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Questions tagged [windows-authentication]

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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RDP login works when using Android App, but now when using Windows [closed]

I am trying to connect to my work machine using RDP. Using my Android Phone I can connect to it. It shows up in the list and I fill in my details like so: COMPANYNAME\USERNAME. Then I enter the ...
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Windows authentication (AD) not working when IIS Application pool is running as custom user

I'm using: Windows 10 x64 Professional (in ad domain) IIS 10 Web site is running under local user EPM_USER, everything works except Windows authentication Configuration: When I try to from another ...
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asp classic application inside an ASP.NET application - Windows Auth not working Kerberos and Edge browser

I have an asp classic application inside an ASP.NET application. The default.aspx page reads the Windows login of the user and looks them up in a database table. Then it puts the credentials in a ...
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Is it possible to set up a on premise Windows Server so that its possible to login with Office 365 credentials?

It feels like I've searched everywhere about this but I get lost in all the variants that exists. What we want: To be able to login on our (on premise) Windows Servers using our Office365 credentials. ...
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Ubuntu Kerberos Parent Domain Auth Fails

We have an Ubuntu 18.4 server joined to the child domain. I'm able to ssh to the server with child domain account but not with parent domain account. Here is my krb5.conf [libdefaults] ...
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1 answer
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Disable the Windows 10 Password login option when FIDO in use

Hello Collective intelligence, I have a question that is bugging me, I have a Yubikey 5C setup in Azure AD with passwordless auth and registered to my account, I can log into the PC using the FIDO key ...
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238 views

IIS Windows Authentication - Failure 2304 on some machines

I am working currently on an IIS server that uses Windows Authentication. There is a weird problem for me when there are some PCs that when trying to browse to the server - they get a prompt to enter ...
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29 views

Connect Link Server on SQL Server Linux using Windows Authentication

I am running SQL Server on Windows and using Link Server to connect to a second SQL Server instance. The second SQL Server is managed by a different company and the instance requires me to use Windows ...
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1 answer
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What is the proper way to use IIS to forward the REMOTE_USER header to Tomcat?

I am trying to set up SSO with IIS 10 and Tomcat 9. I want to use Windows Authentication in IIS and pass the authenticated username to Tomcat. I had this working with Tomcat 8.5, however after ...
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1 answer
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WCF "rejected the client credentials" just for one user account on two computers

I am getting the well known WCF service error when connecting from a client. The server has rejected the client credentials. Logon attempt failed. as described e.g. in this question. My problem is ...
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1 answer
63 views

Why would a server in an AD environment allow Remote Registry access by FQDN, but deny and lock out accounts over IP address?

We have a situation where a software application cannot be installed because the admin account used during installation gets locked out during prerequisite checks. After some investigation, we found ...
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Hyper-V Server 2012 R2 - replica VMs state "password incorrect", but lets me log in after 7-8 minutes

so I have a replica server that backups 2 server 2012 R2 VMs. Each week, I run a test failover to make sure they boot up, and I can log into them. A curious issue I'm having is, once I get to the ...
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1 vote
0 answers
501 views

IIS SSO not working, asking for login via login-prompt every new session

We are facing an issue where we don't get SSO to work on an IIS web app. We have set Windows-Authentication as enabled and Negotiate and NTLM as providers (IIS Windows Authentication and Providers). ...
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Logging all failed authentication attempts against Active Directory

I need to log all failed authentication attempts against my Active Directory domain. An external app binds to MS AD via LDAPS and uses AD for user authentication requests. When the wrong user or ...
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1 vote
0 answers
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Windows authentication across multiple hostnames without multiple credential prompts - is it possible?

I have a web application that utilizes multiple hostnames (see below for an explanation of why it's set up like this - I don't want that to distract from the more general question here). Basically, ...
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Cannot reach HTTPS page with self-signed server certificate and DoD CA certificates

I'm attempting to create a local web server using Flask, a Python microframework, that uses the PKIs on a DoD CAC. I've created the self-signed root CA and server certificate and key following this ...
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1 vote
1 answer
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In Windows Active Driectory, what's the purpose of SIDs when the username is already unique?

