TLS-SNI-01 end-of-life

I currently use certbot 0.29.1 to manage my certificates. I received the email regarding TLS-SNI-01 validation reaching its end-of-life. If I understand things correctly, certbot will not be an option in the future. What other options exist for me and what are the steps I need to take to setup my new client.

My domain is:

I ran this command:

It produced this output:

My web server is (include version): nginx/1.11.9 though a docker container

The operating system my web server runs on is (include version): CentOS Linux release 7.2.1511 (Core)

My hosting provider, if applicable, is: Own server with full access.

I can login to a root shell on my machine (yes or no, or I don’t know): yes

I’m using a control panel to manage my site (no, or provide the name and version of the control panel):

You can certainly continue to use Certbot. You just need to make sure it's updated to a recent version:

certbot version

and if necessary, make sure your certificate renewal works with the HTTP validation method:

certbot renew --dry-run --preferred-challenges http

If you are on the latest Certbot version, the TLS-SNI challenge will automatically not be used.

If you can't update to the latest, you can update your /etc/letsencrypt/renewal/ file(s) with:

pref_challs = http-01
1 Like

Thanks that helped clarify what needs to be done

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