目前的configuration是：
server { listen 80 default_server; listen [::]:80 default_server; listen 443 ssl default_server; listen [::]:443 ssl default_server; listen 192.168.0.5:80 default_server; listen 192.168.0.5:443 ssl default_server; ssl_protocols TLSv1 TLSv1.1 TLSv1.2; ssl_certificate /usr/share/nginx/default/ssl/default.crt; ssl_certificate_key /usr/share/nginx/default/ssl/default.key; server_name _; root /usr/share/nginx/default/www/; index index.php index.html; error_log /usr/share/nginx/default/log/error.log; access_log /usr/share/nginx/default/log/access.log combined; error_page 404 /404.html; error_page 403 /403.html; error_page 500 502 503 504 /50x.html; recursive_error_pages on; location = /404.html { internal; } location = /403.html { internal; } location = /50x.html { internal; } location ~ /\. { deny all; access_log off; log_not_found off; } location ~ \.php$ { try_files /1a9fa3dd0cfcb3bfa9827857c25d35d7.htm @php; } location @php { try_files $uri =404; fastcgi_pass 127.0.0.1:9000; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; include fastcgi_params; } } 当有https呼叫时，在浏览器validation证书有效或甚至可用之前，服务器redirect到HTTP协议。
只要提出这个条件
if ($ssl_protocol = "") { return 301 http://$server_name$request_uri; }