Question

Is there a way to create a free 90days wildcard Ca certificate on ubuntu 18.04 ?

  • Posted November 13, 2019
  • Apache

I find my CA certificate is single domain certificate and it doesn’t support mail server. It looks like I need a wildcard Ca certificate. I searched on the google and find “https://certbot.eff.org/docs/using.html#dns-plugins”. Can you tell me how create a 90days wildcard CA certificate using certbot on the ubunutu18.04 ? Thanks a lot.

Subscribe
Share

Submit an answer
You can type!ref in this text area to quickly search our full set of tutorials, documentation & marketplace offerings and insert the link!

These answers are provided by our Community. If you find them useful, show some love by clicking the heart. If you run into issues leave a comment, or add your own answer to help others.

Hi @zhiweny1122,

I’ll assume you’ve actually installed certbot already so we can just continue with the actual configuration for installing a wildcard certificate.

Let’s say we have a test domain example.com. To actually install a wildcard for it, we’ll need to run the following command from the droplet

sudo certbot certonly --manual -d *.example.com -d example.com --agree-tos --no-bootstrap --manual-public-ip-logging-ok --preferred-challenges dns-01 --server https://acme-v02.api.letsencrypt.org/directory

This should be enough for the wildcard to be installed.

Regards, KDSys