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

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4answers
11k views

Authentication issues using NTLM, SSL, and SharePoint

I am currently experiencing problems with authentication on a SharePoint site. Routinely, user accounts(only one or so at a time) will be locked out and they will get 401 unauthorized errors. The ...
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1answer
2k views

Enabling NTLM Auto login on IIS for fully qualified domain name (FQDN)

I have noticed in our network that when I want to enable users to connect to a Web Application and be automatically logged in, I need to provide them with a URL such as ...
3
votes
1answer
3k views

Avoiding 401 response for each request using NTLM

We have here an ASP.NET 3.5 application using NTLM based Windows authentication. The system runs on a private network that is actually distributed over different geographic places (connected via VPN). ...
0
votes
1answer
2k views

How to setup user authentication on a Squid caching server?

i've got Squid-2.7 running on our Windows 2008 box. Works great. I wish to restrict access to it via username restriction. Currently, my username is BlahDomain\FooUser . Password: blah. Is there any ...
3
votes
5answers
6k views

Implications of allowing Windows clients to use NTLMv1?

I have a web application that I'd like to authenticate to using pass-through NTLM for SSO. There is a problem, however, in that NTLMv2 apparently will not work in this scenario (without the ...
2
votes
2answers
761 views

One computer cannot authenticate to TFS or Exchange

I have several computers... only one of which cannot authenticate to either my exchange or TFS server. (2 of the computers are at my home trying to connect to our exchange/tfs server at work, one of ...
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6answers
30k views

How do you find out if Active Directory is using Kerberos or NTLM?

Is there a command line program you can use?
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2answers
1k views

How can one perform TCP hijacking?

I am developing with an ASP.NET application that uses Windows Authentication. I have setup the web.config file to deny all unauthenticated users, and only allow users from a certain role. Using ...
2
votes
6answers
16k views

How to investigate windows network lockouts related to Outlook Exchange Server authentication?

I am an end-user, not an IT professional. Unfortunately my corporate resources cannot solve this problem. I am looking for some advice to give them. I've been account locked on our corporate network ...
3
votes
3answers
2k views

Risks involved in setting up Kerberos authentication for WSS Reporting Services

We have an established Intranet based on WSS with two front ends and a database. Currently all authentication is NTLM. We have installed Reporting Services In Integration Mode. RS works as long as ...