A Windows ID (such as MyDomain\someuser) will have a unique SID (such as S-1-5-21-1695517229-881958489-217698969-1001) The ID is used during login, which confirms that it too is unique in nature. What'...
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Sharing a UPN between root and child AD domains

Is it possible to share a UPN between a root and child AD domains? We're considering our options around how to structure an Active Directory domain with the option of splitting off the child domain ...
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4 votes
3 answers
19k views

Remote Desktop Authentication without NTLM - How to Configure from non-Windows clients?

Background This has been bugging me for quite a while (and no amount of internet searching has amounted to a decent solution), so I'm hoping someone can offer some sage advice. When I try and start a ...
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Using custom auth through hardware device on Windows network map drive possible?

I want to custom the auth method when connecting smb as a client on Windows to a linux server. I expect to it to work like this: When connecting as a network map drive, Windows auth center will read ...
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0 votes
1 answer
351 views

Windows Authentication not working on Windows Server 2012 R2

I've exhausted every bit of me to get Windows Authentication to work on the server and I cannot find any help on the internet. Windows authentication is working on my local PC, below is what I've done ...
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Configure an IIS 10 ASP.NET MVC app to allow only specific domain user to access "/api/" URLs

This is on Windows Server 2019, the web app is a ASP.NET MVC app (.NET FW 4.6) I'm not sure how to debug this. The AppPool runs under a Managed Service Account! (not that it helps using ...
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How to configure Windows Authentication (NTLM, Negotiate) to work when using IISARR?

As part of the upgrade from Win 2008 to Win 2016-project, we have introduced the use of DNS-aliases (way overdue) for all IIS-sites in all enviroments. We now use IIS with ARR installed as a proxy ...
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No access over firewall to shared folder on clustered fileserver, but access to shares on a node server works

Update 2019-11-21: We have new a Windows Failover Cluster installed and are running a clustered file server on it that hosts file shares. We need to access these shares through a firewall from ...
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0 votes
1 answer
678 views

nginx - prevent caching authorization info

I am using nginx as reverse proxy for my asp.net core web application. I am using spnego module for nginx for supporting of windows integrated authentication. It is works, but if user enters incorrect ...
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134 views

How to login to MS SQL Server using Ubuntu OS & ODBC with disabled SQL Server Authentication and only accept Windows Authentication?

It is only part of my problem but technically, I am trying to access an SQL Server with disabled SQL Server Authentication using ODBC connection string in Ubuntu OS. I already tried to connect with ...
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What sort of authentication is a windows machine local group with a domain user added to it?

I went and looked at a service that was run by a domain user. The process for the service read from a file on the machine's hard drive, and in the ACLs for that service there was an ACE for the local ...
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2 votes
0 answers
236 views

Is it possible to limit SSRS authentication to Kerberos only?

We have an instance of SSRS (SQL Server Reporting Services) which uses Kerberos Constrained Delegation to fetch data for its reports from SQL Server on behalf of its users. For this purpose, SSRS was ...
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1 vote
1 answer
186 views

W10 Client temporary authentication failure when reconnecting network drives

The customer has a W10 laptop. The laptop is member of MyDomain. The user has 20 network drives mapped onto his laptop. The server is W2016 Domain Controller. The user logs in on his laptop using his ...
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1 vote
1 answer
2k views

Smartcard Authentication on Windows Domain Controller using Yubikey for Windows Login

I have a Yubikey 5 NFC and I am trying to configure it on a test bench for windows login authentication. I cannot seem to get the certificate to enroll on the Yubikey. I have followed the Yubikey ...
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2 votes
1 answer
342 views

How DC authenticates when Client is not using any authentication?

I have a virtual environment with the following structure: DC: Windows Server 2008 Client: Windows 7 I installed Active Directory on the Windows Server 2008 and made it in domain januapp.local, then ...
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2 votes
1 answer
1k views

IIS and HttpListener (.NET) with windows authentication

I have a question about Windows authentication with IIS and HttpListener I have the following setup (All installed in same Windows 8.1 box. No outside communication). All requests are sent as http://...
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2 votes
0 answers
108 views

Users getting locked out on local Domain Controller after switching default Exchange mail address to different domain

Originally, all of our users were on a single domain (ie. domain1.com) . After merging with a 2nd company, it was decided that we would use the 2nd domain (ie. domain2.com) as the primary company ...
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0 votes
1 answer
134 views

What are the rules regarding casing of values for environment variable USERNAME in Windows?

