Windows authentication (or Integrated Windows Authentication) is a process where connections to applications or external systems are automatically authenticated with the currently logged on Windows user. This functionality was first made available in Windows 2000.

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User authentication — username mismatch in IIS in ASP.NET application

Last week, an employee's Active Directory username was changed (or a new one was created for them). For the purposes of this example, let's assume these usernames: Old: Domain\11111 New: Domain\22222 ...
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999 views

Why can a user log in via more than one UPN

I've changed the for all users UPN suffix of a company from us.mycompany.local to mycompany.com in order to use claims aware applciations. In testing before the change I discovered that even if I ...
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298 views

Cross domain UNC Paths - Securing Credentials

I have a folder on a Remote Domain: \DomainRemote\Shared_Folder And a process on a local Domain which needs to access said share: Trusts exist between the domains - but only authenticated users ...
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352 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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311 views

Powershell - how to Start-Job with an ActiveDirectory credential

My client controls access to their database with ActiveDirectory. I would like to do the following: $cred = Get-Credential Start-Job -Credential $cred { #do some stuff with the db } This works ...
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IIS - login by domain name is ok; login by IP address fails

I configured IIS server to use Windows authentication. On a client computer, I used IE to open a website of IIS by domain name - this resulted in automatic login. IP address - a dialog box appeared ...
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306 views

MS SQL 2008 - Can I use Windows Authentication to connect from a Mac

I have been using Navicat SQL on Mac (Snow Leopard) to connect to MS 2005 via "Basic Auth" and all is good. However the DB is now being migrated to MS 2008 and try as I might I cant get on via Windows ...
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691 views

Workstation authentication against wrong AD server in multi-site configuration

Having a problem which I've seen before but haven't yet found a solution to, I've got multiple AD sites in one domain physically separated and logically separated by different subnets and AD sites. ...
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275 views

IIS, SQLServer, Google Chrome and Windows Authentication

I'm searching the internet for almost 4 days now and I'm stuck. I've created a simple ASP MVC4 Intranet website and I have deployed it to server called: iis. That computer is inside the same domain ...
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How do I log in, using SSPI, to SQL Server 2008 R2 on a server in one workgroup from a workstation in another?

We're having trouble connecting to our SQL Server (2008 R2) via SSPI. Our team has recently moved from a domain-based setup to a decentralised workgroup-based setup. Each developer has access to a ...
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Getting http 403 error when accessing website from remote client

I have created an asp.net website that is to be accessed from client browsers running on the same domain. I've hosted the site on IIS 7.5 I have disabled Anonymous Authentication and Enabled Windows ...
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48 views

Authenticate to a machine not in the domain

I set up a windows server 2003 in a VM to test some code. The prod server has IIS6 and since I have Win 7 I can only install IIS 7 in my dev machine. Obviously I didn't add the machine to my company ...
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Kerberos authentication failing with 401

We have a .NET MVC 3 application deployed in IIS 7 on our Windows 2008 server (let's call it PROD). The application has Anonymous and Windows Authentication enabled - all others are disabled. The ...
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93 views

Windows Authentication over diferent domains

In my company we have a very complex infrastructure. We are from a subcompany, and we have a Active Directory Domain, configured in our PC's. Otherwise, all of us, have a Directory account for main ...
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154 views

Linux workstation and Active Directory authentication

I read a few articles regarding "How to Authenticate Linux Clients with Microsoft Active Directory" My question before I do it: what will happen to Notebooks that try to login when the Active ...
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IIS reverse proxy with Windows Auth throwing intermittent 502 errors

I have set up a web site (www.mysite.com) on IIS to provide SSL and Windows Auth, and to forward all HTTPS requests to another server (BIOS name: internalserver; port 2080). The rule specifying this ...
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IIS 7.5: How to configure custom Authentication Error page with Windows Authentication. 401 header problems

I have a php website running under IIS 7.5. The site is secured by Windows authentication and that works fine: When users go to the site, they are asked for username/password and get through if ...
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568 views

Why Does A/D Account Need SQL Server Login?

