问NGINX SSL超时

EN

worker_processes  4;
error_log /var/log/nginx/error.log;
pid /var/run/nginx.pid;

events {
    worker_connections 1024;
    use epoll;
}

http {
    proxy_next_upstream error;
    charset utf-8;
    include mime.types;
    default_type application/octet-stream;
    access_log /var/log/nginx/access.log;
    keepalive_timeout 65;
    keepalive_requests 0;
    proxy_read_timeout 200;
    sendfile on;
    tcp_nopush on;
    tcp_nodelay on;
    gzip on;
    gzip_min_length 1000;
    gzip_proxied any;
    gzip_types text/plain text/css text/xml
               application/x-javascript application/xml
               application/atom+xml text/javascript;
    server{
            ### WEB Address ###
        server_name mydomain.com;


            ### SSL log files ###
            access_log /var/log/nginx/ssl-access.log;
    error_log /var/log/nginx/ssl-error.log;
    listen 443;

            ### SSL Certificates ###
    ssl on;
    ssl_certificate /etc/nginx/unified.crt;
    ssl_certificate_key /etc/nginx/ssl.key;
    keepalive_timeout    60;

            ### PROXY TO TORNADO ###
            location / {
        proxy_pass_header Server;
            proxy_set_header Host $http_host;
            proxy_redirect off;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Scheme $scheme;
            proxy_pass http://127.0.0.1:8889;
        }
  }
}