Installing a Windows server CA signed certificate into ISE 2.4

Step 1: Download your Root CA certificate, depending on your setup this step may vary

  • In this example my certificate authority will be my home labs windows 2008 server, it is assumed that you have access to a CA server  or signed CA certificate already

Step 2: ISE use .pem format for its certificates, the Windows CA cert is a .cer format so we are required to changed the format, to do this I  will be using Openssl as I am using a Apple MAC which comes standard if using windows you will required to download the file.

  • In Terminal or what ever application you are using go to the location of where you have stored the certificate and enter the  following command

“openssl x509 -inform der -in cacert.cer -out isecacert.pem”

Step 3: Import the signed CA cert into ISE

  • Click on administration>system>certificates>trusted certificates
    • Click on Import

Screen Shot 2019-10-28 at 12.15.55 pm.png

  • Select the CA certification “isaca.pem”
    • Once  CA Certificate has been selected, clicked on the following 3 boxes to support EAP-TLS based authentication
    • Click submit

Screen Shot 2019-10-28 at 12.16.32 pm.png

Click submit.

Screen Shot 2019-10-28 at 12.17.02 pm.png

The Windows  server CA certificate will now appear in the Trusted Certificates list.

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