All Questions
Tagged with ntlm windows-authentication
80 questions
1
vote
0
answers
15
views
does the user provide the hash of passwd in NTLM authentication or the O.S or the system
can you guys help and explain why ?
i think GPT provide wrong answer
Which is true for NTLM/LM authentication?
a) Client sends login request and encrypted password to DC
b) Client sends login request ...
0
votes
0
answers
879
views
IIS Reverse Proxy with Windows Authentication and user name forwarding
I need to connect legacy client systems doing Windows Authentication to a new backend that cannot participate in Windows Authentication.
For this purpose, I'm planning to use IIS, configure Windows ...
- 697
0
votes
1
answer
6k
views
ImmutableID of the user missing when trying to acquire a token for MS Graph API (Windows auth)
I'm developing an API that uses the Microsoft Graph Client SDK to make multiples calls to a Sharepoint site.
To authenticate the users making the calls to the API, I'm using the Integrated Windows ...
- 87
0
votes
1
answer
651
views
IIS hosted WCF service, using HTTPS-only and Windows Authentication for WPF client
I'm trying to setup a Client/Server scenario as follows:
Client:
WPF
.NET Framework 4.7.2
Server:
ASP.NET
.NET Framework 4.7.2
WCF
IIS Hosted
Windows Authentication
HTTPS only (port 80 not mapped)
...
- 341
0
votes
1
answer
2k
views
Configure Kerberos for Windows Authentication in ASP.NET Core on IIS
How can I configure default Authentication method for Kerberos and prevent using NTLM? Just for Windows Authentication. No middleware needed. No multifactor authentication needed.
Startup class:
...
1
vote
1
answer
653
views
AEM Dispatcher on IIS 10 with Windows Authentication NTLM - authentication problem when Dispatcher cache enabled
I have strange problem with AEM Dispatcher running on Windows Server 2019 on IIS 10 with Windows Authentication turned on.
When AEM Dispatcher is configured to cache static files, the website can be ...
- 41
0
votes
0
answers
593
views
asp.net core 3 HTTP.SYS with SSL, Active Directory + Kerberos - struggling with SPN?
I'm trying to run a net core 3 API as a windows service (i.e. not using IIS) with Http.Sys authenticating accounts on an active directory. I would like to have Basic auth enabled (have to support non ....
- 253
2
votes
0
answers
205
views
Sending large POST requests with integrated Windows authentication in OWIN self-host
I'm trying to set up an endpoint for authenticated HTTP POST requests that will handle requests whose bodies sit at around 15 kB.
I followed the description on MSDN and defined
var httpListener = (...
- 18.2k
2
votes
0
answers
413
views
Call SOAP API with NTLM authentication from webapp / javascript
I am creating a vuejs webapp and need to request data from an existing soap webservice with NTLM authentication. I have found some examples e.g. with ntlm.js how to do that, but it seems that the user ...
- 387
0
votes
1
answer
952
views
NTLM no longer working with Java WebStart following a Java upgrade
My company recently updated our Java client from JRE 1.8.0_111 to 1.8.0_211.
After the Java update, our Swing client application is no longer able to successfully perform Windows integrated ...
- 7,867
0
votes
1
answer
518
views
LDAP Auth with NTLMv2 invalidCredential
I want to set the NTLMv2 authentication on windows policy (secpol.msc)
In fact I set it this way:
Local Policies -> Security Options
Network Security: Lan manager authentication Level: Send ...
- 119
2
votes
1
answer
872
views
Web Service Credentials work from remote but not on the server
I'm calling a web service (named SecurityService) as below:
SecurityService.Service securityService = new SecurityService.Service();
securityService.Credentials = networkCredential;
return ...
- 173
9
votes
1
answer
7k
views
How to provide ntlm authentication while calling any url?
I have a hosted url which authenticates using ntlm (windows Integrated authentication). I am on windows and using java 1.8
URL url = new URL("someUrl");
HttpURLConnection con = (HttpURLConnection) ...
- 314
1
vote
0
answers
71
views
Can Windows Integrated Authentication be used to verify a $MachineName when initiated from a Windows Service?
I have a service account that communicates with a Web Service over HTTPS. I need to verify the calling machine name at the server, and deliver a response that includes this.
In my scenario, it's a ...
- 355
0
votes
1
answer
979
views
WebDav Windows Authentication on non domain join web server
Is it possible to setup IIS Webdav with windows authentication and SSL on a non domain joined web server?
