Renewal certificate HTTPS in Cisco ISE
Hello
A few months ago a renewed our certificate for eap. Now, I must renew the HTTPS certificate. ISE said that there will be a 'significant' downtime, the renewal of the certificate.
What exactly is this judgment? Cannot authenticatie users through EAP / RADIUS? Or is that what the web interface? I can't find any documentation on this topic.
Kind regards
Michael Trip
The only downtime, you can expect the renewal of the HTTPS certificate is:
1. for changes to HTTPS protocols, a restart of the ISE services is required, which creates a few minutes of downtime. You will not be able to access the GUI round 10-15 minutes.
2. If you are using a self-signed certificates in a distributed deployment, the primary self-signed certificate must be installed in the approved certificate of the secondary server ISE store. Similarly, the secondary self-signed certificate must be installed in the approved certificate of the server main ISE store. This allows the ISE server to mutually authenticate each other. The deployment might break. If you renew certificates from a third-party certification authority, check if the root certificate chain has been changed and update the store of certificates approved in the ISE as a result.
Here is the document containing the same steps. I have highlighted for your convenience.
Rgds,
Jousset
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Tags: Cisco Security
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