How to fix TLS-SNI deprecation


I’ve just followed the instructions on this thread (, as I’m in the same boat as dbnawrocki.

After updating my Ubuntu box I ran "sudo certbot renew --dry-run and got a “Congratulations, all renewals succeeded”. It looked to be using http-01 challenge?

Does this mean the situation is now resolved?



Hi @tenjin

check the nex renew of your certificate, if that works.

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