The web server is hosted in azure and accessible via https 443. The clients are domain users ...
user6482708
1
vote
0
answers
789
views
Windows Integrated Authentication in Edge InPrivate doesn`t work
In Edge InPrivate mode my resources with Windows Integrated Authentication doesnt work, that means Security Window with prompt for credentials in dispalyed.
In normal mode WIA works correctly (...
- 11
0
votes
0
answers
2k
views
NTLM authentication on Squid proxy
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/...
- 31
0
votes
1
answer
924
views
Newman(Postman) - Import collection from a URL under windows authentication
I'm trying to run newman with postman collection from a url as mentioned in this link .
newman run http://localhost:62254/api/postman
Only catch is that the url is under windows authentication, so ...
- 1,432
5
votes
1
answer
6k
views
How does NTLM SSO in a Windows Domain works?
I made a proof of concept for single-sign-on in TypeScript using NodeSSPI. This works, I get the username where I'm logged in on our corporate AD domain - without entering any account information or ...
user6643481
2
votes
1
answer
3k
views
HttpClient 401 Unauthorized exception 'The system cannot contact a domain controller to service the authentication request.'
I get 401 Unauthorized error with exception when attempting to connect to a remote ASP.NET web api using HttpClient:
System.Net.Http.HttpRequestException: An error occurred while sending the request. ...
1
vote
1
answer
708
views
Integrated Windows Authentication using NTLMv2
I'm trying to achieve NTLMv2 type authentication but I'm having problems making it work.
I have configured the client to send the Type-1 GET request using the server's hostname and the domain I'm in.
...
- 4,626
1
vote
0
answers
4k
views
Windows NTLM authentication using Golang
Need to make http call using golang client (net/http) which requires integrated windows authentication (NTLM) (similar issue ) its not working.. - i am not what am missing below is the code that i ...
- 53
8
votes
2
answers
5k
views
SignalR not working with Windows-integrated authentication
I have an ASP.NET MVC 4 app (.NET 4.5) and SIgnalR works fine with forms-based authentication (hosted via IIS/IIS Express)
As soon as I change the app to windows-integrated authentication (<...
- 60k
1
vote
1
answer
7k
views
ApiController.User.Identity and System.Security.Principal.WindowsIdentity gives different user details
I have a OWIN hosted web api which runs as Network Service with WindowsAuthentication enabled by the following line in Configuration method of OWIN Startup class.
HttpListener listener = (...
- 1,086
3
votes
1
answer
15k
views
Http post requests unsing NTLM Authentication (java)
I tried to send a HttpRest Call using NTLM Autentication in Java. I tried using the org.apache.http library. it was not a big problem to use the HttpClient to send a Post Request with anonymos ...
- 111
1
vote
1
answer
2k
views
Enabling NTLM on firefox not working
I've been trying to get NTLM working on firefox but none of the options are working for me. They all point to setting:
network.*-uris setting: network.automatic-ntlm-auth.allow-proxies, network....
2
votes
1
answer
1k
views
Integrated windows authentication on linux with Asp.NET Core
Is there any chance to get the integrated windows authentication working on linux in ASP.NET Core? Is there a middleware which could enable this feature? Since its working on windows using kestrel, I ...
- 10.2k
0
votes
0
answers
106
views
Nancy: Use NTLM if available, if not, carry on anonymously
I have a Nancy server which is successfully issuing an NTLM challenge and resolving the user.
internal class Program
{
private static void Main(string[] args)
{
using (WebApp.Start<...
- 28.5k
0
votes
1
answer
751
views
Python urllib2 request exploiting Active Directory authentication
I've got a Windows server (Navision) offering web access to its APIs through Active Directory authentication.
I'm trying to make a request to the web server through Active Directory authentication, by ...
- 1,656
3
votes
1
answer
12k
views
Windows Authentication is not working in Chrome
In my MVC5 application Windows Authentication is not working.
When the application is opened in IE it is prompting for credentials each and every time (after clearing temp data, cache, cookies) when ...
user1618825
0
votes
0
answers
615
views
authentication mechanism NTLM in wildfly
as the valve in wildfly is no longer available, i don't found any examples NTLM autehntication with new AuthenticationMecanism in wildfly,
waffle NegociationFilter is not working because we are using ...
- 987
9
votes
1
answer
2k
views
Windows Executable File Authentication
Searching around the windows authentication methods and protocols, i decided to understand the exact difference between Negotiate, Kerberos, and NTLM used in a simple executable file before liking it ...
- 275
0
votes
2
answers
636
views
NTLM Windows authentication in WAS Liberty
I have a web application on Liberty that uses form-based authentication. Is there native support in Liberty to integrate NTLM-based Windows Authentication (Liberty version 8.5.5.6) ?
