Hacker installed certificate on my Ubuntu install

Someone has installed a certificate on my Ubuntu server. How do I remove that?

More importantly, how in the heck did this happen? I’ve had the server about 24 hours. Not feeling really confident here.



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Accepted Answer

To clarify, I’m getting the error message: SSL_ERROR_BAD_CERT_DOMAIN

UPDATE: Turns out it’s not a hacker, just a hack… me.

I forgot to change the IP in my DNS record to the new server. Oops.

Thank you