Question

EBS 2008 RWW Single Sign On to OWA error

Asked by: FreechoiceIT

Hi All,

When in RWW, if i click "check email" I an error as attached.

I have dug up the RWW Logs, and the best i can make out is that a file called clientauth.dlll could not be found. Indeed if i browse to remote.freechoice.net.au/clientauth.dll - i get a 404.

i have searched all 3 servers in full for this file, it does not exist. A i correct in assuming this missing file (and maybe others?) are to blame for the error? It should be noted that last week, this error did not exist.

RWW from the internet was not working, but i had tested it internally and it worked perfectly. During attempts to get RWW working from the internet, i changed some IIS settings, but am 99% sure i have correctly reverted all settings (i did NOT delete any files).

Log file is also attached. Recent errors are Bottom of file (prior ones may be irrelevant due to login attempts while settings were altered).

Any advice greatly appreciated!

Charles

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Asked On
2009-10-01 at 17:16:46ID24778964
Tags

EBS 2008

,

RWW

,

OWA

,

SSO

Topic

Essential Business Server

Participating Experts
2
Points
500
Comments
10

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Answers

 

by: chokdiiPosted on 2009-10-01 at 20:14:27ID: 25474930

Did you install the certificate?

 

by: FreechoiceITPosted on 2009-10-01 at 21:33:20ID: 25475211

Hi,

Certificate is installed and working

Charles

 

by: chokdiiPosted on 2009-10-01 at 21:42:31ID: 25475240

Go into IIS and restart it. Test.
Then stop and start the default website hosting OWA.
Test.
Failing that check to see that OWA is bound to ASP.NEt 2.0 on the default website in IIS

 

by: FreechoiceITPosted on 2009-10-01 at 23:03:49ID: 25475461

Chok,

I did as you suggested, ASP.NET config was also correct, still no change:(

Charles

 

by: DNadon57Posted on 2009-10-13 at 23:21:20ID: 25567733

Hi Charles,

I noticed another posting here that may be related both to OWA and RWW problems you are encountering.  I was looking at RPC issues and discovered this ...

http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Server/Essential_Business_Server/Q_24152922.html

The person who posted the problem indicated he had issues with RWW redirect and SSO both which appear to be problems you are experiencing.   The solution was to disable RPC kernel-mode authentication on the Messaging server.

 

by: FreechoiceITPosted on 2009-10-14 at 17:39:50ID: 25576432

Hi There,

You seem to be everywhere! the EBS forums here would be a dismal failure without you and Keith!


I applied the fix that was suggested in your link, it didn't help. I wonder if this all comes back to the same root problem with Firewall configuration between servers. As you found - the firewall was disabled on the Security server when you reinstalled it, which makes sense. We are carrying out the reinstall of EBS this weekend, i will be interested to see if and when this problem happens again - i am SURE it worked as intended originally, then along with many things, suddenly stopped working.

I can only assume tasks i or the other techs considered unrelated, weren't so unrelated - EBS is a pretty tight ship afterall...

Advise soon:)

Charles

 

by: DNadon57Posted on 2009-10-14 at 22:58:54ID: 25577652

I agree about EBS being a beast when it breaks, it seems to break everything.  I call it a tightly coupled configuration because each piece is so dependent on the others doing their job.  I've always maintained that it's best to use the wizards for everything unless the experts from MS tell you different.  It's a challenge for me because after you've worked on systems as long as I have, you tend to go by instinct and read the books after the fact.  Experience has taught that being a "cowboy" isn't necessarily the smartest way to go.

I'm sure the re-install will fix it all for you and it'll teach you more about the systems as well.  Think of it as a good learning experience and document everything.  You'll soon realize it will become a good part of your DRP documentation.  I took screen shots of every single screen pretty much and documented all the issues and workarounds.  Now I have instructions detailed enough that a junior IT person could easily do the task.

When I first installed EBS, I didn't get time to play with it as much as I wanted because I was on a contract and had limited time.  The challenge for me was to succeed at the install and convert the sites entire IT infrastructure from a bunch of old Linux servers to a state of the art Windows setup.  As it is, I still have one old LInux server running a couple of web sites and an old Novell server with an old Advanced Revelations application and database to deal with, but they'll be gone shortly.

Meanwhile, I have to figure out why the EBS Administration console isn't getting updates from WSUS and the desktops.... It either hasn't contacted them in days and days or it thinks they need updates.  I thought I fixed that problem once already (sigh)  

 

by: FreechoiceITPosted on 2009-10-15 at 16:41:56ID: 25585904

Dan,

You are right, this has been a huge learning curve - we ran it in test environment for a good month, with half a dozen workstations attempting to simulate any problems that might arise. As you'd have it - it was flawless, the day we swapped over, the EBS machine started blue screening, so we backpedaled, addressed the problem (corporate AV was failing and running up infinite instances of its service).

From what little i saw of the WSUS console in SCE/EBS Admin, it is extremely uninformative compared to the standard WSUS MMC Snapin. While my WSUS was working, i still used the MMC snapin directly from my workstation to troubleshoot other problems. Maybe this approach will help you too.

I also frequently had many workstations reporting in with warnings, but i put that down to disobedient staff who manage to have their workstation offline when the updates are scheduled to install:)

 

by: DNadon57Posted on 2009-10-21 at 23:54:56ID: 25631377

Hi Charles,
I'm curious how things went.  Did you get the problem resolved?  As it happens, my RWW stopped working on the weekend for a number of my users, but not all of them.  2 of my 3 computers at home could not connect to RWW, for example.  I would get an "Internet Explorer cannot display the webpage" error.  A network trace showed the client machine attempting to do an SSL handshake with the server and then immediately disconnecting.  Eventually, I found the problem was the client machine and not the security server.  Even though the certificate manager said the cert was valid, the solution on the XP client was to delete the certificate and it re-installed automatically and worked after that.  I'm still trying to figure out how to delete the cert in Vista.
Assuming the replace mode install didn't resolve your problem, try deleting the certificate.  It should re-install automatically.  I also ran the fixit in this article but I don't think it did anything to resolve the problem.  Re-registering all of the security dll's on the client machine doesn't hurt, though.  I'm not sure of the cause of the problem but I suspect the replacement mode install had something to do with it.

 

by: FreechoiceITPosted on 2009-11-12 at 16:58:54ID: 31636191

Ultimately the problem was that somehow the windows firewall became enabled on Security server - though everything has been rebuilt from the ground up since anyway.

20120131-EE-VQP-002

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