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I renewed the SSL Cert for our OWA on a 2003 Exchange running on 2003 Windows Server. Ever since OWA is not acccessible. In the events log were are getting an SChannel Error Event 36871. Thank you in Advance for your help

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You need to have a cert with an associated private key in order for SSL to work. We’ve run into this issue many times for certs we’ve generated ourselves.

Below is an example of how to make the .pfx file with openssl (on linux assuming you have the key and crt files).

/usr/local/ssl/bin/openssl pkcs12 -export -in /tmp/your_certificiate_file.crt
-inkey /tmp/your_private_key.key -out /tmp/your_file_that_can_be_imported.com.pfx

Then just use security certificates MMC for local machine (on the owa server) to import the key into the local machine personal folder.

if you have the cert and no key file, you can generate the key like this:
/usr/local/ssl/bin/openssl genrsa 1024 > /tmp/newly_generated_key.key

and plug that in to the key section of the .pfx command line above.

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  • Tcor99
    Go to microsoft.com Technet and search for TLS/SSL Tools and Settings. This article describes steps to ensure proper certificate implementation and troubleshooting. Also, make sure that there were no MS updates applied between the time you generated a renew request to the time you installed the cert.
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