Tag Archives: certificate

Exchange, Microsoft

Fix: Blank page when loading ECP on Exchange 2013

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On Exchange 2013 you might encounter a blank page after the login page of the Exchange ECP portal. The Login page will load without issues but when you login successfully, an empty blank page loads.

This could be due to the Default Website and Exchange Back End website do not have the same certificate. Sometimes this happens when you either change the certificate or renew it.

To solve this, open the Internet Information Services (IIS) Manager
Expand Sites
Right click on Default Website and click on Edit Bindings

From the list click on the https with the port 443 cnad click the edit button and confirm that you have the new cerficate selected and take note of it.

Right click on Exchange Back End site and click on Edit Bindings

From the list click on the https with the port 444 and click the edit button. Here make sure that you have the same certificate assigned and click close. In my case the certificate assigned was empty as the certificate was deleted.

Run IISReset from the command prompt as Admin

The ECP will now load.

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Microsoft, SQL

Fix: Cannot find server certificate with thumbprint while restoring SQL database

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When restoring a database you might get the below error.

System.Data.SqlClient.SQLError: Cannot find server certificate with thumbprint

This is because the database was encrypted with Transparent Data Encryption (TDE) and you will not be able to restore it until you get the Certificate, the Private key and the password from the supplier of the database.

After you collect the required items above, open a new SQL query as the server admin on the database master.

First we need to create the master cerificate on the server by using

USE master
GO
CREATE MASTER KEY ENCRYPTION BY PASSWORD = '<MyComplexPassword>'
GO

Now that the master certificate has been installed you will need to install the certificate provided by the owner of the database

CREATE CERTIFICATE MyServerCert
FROM FILE = 'C:\TDECert\Cert.cer'
WITH PRIVATE KEY (FILE = 'C:\TDECert\key.pvk',
DECRYPTION BY PASSWORD = '<PasswordProvidedByTheSupplier>');

Once this is done and executed you will be allowed to restore the database.

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