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I have used Let's Encrypt to allow me to set up SSL/HTTPS on my server.
The issue is that I run a number of sub-domains too, which I included on the initial install, but looking back now - the certificate details show that it was issued to one of my sub-domains.
I'm wanting to change this to my base domain, but I'm just not sure how to do this.
I have tried running letsencrypt-auto --apache -d example.me -d www.example.me -d mysql.example.me
This went through the process but did not change anything, as the certs are already issued.
How can I change the certificates now, or reissue them so that they are issued to my base domain?
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Changing the domain name for your SSL certificate is not possible. If you need an SSL for a different domain name, the only option is to have a brand new SSL installed.
You definitely will need a domain name in order to use Let's Encrypt, but you might be able to get a name through Synology automatically as a subdomain of synology.me , which is one thing that a lot of users have done; could you check with Synology's support or documentation about that possibility?
Select Change the site that your certificate protects. Select Move your certificate to one of your hosted domains, and then select the domain name you want to use. Select Change to a different domain and enter the common name you want to use for the certificate. Select Add Change.
In your CertCentral account, in the left main menu, go Certificates > Domains. On the Domains page, select New Domain. In the box, enter the domain name the certificates will secure. In the dropdown, select the organization you want to assign the domain to.
You can simply force renewal:
./certbot --apache -d example.me -d www.example.me -d mysql.example.me --force-renewal
Reference: https://community.letsencrypt.org/t/change-base-domain-name-for-lets-encrypt-ssl-certificate-in-certbot/16955/2
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