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Assigning Exchange 2016 and 2013 Certificate To Multiple Servers At The Same Time

In Exchange 2010, the Exchange Management Console allowed us to import certificates to multiple servers and to then assign the certificate to multiple servers simultaneously.  In the Exchange 2013 and Exchange 2016 EAC, the option to enable the certificate for Exchange services is per server.

As you can seen in the Exchange 2016 example below, we need to select each server one by one from the drop … Read the rest “Assigning Exchange 2016 and 2013 Certificate To Multiple Servers At The Same Time”

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Renewing Exchange 2010 Certificate Using Exchange Management Console

Renewing certificates breaks down into the following main sections

  1. Create Certificate Signing Request
  2. Send Certificate Signing Request to the Certification Authourity to be signed
  3. Complete Certificate Signing Request
  4. Install certificate on additional servers
  5. Bind Services to newly completed certificate

 

As always, ensure that the names you have specified on the CAS namespace design are included. Th… Read the rest “Renewing Exchange 2010 Certificate Using Exchange Management Console”

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Important Upcoming Certificate Changes

Please be aware that there is a pending change for the minimum key length for certificates with RSA keys.  The private keys used in these certificates can be derived and could allow an attacker to duplicate the certificates and use them fraudulently to spoof content, perform phishing attacks, or perform man-in-the-middle attacks.

 

 

The update is available on the Download Center as well as… Read the rest “Important Upcoming Certificate Changes”

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Custom Certificate Template Cannot be Issued

At an engagement yesterday, I ran into an interesting issue where a custom certificate template that was created was unavailable from the Certificate Services Web Enrolment page.

One quick peek into the KB revealed a match for the issue. 

You cannot have a Version 2 custom template of Type Minimum Windows 2008 Supported CA to be Available via Web Enrolment in Windows 2008

In Windows 2008, when yo… Read the rest “Custom Certificate Template Cannot be Issued”