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NTLM authentication with proxy server - WeOnlyDo Discussion board

NTLM authentication with proxy server (General questions)

by Stefan Grube, Friday, November 04, 2005, 15:49 (6958 days ago)

Hi,
I'm trying to connect to the internet via a Microsoft ISA server using NTLM authentication with your wodHTTPDLX component using Delphi.

What I did:

wodHttpDLXCom1.Blocking:=true;
wodHttpDLXCom1.AutoRedirect:=true;
wodHttpDLXCom1.ProxyType:=ProxyWindows; //the proxy server is set in my IE settings correctly
wodHttpDLXCom1.ProxyAuthentication:=AuthAutomatic; //should do NTLM is asked
wodHttpDLXCom1.ProxyLogin :=eLogin.text; //format:DOMAINLogin
wodHttpDLXCom1.ProxyPassword:=ePassword.text;
wodHttpDLXCom1.Get('http://www.weonlydo.com/Images/weonlydo.gif');

Unfortunately the component does not answer the authentication request for NTLM correctly and returns me the HTML error page (407-auth. required) from the proxy server as the result.
I've used the debug option and got a debug file that I'm going to send directly to your mail address.

What did I wrong?

Thanks for your help,

Stefan Grube

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Re: NTLM authentication with proxy server

by wodSupport, Friday, November 04, 2005, 16:26 (6958 days ago) @ Stefan Grube

Stefan,

I'm 99.99 sure that component does answer correctly, I remember that we had many issues like this, but I don't personally remember how we solved them.

Anyway, can I connect to your ISA and try it out? I would need some debugging to do.

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Re: NTLM authentication with proxy server

by Stefan Grube, Friday, November 04, 2005, 18:04 (6958 days ago) @ wodSupport

Unfortunately the ISA proxy server is only accessible from inside our company network.
I'm happy to assist you with debugging, just let me know what to do...

Cheers,
Stefan

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Re: NTLM authentication with proxy server

by wodSupport, Friday, November 04, 2005, 20:08 (6958 days ago) @ Stefan Grube

Stefan,

then I guess I have to install it locally.

Tell me

1. which version of wodHttpDLX do you use?
2. What OS?
3. What version of ISA?

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Re: NTLM authentication with proxy server

by Stefan Grube, Monday, November 07, 2005, 10:18 (6955 days ago) @ wodSupport

Hi,

we have an MS ISA 2000 server, using NTLM for the proxy.
I'm using WinXPPro SP2 and the latest WodHTTPDLX 1.3.8.

Hope that helps,

Stefan

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Re: NTLM authentication with proxy server

by wodSupport, Saturday, November 12, 2005, 02:41 (6951 days ago) @ Stefan Grube

Stefan,

it took a while, sorry about that, I had to get all the neccessary software. I found Windows 2000 and MS ISA 2000 and installed them. Then I made ISA accept only authenticated clients for HTTP connections.

I took latest wodHttpDLX, set ProxyType to ProxyWebStandard on port 8080, and made it request google page through that ISA server.

It worked correctly. I double-checked logs for NTLM, and I see NTLM was really used for this connection.

So, seems things are working correctly, for me at least. I can give you access to my ISA server if you can change it so wodHttpDLX doesn't work anymore with it.

Regards,
Kreso

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Re: NTLM authentication with proxy server

by Stefan Grube, Monday, November 14, 2005, 10:48 (6948 days ago) @ wodSupport

Hi Keso,

After changing the ProxyType to ProxyWebstandard it works.
Why did it not work with ProxyWindows ? All the info is setup correctly in my LAN settings as I could connect to the internet with IE and Firefox etc?

Thanks for your help anyway,

Stefan

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Re: NTLM authentication with proxy server

by wodSupport, Monday, November 14, 2005, 17:26 (6948 days ago) @ Stefan Grube

Stefan,

good point - let me try that, I'll post my results here.

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Re: NTLM authentication with proxy server

by Stefan Grube, Friday, November 25, 2005, 10:05 (6937 days ago) @ wodSupport

Hi Kreso,

any news on the topic? Any luck with ProxyWindows?

Cheers,
Stefan

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Re: NTLM authentication with proxy server

by wodSupport, Friday, November 25, 2005, 10:07 (6937 days ago) @ Stefan Grube

Stefan,

I think this is fixed. Can you please request update and try it out?

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Re: NTLM authentication with proxy server

by Stefan Grube, Thursday, December 01, 2005, 10:01 (6931 days ago) @ wodSupport

Hi,

I can confirm that the proxytype ProxyWindows works now as exptected with version 1.3.9 of wodHttpDLX.

Thanks for your help,
Stefan

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Re: NTLM authentication with proxy server

by Paco Lianez, Wednesday, December 28, 2005, 12:25 (6904 days ago) @ Stefan Grube

Version 1.3.9.101

It does not work for me if I set 'Automatically detect settings' in 'Local Area Network (LAN) settings' in Internet Explorer.
It works if I set manually proxy server and proxy port in IE

Any ideas?

Thanks

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Re: NTLM authentication with proxy server

by wodSupport, Wednesday, December 28, 2005, 23:36 (6904 days ago) @ Paco Lianez

Paco,

what exactly are you proxy settings in Windows? I can try to use them locally and see what's going on. What type of proxy is used?

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Re: NTLM authentication with proxy server

by Paco Lianez, Thursday, December 29, 2005, 09:25 (6903 days ago) @ wodSupport


Proxy: ISA 2000 with NTLM
Proxy Settings in IE (LAN settings): Automatically detect settings

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Re: NTLM authentication with proxy server

by Paco Lianez, Monday, January 09, 2006, 19:27 (6892 days ago) @ Paco Lianez

Any news on the topic?

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Re: NTLM authentication with proxy server

by wodSupport, Monday, January 09, 2006, 20:38 (6892 days ago) @ Paco Lianez

Paco,

no news. Seems that 'automatically detect settings' doesn't write anything to registry to appropriate place where we would read about it. I don't think we can handle such cases.

Kreso

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