Remove (revoke) a domain in Let’s Encrypt

I need to remove a Let’s Encrypt certificate from a domain no longer served from my server. In this example, I will use the www.mydomain.com domain.

I will remove it in 3 steps:

1. Backup.
2. Revoke the certificate.
3. Delete all files relating to the certificate.

Conventions

# – indicates that the command that follows must be executed with root permissions directly with the root user or with the sudo command.
$ – indicates that the following command can be executed by a normal user without administrative privileges.

Backup

First, I make a backup

# cp /etc/letsencrypt/ /etc/letsencrypt.backup -r

Revoke

Then I revoke the cert

# certbot revoke --cert-path /etc/letsencrypt/archive/www.mydomain.com/cert1.pem
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org

Delete the files

Finally, I delete all files relating to certificate www.mydomain.com

# certbot delete
Saving debug log to /var/log/letsencrypt/letsencrypt.log

Which certificate would you like to delete?
-------------------------------------------------------------------------------
1: www.domain1.com
2: www.domain2.com
3: www.mydomain.com
4: www.domain3.com
5: www.domain4.com
6: www.domain5.com
-------------------------------------------------------------------------------
Select the appropriate number [1-6] then [enter] (press 'c' to cancel): 3

-------------------------------------------------------------------------------
Deleted all files relating to certificate www.mydomain.com.
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