- 173
0
votes
1
answer
189
views
Authentification with Windows Auth NTLM
There is a WebAPI hosted in IIS. It is using Windows authentification with NTLM protocol only. If I am trying to reach it with chrome extension which gives me the ability to send REST requests, chrome ...
- 479
6
votes
1
answer
3k
views
AcceptSecurityContext fails when application is running as a service
I have a simple HTTP server that authenticates clients with Negotiate protocol. It uses SSPI calls to acquire server credentials and establish security context. The server is in domain and is running ...
- 3,448
0
votes
2
answers
3k
views
Use Windows Authentication to get User ID with .Net Identity for Role Management
We have an Intranet site we are developing in ASP.NET 5 aka vNext and MVC 6.
We'd like to be able to get the Windows Network ID the user is logged in as, but then there is an existing database ...
- 423
1
vote
1
answer
3k
views
Implement Kerberos authentication using C# on IIS
I have configured the kerberos settings in IIS, still it fallback to NTLM authentication.
Can you tell me the proper troubleshooting method for kerberos.
Can you explain detail (Configuration and ...
- 130
6
votes
1
answer
3k
views
cntlm proxy with phantomjs
I'm trying to use the cntlm proxy on my windows machine to talk to a local web application on IIS that uses Windows Authentication from PhantomJS. To create the proxy, I'm doing: cntlm -v -u username@...
- 1,868
0
votes
1
answer
377
views
Avoid NTLM authentication method
I have a web application which is developed using vb.net.
My web application uses Windows authentication mode.
Security team scanned the application and reported one issue.
Steps followed to produce ...
- 131
0
votes
2
answers
4k
views
Importing WSDL to soapUI from HTTP server using Integrated Windows Authentication
I am trying to import a WSDL (referencing a number of XSDs) to soapUI 5.0.0 (Build Date: 20140409-1012) from an intranet HTTP server requiring Integrated Windows Authentication (IWA, also referred to ...
- 1,032
0
votes
1
answer
294
views
SSO setup using Kerberos on windows server
I am new to SSO, We had a application using java implementation of kerberos SSO. Now we need to migrate the application to some other machine. I need to know what changes will be required in:
1. ...
0
votes
2
answers
2k
views
How to set up authentication layer in node.js app using ntlm
How to setup authentication in node.js application using ntlm ?
node.js is serving the webpages that need to be authenticated for windows user only, using ntlm. How to set up this authentication layer ...
1
vote
1
answer
3k
views
python http NTLM authentication using only standard library
I'm interested in a python implementation of http ntlm authentication without using the 3rd-party python ntlm library.
- 15.4k
2
votes
2
answers
7k
views
Windows authentication - Kerberos or NTLM (Negotiate oYICO...)
I have problems with a single user in an intranet application. The client side is a WPF application which communicates with a ASP.Net Web API Web Service.
The client sends HTTPS GET and POST requests ...
- 18.9k
7
votes
1
answer
7k
views
Forwarding NTLM credentials from IIS with ARR and URL Rewrite
Thanks in advance for your help.
In my environment, I configured IIS to act as a reverse proxy and forward requests to certain paths to an application server on another host. In order to do this, I ...
- 71
0
votes
1
answer
885
views
Windows authentication not working - invalid credentials passed to the SQL Server
I am stuck at the moment on trying to configure the Windows authentication on a web site.
The site is configured (in IIS 7.5) as follows:
Windows authentication and ASP.NET Impersonation - Enabled.
...
- 483
2
votes
0
answers
1k
views
401 error - IIS7.5 site does not fall back from Kerberos to NTLM
I have a site hosted in IIS7.5 on Win2008 R2.
Assume the server is called 'prod1' and the site is bound to a hostname of MySite, and also to prod1:8080. The site's application pool runs in a domain ...
- 1,027
2
votes
0
answers
238
views
How to Consume Non-public NTLM WCF Service From Windows Azure Cloud Service?
I have a Windows Azure Cloud Service with a single worker role. The worker role's App.config file specifies NTLM credentials should be used for the WCF authentication (Gist for all of this : http://...
- 3,444
0
votes
1
answer
2k
views
NGINX => APACHE + SSPI
We have an apache server with sspi authorization. We are using mod_auth_sspi. And now we need to proxy our api on another server via nginx. The main problem is how to make NTLM(as i right understand ...
- 1,328
0
votes
0
answers
2k
views
NTLM Auth in WinHTTP
I am having a couple of issues with NTLM authentication using WinHTTP. Whilst monitoring the traffic in wireshark I can see the request being made, yet the client never sends the authentication ...
