Add new subdomain to main domain

[jguidos]

Hi all,

I am a new user in this community and using letsencrypt.

Yesterday I’ve created a certificate with these domains:

NOTE: I will use example.com instead the real domain.

• example.com
• www.example.com
• mail.example.com
• vpn.example.com

everything was good and It’s working fine!

My question is…

…Can I add a new subdomain to the same certificate???

I am new working with SSL certificates and I am not sure about this.

Thanks in advance!

[cool110]

Run the client again with all the subdomains and the --expand option to replace the existing cert.

[jguidos]

Thank you so much cool110 !!!