Multiple certificates for domain name

I’m working on a caching solution which will perform a, sadly, what amounts to a man-in-the-middle attack on my own servers. (I guess since I’m doing it to myself, it really isn’t an attack, but still). Anyway, I’m wondering if I’m allowed to issue two certificates for the same domain. One would be stored in the caching server and one would be stored on the web server.

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Yes, you can. You can issue more than two, too.

You can also use the same certificate on both servers, if you prefer, but setting that up and automating it has its own challenges.

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Separate certs would probably renew easily.
For instance: one could use http auth and the other https auth.
Same name, same IP, but two separate “web servers” authentications.

I didn’t know if issuing a second certificate for the same domain would cause the first/original to become invalidated.

Thank you for clearing that up.

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