Certificates of ISE

Hello guys,.

I have an environment with two nodes of admin/monitoring(ISEA-1, ISEA-2) and tow nodes of NHP (ISEB-1, ISEB-2).

My certificate exires in a month, so I need to change this as soon as possible.

I need to know if it is possible to generate the new certificate (using a third party CA) using current CSR, can I?

I have a problem because it?

I tried to create some other CSR using the CN even and I got the error "this certificate already exists."

Thank you

Rafael

Generally speaking, the answer is: Yes, you can use existing with other AC CSR, unless the new Board has some additional requirements that are not in the existing CSR.

On the other hand, you can safely remove the existing CSR without affecting the production environment. In addition, you can use a third-party tool like openSSL to generate a new CSR. Once the CSR is signed, you can import the certificate with the private key to your ISE servers. You can then change the settings so that the servers are using the new certificates (reboot will be requested if used for the HTTP/HTTPS service).

Thank you for evaluating useful messages!

Tags: Cisco Security

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