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Switch to wildcard SSL cert with certbot

If you want to switch from using a regulair certificate/certificates to using Let's Encrypt's new wildcard cert there are some things you still neeed to do, here is a simple command that should suffice:

sudo certbot certonly --cert-name -d *, --server --manual --preferred-challenges=dns

Certbot will walk you trough the verfication using DNS which currently is the only option with wildcard support, you'll need to add two TXT record for verification.

Good luck!

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