在线请问： connect() failed (111: Connection refused) while connecting to upstream

安装环境：openresty，php7，mysql，centos7 出现的问题：IP，ip ／ test.html 和 ip/50x.html 都显示正常，但是 ip/info.php 无法显示，并且无法进入安装程序目录。请问如何解决？

error.log 显示错误：

2018/06/09 09:46:56 [error] 825#825: *123 connect() failed (111: Connection refused) while connecting to upstream, client: 113.118.xxx.228, server: 173.255.247.37, request: "GET /info.php HTTP/1.1", upstream: "fastcgi://127.0.0.1:9000", host: "xxx.255.xxx.xxx"

目前 nginx.conf 的配置是：

user root; worker_processes 1;

#error_log logs/error.log;

#error_log logs/error.log notice;

#error_log logs/error.log info;

#pid logs/nginx.pid;

events { worker_connections 1024; }

http { include mime.types; default_type application/octet-stream;

#log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
#                  '$status $body_bytes_sent "$http_referer" '
#                  '"$http_user_agent" "$http_x_forwarded_for"';

#access_log  logs/access.log  main;

sendfile        on;
#tcp_nopush     on;

client_max_body_size 8m;    #允许客户端请求的最大单文件字节数
client_body_buffer_size 2m;  #缓冲区代理缓冲用户端请求的最大字节

#WAF

lua_shared_dict limit 50m;  #防 cc 使用字典，大小 50M
lua_shared_dict guard_dict 100m;
lua_shared_dict dict_captcha 70m;
lua_max_running_timers 1;
lua_package_path "/usr/local/openresty/nginx/conf/waf/?.lua";
init_by_lua_file "/usr/local/openresty/nginx/conf/waf/init.lua";
access_by_lua_file "/usr/local/openresty/nginx/conf/waf/access.lua";


#keepalive_timeout  0;
keepalive_timeout  65;

gzip  on;

server {
    listen       80;
    listen       127.0.0.1;
    server_name  173.255.xxx.xxx;
    
    #charset koi8-r;

    #access_log  logs/host.access.log  main;

    location / {

        root    html;
        index  index.html index.htm index.php;
    }


    location /phpmyadmin {
        alias /usr/share/phpMyAdmin;
        index index.php;
     }

   location ~ /phpmyadmin/.+\.php$ {
        if ($fastcgi_script_name ~ /phpmyadmin/(.+\.php.*)$) {
         set $valid_fastcgi_script_name $1;
        }
         include fastcgi_params;
         fastcgi_pass 127.0.0.1:9000;
         fastcgi_index index.php;
         fastcgi_param SCRIPT_FILENAME /usr/share/phpMyAdmin/$valid_fastcgi_script_name;
     }

   

    #error_page  404              /404.html;

    # redirect server error pages to the static page /50x.html
    #
    error_page   500 502 503 504  /50x.html;
    location = /50x.html {
        root   html;
    }

    # 这里新加的
    # PHP 脚本请求全部转发到 FastCGI 处理. 使用 FastCGI 协议默认配置.
    # Fastcgi 服务器和程序(PHP,Python)沟通的协议.
    location ~ \.php$ {
        # 设置监听端口
        fastcgi_pass   127.0.0.1:9000;
        # 设置 nginx 的默认首页文件(上面已经设置过了，可以删除)
        fastcgi_index  index.php;
        # 设置脚本文件请求的路径
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        # 引入 fastcgi 的配置文件
        include        fastcgi_params;
    }

    # proxy the PHP scripts to Apache listening on 127.0.0.1:80
    #
    #location ~ \.php$ {
    #    proxy_pass   http://127.0.0.1;
    #}

    # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
    #
    #location ~ \.php$ {
    #    root           html;
    #    fastcgi_pass   127.0.0.1:9000;
    #    fastcgi_index  index.php;
    #    fastcgi_param  SCRIPT_FILENAME  /document_root$fastcgi_script_name;
    #    include        fastcgi_params;
    #}

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    #
    #location ~ /\.ht {
    #    deny  all;
    #}
}


# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
#    listen       8000;
#    listen       somename:8080;
#    server_name  somename  alias  another.alias;

#    location / {
#        root   html;
#        index  index.html index.htm;
#    }
#}


# HTTPS server

server {
    listen  443 ssl http2;
    
    server_name  173.255.xxx.xxx;
    charset  utf-8;
  #  ssl on;
    default_type  text/plain;
    
   
   

   ssl_session_cache    shared:SSL:1m;
   ssl_session_timeout  5m;
   ssl_protocols TLSv1 TLSv1.1 TLSv1.2;

   ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE;
   ssl_prefer_server_ciphers  on;

   location / {
        root   html;
       index  index.html index.htm index.php;
    }

     location ~ /phpmyadmin/.+\.php$ {
        if ($fastcgi_script_name ~ /phpmyadmin/(.+\.php.*)$) {
         set $valid_fastcgi_script_name $1;
        }
         include fastcgi_params;
         fastcgi_pass 127.0.0.1:9000;
         fastcgi_index index.php;
         fastcgi_param SCRIPT_FILENAME /usr/share/phpMyAdmin/$valid_fastcgi_script_name;
     }

   location ~ \.php$ {
        # 设置监听端口
        fastcgi_pass   127.0.0.1:9000;
        # 设置 nginx 的默认首页文件(上面已经设置过了，可以删除)
        fastcgi_index  index.php;
        # 设置脚本文件请求的路径
        fastcgi_param  SCRIPT_FILENAME  $document_root$fastcgi_script_name;
        # 引入 fastcgi 的配置文件
        include        fastcgi_params;
    }

}

／ etc ／ php-fpm.d ／ www.conf 里面我改成了这样：

https://i.imgur.com/4ndyLWD.png

listen = /var/run/php-fpm/php-fpm.sock listen = 9000