运行pythonweb程序在nginx 启动后 80 端口无法访问，pythonwebnginx,环境：阿里云 cento

运行pythonweb程序在nginx 启动后 80 端口无法访问，pythonwebnginx,环境：阿里云 cento

环境：阿里云 centos7

flask web 应用， gunicorn 已经启动，访问ip:8888正常访问

nginx 正常启动，无法直接访问 ip ，浏览器显示： This site can ’ t be reached

我有两个配置文件conf/nginx.conf, site-enable/kaoshixing.conf,内容分别如下：

user  root;worker_processes        auto;# worker_cpu_affinity     auto;error_log   /home/admin/kaoshixing/nginx/logs/error.log;pid         /home/admin/kaoshixing/nginx/logs/nginx.pid;worker_rlimit_nofile 65535;events {    use epoll;    worker_connections  20480;}http {    include       mime.types;    default_type  application/octet-stream;    fastcgi_intercept_errors on;    log_format milog '$server_addr\t$hostname\t$remote_addr\t$http_x_forwarded_for\t$time_local\t$request_uri\t$request_length\t$bytes_sent\t$request_time\t$status\t$upstream_addr\t$upstream_cache_status\t$upstream_response_time\t$http_user_agent\t';    ####full-format log for debug    log_format debug_log '$remote_addr\t$server_addr\t$hostname\t$time_local\t$host\t$request\t$status\t$body_bytes_sent\t$http_referer\t$http_user_agent\t$http_x_forwarded_for\t$request_uri\t$request_length\t$bytes_sent\t$request_body\t$request_time\t$upstream_response_time\t$upstream_addr\t$upstream_cache_status';    access_log  /home/admin/kaoshixing/log/nginx/access.log  milog;    sendfile        on;    keepalive_timeout  65;    client_max_body_size 120m;    server_names_hash_bucket_size 128;    proxy_headers_hash_bucket_size 128;    proxy_headers_hash_max_size 8192;    proxy_connect_timeout    10;    proxy_read_timeout       120;    proxy_send_timeout       120;    proxy_buffer_size        16k;    proxy_buffers            4 64k;    proxy_busy_buffers_size 128k;    proxy_temp_file_write_size 128k;    gzip on;    gzip_types application/json application/x-json text/plain application/x-javascript text/css text/javascript application/xml text/xml  image/jpeg image/gif image/png;    gzip_proxied     expired no-cache no-store private auth;    gzip_min_length 1k;    gzip_buffers 16 64k;    gzip_http_version 1.1;    gzip_comp_level 6;    gzip_vary on;    limit_req_zone $server_port zone=tp:500m rate=1700r/s;    limit_req_zone $server_port zone=tps:500m rate=1100r/s;    limit_req_zone $binary_remote_addr zone=tip:500m rate=100r/s;    include /home/admin/kaoshixing/nginx/site-enable/*.conf;}

*

upstream kaoshixing.com_backend{       server 0.0.0.0:8888 weight=1 max_fails=2 fail_timeout=30s;}server {   listen 80;   server_name  www.kaoshixing.com;   access_log /home/admin/kaoshixing/nginx/logs/ksxing.com.log milog;   location / {       proxy_set_header Host $host;       proxy_set_header X-Forwarded-For $remote_addr;       proxy_pass http://kaoshixing.com_backend;   }}server {       listen 443 ssl;       server_name www.kaoshixing.com;       access_log /home/admin/kaoshixing/nginx/logs/ksxing.com.log milog;       ssl on;       ssl_certificate         ssl/kaoshixing.com.crt;       ssl_certificate_key     ssl/kaoshixing.com.key;       ssl_session_cache  shared:SSL:80m;       ssl_session_timeout  5m;       ssl_protocols  SSLv2 SSLv3 TLSv1;       ssl_ciphers RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;       ssl_prefer_server_ciphers   on;       location / {               proxy_set_header Host $host;               proxy_set_header X-Forwarded-For $remote_addr;               proxy_pass http://kaoshixing.com_backend;               proxy_redirect http://www.kaoshixing.com https://www.kaoshixing.com;       }}server {   listen 80;   server_name  kaoshixing.com;   access_log /home/admin/kaoshixing/nginx/logs/ksxing.com.log milog;   location / {       rewrite ^(.*) http://www.$host$1 redirect;   }}

server {   listen 80 default_server;   server_name  www.kaoshixing.com;

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