Question

SSL Certificate not Updating

Asked by: felonyone

I just purchased a brand new certificate to replace my current SSL Certificate that expired over a year ago. Here was the process I followed:

1. Deleted the current certificate
2. Issued a new CSR
3. Obtained a new Cert from RapidSSL
4. Installed the new Cert into IIS for the Default Website

However, when I browse to the outlook web access at https://mail.domain.net it still gives me the Old certificate.

I verified that the new Certificate was installed by Viewing the Certificate under Directory Security in IIS.
I verified that the certificate being used matched what was in the IIS Metabase.xml file.
I also deleted the old Certificate from the machine using the Certificates MMC snapin.
I have even rebooted the machine.

Any help troubleshooting this issue would be appreciated. For whatever reason, the old certificate continues to be presented upon accessing the site.

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Asked On
2009-08-06 at 23:39:09ID24633969
Tags

Microsoft IIS

,

Exchange

,

Outlook Web Access

Topics

Secure Socket Layer (SSL) & HTTPS

,

Microsoft IIS Web Server

Participating Experts
4
Points
500
Comments
17

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Answers

 

by: WadskiPosted on 2009-08-07 at 05:21:18ID: 25041892

stop and start IIS.

 

by: felonyonePosted on 2009-08-07 at 07:23:33ID: 25042979

I restarted IIS prior to rebooting the machine. Both had no effect.

 

by: MesthaPosted on 2009-08-07 at 10:13:24ID: 25044940

How exactly did you delete the old certificate?
There was actually no need to do that. You simply go through the wizard to remove the old certificate, then create the new request.

Is there anything between Exchange and the internet? An ISA server? If the certificate has been removed from the server then the certificate is elsewhere, it could be in the browser or something else holding a copy.

Simon.

 

by: felonyonePosted on 2009-08-07 at 10:34:13ID: 25045136

I deleted the Old expired certificate first by Using the Wizard to remove the certificate from the server. The "View Certificate" button became grayed out as a result. I then used the Wizard again to issue a new CSR request.

Second, I used the Certificates MMC snap-in to delete the Old expired certificate as part of troubleshooting why machines are still receiving the Old certificate when attempting to access the website.

There is no ISA server in place.

When I go into IIS and view the Certificate currently installed for the Default Website, the new certificate is shown. However, for some reason beyond my understanding the old certificate is still presented when users access the site.

I've run the SSL Diag tool from Microsoft and there are no issues.

 

by: felonyonePosted on 2009-08-07 at 10:51:54ID: 25045313

Also note, I did all of the above using an admin account that is a member of the following groups:

Domain Admins
Domain Users
Enterprise Admins
Schema Admins

Does it matter if I didn't install the new certificate using the Domain Administrator account?

 

by: MesthaPosted on 2009-08-07 at 11:25:27ID: 25045605

Everything that you have done is correct. It doesn't matter what account you use, as long as it has permissions.

If the certificate has been removed from the SERVER certificate store then IIS cannot present it to the client. Therefore either the certificate is not coming from the server that you expect, it is being cached somewhere or a copy is stored locally.

Simon.

 

by: felonyonePosted on 2009-08-07 at 11:35:34ID: 25045697

Does anyone know where I could check for other references to the old certificate?

It just boggles my mind that users are pulling the old certificate from some unknown location.

 

by: lastlostlastPosted on 2009-08-07 at 13:18:04ID: 25046548

Mostly check all DC's in your environment... open the certificate console using MMC and remove all unwanted certificates...

 

by: MesthaPosted on 2009-08-07 at 16:51:41ID: 25047659

You need to look at the path the traffic is taking to see if anything could be caching it. Ensure the traffic is going to the server/virtual server that you are expecting.

Simon.

 

by: felonyonePosted on 2009-08-07 at 17:04:46ID: 25047690

Appreciate the tip Mestha but i'm not really sure how I would go about doing that. Could you be a bit more detailed if you don't mind?

 

by: Mike_CourtneyPosted on 2009-08-07 at 17:11:21ID: 25047701

Are you using any reverse proxies such as ISA

 

by: Mike_CourtneyPosted on 2009-08-07 at 17:13:06ID: 25047703

ignore that question you've already answered it

How do you know they're getting the old certificate

 

by: felonyonePosted on 2009-08-07 at 17:21:30ID: 25047722

I've tested accessing the website from machines that are on the network as well as off the network. I've also used different browsers to test it.

Basically, i just type in https://mail.domain.net in the address field and go to the site. I'm immediately presented with a warning stating the Site Certificate has expired. This occurs every time.

 

by: Mike_CourtneyPosted on 2009-08-08 at 00:02:55ID: 25048604

As stated earlier you use the certificates mmc snap in to look for old certificates, here you use the local computer option when prompted.

is your configuration for exchange front end back end or single server. do you have more than one front end server?

have you viewed the certificate on the exchange virtual directory rather than the site - I know if it's in one place it should be in all of them.

Have you tried a different client

 

by: felonyonePosted on 2009-08-08 at 00:37:53ID: 25048662

Yes, used the Certificates MMC Snapin and deleted the old certificate there. This is a single server Exchange.

The certificate shows properly in IIS manager for the Exchange virtual directory.

At this point I'm going to try having RapidSSL reissue the certificate and start the process from the beginning again. I just don't know what else to do.

 

by: felonyonePosted on 2009-08-11 at 11:35:27ID: 31614382

I did some digging into our environment and apparently someone setup a second exchange server for failover purposes. The old certificate was being served up from this second server for whatever reason. As soon as I installed the new certificate on that server the old one went away.

 

by: felonyonePosted on 2009-08-11 at 11:37:12ID: 25071956

As it would turn out, someone had setup a secondary exchange server for failover purposes. Obviously I didn't set this environment up originally, just more or less maintaining it. After some digging I discovered this second server, installed the new SSL certificate appropriately, and now the old one is gone.

Going to https://mail.domain.net no longer shows an expired certificate.

Thanks everyone for the insight and assistance.

20120131-EE-VQP-002

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