One of my customers says that in his AD usernames have mixed case sometimes and besides that, that people are able to successfully login using another casing of usernames. So there might be an ...
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0 votes
0 answers
113 views

Cannot log into windows 10 pro with static IP address and no internet access

I recently purchased a computer for a project at work. The OS is Windows 10 Pro. The computer asked for my Microsoft account while I was setting it up for the first time. I thought this was weird but ...
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1 vote
1 answer
3k views

IIS: Change Default Domain Controller For Windows Authentication

Please bear with me, I am a software developer and know little of Active Directory and Windows Server domains. I am running a .NET MVC intranet application on IIS (Windows Server 2016 Standard) that ...
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0 votes
1 answer
360 views

IIS Windows Authentication : IE not choosing the right certificate

I am trying to setup an intranet website (osTicket ticketing solution). I want my users to connect automatically to the website, so they don't have to fill their credentials. For this I have : ...
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1 vote
0 answers
417 views

Cannot use integrated security with netcore app on iis installed as a web site

I have a little test project in netcore (2.1.401) that returns the logged in user via CNTLM. I deployed it to an IIS server following [this guide]. I also added the website to the hosts file. If I ...
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4 votes
1 answer
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IIS and SQL Server Windows authentication in a django application

I am trying to run a django website which connects to a SQL Server, using IIS with Windows authentication. IIS server and SQL server are on different machines under the same domain i.e., iis_machine....
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0 votes
1 answer
1k views

NTLM with squid

I am new to Squid proxy and need help in setting up NTLM authentication. I checked so many resources on the web but did not find exact steps to get my work done Since I have no background on proxy/...
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1 vote
0 answers
739 views

Can't authenticate to IIS websites from within the server though I can from outside

I've installed IIS on a Windows 2016 server, and I'm configuring some websites that I'm migrating from a Windows 2008 server. The websites require Windows authentication. One of the sites is a service ...
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0 votes
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3k views

IIS Windows Authentication not asking for credentials

I am trying to set up a new web site using IIS7 on Windows 2008R2 The instructions i am using say to enabled Windows Authentication as seen below: The instruction say that when i try and request a ...
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1 vote
1 answer
226 views

Is there a way to configure IIS to require manual windows authentication even if user browser is configured for automatic logon?

Windows Server 2012 R2 IIS 8.5 Internet Explorer 11 I have an IIS web application that supports Windows Authentication (Providers: Negotiate, NTLM). I have a use case where a given user has ...
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0 votes
1 answer
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Client Certificate Authentication and Windows Authentication on IIS

I have a https service hosted in IIS 10 which previously was using windows authentication, and was working good. Now, we need to implement Client Certificate Authentication. Currently i have enabled ...
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1 vote
1 answer
775 views

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 ...
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1 answer
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Intranet running on IIS 8.5 with only Windows Authentication enabled returns 402.1 and then 403 error

WE've got an ASP.Net MVC application running on an internal server. We are using only Windows Authentication to allow access to portions of the site. When we set IIS to require an SSL connection (...
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2 votes
1 answer
49 views

Owner on CentOS changes to a numeric value after a set time [closed]

I have a CentOS web server that uses Windows Authentication from a 2012 r2 server on the network. Here is my issue: When I log on, all directories ls -l shows: ls -l drwxr-xr-x. 3 jbailey@...
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1 vote
0 answers
2k views

Log into Read-Only Domain Controller as administrator without connectivity to Primary Domain Controller

OK, I'm in a bit of a pickle. At one of our remote sites, we have a Windows Server 2012 R2 read-only domain controller that does not sync Domain Admin passwords. Anytime a domain admin tries to log ...
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1 answer
3k views

Windows Server 2012 R2 - Help finding failed logon attempts source

I'm seeking help for this issue that I'm having in our AD domain controller where a lot of security events are being logged due to failed logon attempts by a (former) domain user that has been ...
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1 vote
0 answers
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After a domain acct password change, what is the (max) length of time a windows service continue to run if not updated

I know the question is awkwardly phrased, and I also realize there are going to be multiple factors in this that don't lead to a single definitive answer. I seem recall in the past, having services ...
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