I need some help on understanding the differences between Windows and SQL Server Authentication: We have a SQL Server 2008 set to SQL Server and Windows Authentication Mode. There is one A/D user -- ...
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282 views

Does active directory log authentication success/failure with the OS?

For example, if I use an AD account to login on Windows 7 and then Windows 8, will I be able to tell in logs setup by default? If not by default, how would I set this logging up?
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172 views

Inter-connect two active directories for sharepoint authentication

I have 1 server with windows 2003 which is our office's domain controller, and other server with windows server 2008 in another office. The domain names are different, and what i need to do, is ...
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1k views

Microsoft Application Request Routing with Windows Authentication

I'm running into a problem trying to get Windows Authentication working in an environment that uses Microsoft Application Request Routing and was hoping someone might be able to help. The problem I'm ...
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80 views

Using Windows Authentication accross Domains when using VPN?

Is it possible to use Windows Authentication for users who are logged into their computer on one domain (ABC) on a particular AD system, for services that are on a second domain (XYZ) on a second AD ...
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Logging in user in Windows 2008 server using LogonUser fails on LogonType LOGON32_LOGON_SERVICE

I am using LogonUser function to logon an account to Windows 2008 R2 server on a domain with clusterring. When using LOGON32_LOGON_INTERACTIVE as LogonType, I successfully login. When using ...
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Risks of Kerberos Delegation

I've been spending hours upon hours trying to learn and understand Windows Authentication, Kerberos, SPNs, and Constrained Delegation in IIS 7.5. One thing I just don't get is why it is "risky" to ...
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Windows authentication to IIS on local server with fully qualified url

I have a web application set up in IIS 7 configured with Windows Authentication. I can authenticate to the machine via it's fully qualified url from any other machine and it uses the proper Domain. ...
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769 views

Restricting access to a website on IIS with groups

I'm trying to set up our websites to only allow access from users in certain AD groups using windows authentication but i can't seem to make it work. I've tried using IIS's authorization and ...
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358 views

Under which circumstances can a *local* user account access a remote SQL Server with a trusted connection?

One of our customers has the following configuration: On the domain controller, there's an SQL Server. On his PC (WinXP), he logs on with LocalPC\LocalUser. In Windows Explorer, he opens ...
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578 views

Intranet website - getting a login box although I have configured Windows Authentication in IIS

In a Windows AD domain environment (MYDOMAIN with DNS suffix mydomain.local), I have a server with an Intranet website, that runs on IIS 7.5. I have disabled all authentication types except Windows ...
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1answer
2k views

Windows authentication failure between multiple domains (sites)

I have just rolled out a new Intranet company wide - the company has 6 UK sites, each has a local domain called (for example) london.local, derby.local, thatlotupnorth.local etc etc, and each has its ...
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227 views

Windows Service and Group Policy unable to access network share on Win2008 Domain

I have one computer on my domain that has suddenly stopped receiving software updates via group policy. Domain logins still work, and group policy on the machine is still being updated, so it knows ...
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87 views

what to do with ms sql error 40 “”

I had no problem with my sql server and management studio yesterday, but today it does not connect and show me this error: A network-related or instance-specific error occurred while ...
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236 views

Windows authentication and multiple prompts

I currently have two IIS websites with windows authentication turned on. Internally on my network when you connect to them you're authenticated seamlessly and logged on. Externally you are prompted to ...
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522 views

How to login to VisualSVN Server (with Single Sign-On enabled) under other user than the currently logged one to Windows machine?

If you have Integrated Windows Authentication as the only authentication type enabled in VisualSVN Server you don't get any login / password prompts. You may find yourself stuck and confused if ...
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networking and authentication

I installed a RADIUS server in my network (Windows 2008) and Active Directory which contains different users; I also have an access point (tp_Link) authenticated on RADIUS server. I am using Windows ...
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Windows authentication to SQL Server via IIS and PHP

We're running a PHP 5.4 application on Server 2008 R2. We would like to connect to a SQL Server 2008 database, on a separate server, using Windows authentication (must be Windows authentication--the ...
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183 views

Adding a W2008 Authenticating Server to existing W2003 Domain?

