如何利用Nginx防止IP地址被恶意解析详解

yum install nginx  //安装nginx（centos）

//开机自启
systemctl enable nginx
systemctl disable nginx

//查看nginx状态
systemctl status nginx

//启动，停止，重启
systemctl start nginx
systemctl stop nginx
systemctl restart nginx

//重新加载配置
systemctl reload nginx

//配置文件的默认位置
/etc/nginx 主配置文件nginx.conf

 server {
      listen    80 default_server;
      server_name _;
      access_log  off;
      return    444;
    }

# For more information on configuration, see:
#  * Official English Documentation: http://nginx.org/en/docs/
#  * Official Russian Documentation: http://nginx.org/ru/docs/

user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
  worker_connections 1024;
}

http {
  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 /var/log/nginx/access.log main;

  sendfile      on;
  tcp_nopush     on;
  tcp_nodelay     on;
  keepalive_timeout  65;
  types_hash_max_size 2048;

  include       /etc/nginx/mime.types;
  default_type    application/octet-stream;

  # Load modular configuration files from the /etc/nginx/conf.d directory.
  # See http://nginx.org/en/docs/ngx_core_module.html#include
  # for more information.
  include /etc/nginx/conf.d/*.conf;
    server {
      listen    80 default_server;
      server_name _;
      access_log  off;
      return    444;
    }
  server {
    listen    80;
    server_name www.zkrun.top;
    location / {
        proxy_pass http://www.zkrun.top:8080;
    }

    error_page 404 /404.html;
      location = /40x.html {
    }

    error_page 500 502 503 504 /50x.html;
      location = /50x.html {
    }
  }

# Settings for a TLS enabled server.
#
#  server {
#    listen    443 ssl http2 default_server;
#    listen    [::]:443 ssl http2 default_server;
#    server_name _;
#    root     /usr/share/nginx/html;
#
#    ssl_certificate "/etc/pki/nginx/server.crt";
#    ssl_certificate_key "/etc/pki/nginx/private/server.key";
#    ssl_session_cache shared:SSL:1m;
#    ssl_session_timeout 10m;
#    ssl_ciphers HIGH:!aNULL:!MD5;
#    ssl_prefer_server_ciphers on;
#
#    # Load configuration files for the default server block.
#    include /etc/nginx/default.d/*.conf;
#
#    location / {
#    }
#
#    error_page 404 /404.html;
#      location = /40x.html {
#    }
#
#    error_page 500 502 503 504 /50x.html;
#      location = /50x.html {
#    }
#  }
}