申请 Let`s Encrypt 通配符 SSL 证书

# 下载 Certbot 客户端
wget https://dl.eff.org/certbot-auto

# 设为可执行权限
chmod a+x certbot-auto

./certbot-auto certonly  -d "*.emotionl.fun" --manual --preferred-challenges dns-01  --server https://acme-v02.api.letsencrypt.org/directory