web app and the user's browser, to ...
6
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2answers
1k views

ntlm_auth - can login in AD with both old and new passwords

I have problem with AD and ntlm_auth. I use the following command, to query the AD server for checking the user existence: ntlm_auth --use-cached-creds --username=SOME_USER --password=SOME_PASS ...
0
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1answer
2k views

I want ntlm auto authentication but login popup uppears [closed]

I built a php intranet web application that allow users to show their information stored in Active Directory. I want to auto authenticate the user over the Active directory using his windows ...
1
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1answer
176 views

Routing all outgoing http to ntlmaps [closed]

I have a linux ubuntu vm which hosts a xampp setup. Unfortunately i'm behind an NTLM proxy so i cannot get php to "communicate" with the outside world. Apt-get works fine since i have setup ntlmaps. ...
0
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1answer
512 views

Does Windows 7 store domain account and password in SAM

If my machine has Windows 7 and connect to domain, what happens when domain controller is unavailable ? How do I exactly log in when domain controller is unavailable ? I mean normally it should use ...
1
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1answer
743 views

SMTP Relay via MS Exchange

I am trying to pragmatically send e-mail to external user with Exchange. Now I know if Relay is not Enabled in Exchange Server then e-mail relay will not work. Now, if I send e-mail from my Outlook ...