续费ssl通配符证书:
certbot --manual --preferred-challenges dns certonly
NGINX配置:
ssl_certificate /etc/letsencrypt/live/qiql.net/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/qiql.net/privkey.pem;
ssl_trusted_certificate /etc/letsencrypt/live/qiql.net/chain.pem;