Today I did dry run on my server and then I’ve got a message below.
Congratulations, all renewals succeeded. The following certs have been renewed.
This means I don’t have any renewal issues related with ACME TLS-SNI-01 and my server willl not break for the next renewal, am I right?
Sorry for my bad question.
This is my first server. So I don’t have much of knowledge about handling server.
Yes, in that case you are good to go.
Confirm that Certbot is a sufficiently high version (0.28) as well:
Thank you for your comment.
I checked my cerbot version.
It was certbot 0.21.1.
Do I have to update this?
Yes, you should. There are a number of important changes since 0.21.1. You can find the instructions for doing so at https://certbot.eff.org .
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