Aim: To host 2 certificates in the Apache configuration for the SAME HOST (domain), either of them is OK for communication at the same time. If Public key 1 is used by client then if it matches with either of the 2 Private keys, it should work.

Changing PORT is not possible for me.

Reason: We stuck in the situation where we are having an Overlap situation. For 30 days we have to use older certificate as well as newer because not 200 clients will setup Public key at the same time, it needs to be 2 weeks window for all to get to new key.

I know about 1 Certificate for Multiple Host situation, BUT I need the way to support Multiple Certificates for Single Host at the same time.

I need Apache config for the same.

I have no idea as well as no guidance is available online about it.