Certbot failed to update certificate solution

CertBot Failed to update the certificate

It is commonly nginx Open question . I used to start nginx Corresponding 81 Port processes are kill fall . Now when multiple domain names are found to be updated , Another domain name is not good .

So the solution , Turn off all current nginx process .

service nginx stop

Pay attention to start CertBot If the following error occurs ：

Another instance of Certbot is already running.

Then use the following command to close the currently running Certbot process .

sudo find / -type f -name ".certbot.lock" -exec rm {
    } \;

And then execute the command .

certbot renew --force-renewal

This time it was a success .