Final answer:
To remove a Certbot certificate from an Ubuntu server, use the command 'sudo certbot delete', choose the certificate to be deleted, and confirm the deletion. Post-deletion, verify that your web server configurations do not contain references to the deleted certificate to prevent errors.
Step-by-step explanation:
To remove a certbot certificate on Ubuntu, you'll need to run a few commands from the terminal. Here's a step-by-step guide:
- Open the terminal on your Ubuntu server.
- Type sudo certbot delete and press Enter.
- You will see a list of all installed certificates. Type the number corresponding to the certificate you wish to delete, or type the domain name associated with the certificate.
- Confirm the deletion when prompted. This will remove the certificate files from your server.
It is also advisable to check your web server configuration files to ensure that there are no references to the removed certificate, as this could cause errors when restarting the server. If you find any, you should update the configuration accordingly.
Note that the above steps only remove the certificate from your server, but do not cancel or revoke it. If you need to revoke the certificate — for example, if the private key has been compromised — you can also use Certbot with the revoke argument and provide the certificate file you wish to revoke.