I have an existing W2003 Domain, simple setup with one DC and a SQL Server (approx 100 users). There are issues with Windows 7 Clients and login scripts and we're now seeing much greater numbers of ...
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578 views

IIS Windows Authentication except for local machine

I have a PHP site (Default Web Site) and an ASP.NET site (application under the Default Web Site) running together. I have set up Windows Authentication for the Default Web Site and it's fine. The ...
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516 views

How to trust a non Domain PC over a VPN connected via a Domain Account for SQL Windows Authentication

We are trying to enable a windows login to SQL Server from an untrusted laptop. The SQL Server has been enabled to allow the domain account to login and browse the data When a domain user connects ...
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1answer
364 views

Upgrade Ubuntu 11.10 to 12.04: Apache not working anymore

I upgraded Ubuntu Server from 11.10 to 12.04 LTS. Now Apache is not working properly anymore. I'm using the module AuthenNTLM and that seems to be causing the issue. Apache Error log: [1556] ...
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AD User Passwords expiring without any notifications?

We setup password Policies in Active Directory to Expire peoples passwords after so many days. Well it looks like the time has come for the Expiration of the Passwords and people are getting locked ...
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Can I detect authenticated domain users in IIS / ASP.NET without prompting everyone else for credentials?

I am updating an old ASP .NET 3.5 webforms application which uses forms authentication. The requirement is that it needs to automatically log in authenticated domain users whilst still allowing ...
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2answers
357 views

Getting http 401.3 error despite giving the Application pool Identity permission on the website folder IIS 7.5

My Application users are getting http 401. error when they try to browser to my application. My app is a intranet Web Application which uses Windows Authentication. Anonymous authentication and ...
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1answer
2k views

Definition of BUILTIN\Users?

For a server on a Windows Domain, what is the membership of "BUILTIN\Users" exactly? (I figure this has an obvious answer, but googling hasn't given me any clear definitions)
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506 views

Domain authentication over OPEN wireless pre-logon (Windows 7 Pro) - No logon servers avail

I have a plethora of laptops that are joined to an AD domain. I have an enterprise wireless system setup, the users of these laptops will be using an OPEN unsecured SSID which will ultimately have a ...
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2answers
11k views

Integrated Windows Authentication with Chrome and FireFox

I have a webapplication which uses claims based authentication. The STS is ADFS 2.0. When I am in the intranet and use IE, IWA is used and no login dialog appears. When I am on the internet zone, the ...
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3answers
952 views

SQL Server bulk import from fileshare. How can I get SQL Server to see the share?

I have two servers A and B. B is a database server, A is (here) a client to the database server. A tool running on server A connects to SQL Server on server B and ultimately triggers a bulk import ...
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How to send mails using a custom .NET application and Windows authentication to a distribution list that only allows authenticated senders?

This is basically a cross post from my StackOverflow question to see if I can get a server side perspective. I'm trying to send automated emails from a C# console application from machines to clients ...
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1answer
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IIS 7 Windows Authentication Wrong User

IIS 7, Integrated App Pool, Identity set to NetworkService We've recently moved an asp.net MVC 3 to our production environment. The application uses windows authentication. The production environment ...
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1answer
217 views

How do I configure the Web Management Service so I'm not prompted for credentials to manage a remote IIS server

I have IIS 7.5 installed on Windows Server 2008 R2 and I have the Web Management Service configured to use Windows Authentication (including the WindowsAuthenticationEnabled registry key set to 1). ...
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119 views

Allowing services from another computer to access IIS

We're using some third party software which runs as a service on one computer, accessing an IIS resource on second computer. The second computer isn't in the same domain as the first, and there's a ...