//flex table opened by JP

Click to See Complete Forum and Search --> : NLB + FQDN + Windows Integrated Authentication = 401.1 or 403.x error


AllGamer
03-02-2006, 07:41 PM
I need some help to figure this Authentication problem out.

I've got 2 servers properly setup (as far as i know) for NLB.

in the DC, both machines shows up properly in the NLB Manager, both green and each with their static IP, all logs and test shows good to go.

The actual machine itself are both set to point to the same NLB IP address, actually the NLB Manager does all that for you when you configure it.

each NLB machine has been setup with its priority level 1,2,etc...

Kerberos Delegation, has been configured properly for DC Server, NLB Server1, NLB Server2, and all users accounts.

Both servers of course are joined to the domain.

did the

cscript adsutil.vbs set w3svc/1/NTAuthenticationProviders “Negotiate,NTLM”

(reference from http://support.microsoft.com/?id=832769)

and

setspn -A HTTP/ServerName Domain\UserName

to make sure Kerberos is good.

both servers has been restarted, and of course in DC both Computers has been enabled for Delegation as well as the users accounts.

IIS 6 (win2003) on each machine works fine if set to Anonymous.

if i remove Anomynous access for IIS, and enable only Windows Integrated Security, then BAM ! i get hit in the wall with the Pop Up for the annoying User Name \ Password screen.

it does not when set to be accessed via http://NLB.domain.com (however it does work if accessed via http://NetBIOSname.domain.com)

That's is not too much of a problem, since it was expected.

So set IE to trust the FQDN, even tried to add the FQDN to the Local Intranet in IE in security settings.

no good, still pops ups

tried the recomendations and settings in this Microsoft KB

You receive error 401.1 when you browse a Web site that uses Integrated Authentication and is hosted on IIS 5.1 or IIS 6
http://support.microsoft.com/default.aspx?scid=kb;en-us;896861

restarted machines same problem, still ask me for user name and password

The problem is that IT DOES NOT accepts any user name and password.

and... well... i'm tired and kinda getting a bit :mad:

Anyone know what am i missing? :t

AllGamer
03-03-2006, 08:03 PM
:( .... i guess no one has any ideas then...

Sterling_Aug
03-03-2006, 10:42 PM
I would guess no one else is in a position to have gone thru the same situation that you have.

AllGamer
03-15-2006, 03:28 PM
^ bump ^

anyone been in this scenario before?

jcaples
03-23-2006, 02:33 PM
I had the same problem in the past few days. We went live with an NLB configuration behind a firewall. If I access either of the two nodes directly via IE no problems, but can't access the NLB via IE without getting prompted username and password of which nothing will authenticate. Did some research and found that this is only an issue on Windows XP SP2. By default Internet Options-Advanced-Enable Integrated Windows Authentication is on and if you shut if off on the client machine it will work. I haven't found this to be an issue with any Windows 2000 client machine.

I am now actively working on changing the authentication from Integrated Windows to Digest on the web server in IIS 6.0 but need to get a better understanding if I will be exposed to any security issues if I don't use Integrated Windows at the web server.

Hope this helps.