certbot certonly \ --server https://acme-v02.api.letsencrypt.org/directory \ --manual \ --preferred-challenges dns \ -d 'xiehang.com,*.xiehang.com'
certbot certonly \ --server https://acme-v02.api.letsencrypt.org/directory \ --manual \ --preferred-challenges dns \ -d 'xiehang.com,*.xiehang.com'