Command used on Debian Server with apache:
certbot certonly --key-type rsa --apache -d www.nchar.com -d vdi.nchar.com -d my.nchar.com
Resources:
https://www.virtualizationhowto.com/2020/06/install-vmware-horizon-7-lets-encrypt-ssl-certificate/
https://letsencrypt.org/docs/challenge-types/
https://certbot.eff.org/docs/using.html#getting-certificates-and-choosing-plugins