Correct steps to add another domain to existing certificate

[schoen]

@omega1

As this is on a production server, I’d like to know what the correct command would be to simply add another domain to an existing, working SSL cert that will point to the same directory. I’d rather have the correct command than “trying” things and making a mistake on a live server.

Hi @omega1,

The way to add a domain with Certbot is to reissue the certificate with a complete list of all of the names that should be covered in the new certificate. There's no command that adds a domain without the need to respecify the old names.

The different commands that you're using have very different strategies and effects that are totally unrelated to the effort to add a domain. I would suggest consulting the documentation to decide which approach you want to use (for example --standalone and --apache are doing quite different things). Then, you can issue a certificate that covers all of the names that you want using that approach.

In your post you described encountering errors from some Certbot commands but you said you don't remember what the errors were. If you post the specific errors here, we can try to explain what they mean and what can be done about them. Again, this is probably not related to your effort to add a domain.