# ----------------------------------------------------
# 本文件是 nginx-1.14.0 的默认配置文件
# 我对一些重要参数加了中文注释
# ----------------------------------------------------

# 运行用户
#user  nobody;

# 启动进程,通常设置成和 CPU 的数量相等
worker_processes  1;

# 全局错误日志
#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

# PID 文件，记录当前启动的 nginx 的进程 ID
#pid        logs/nginx.pid;

# 工作模式及连接数上限
events {
    worker_connections  1024; #单个后台 worker process 进程的最大并发链接数
}

# 设定 http 服务器，利用它的反向代理功能提供负载均衡支持
http {
    # 设定 mime 类型(邮件支持类型),类型由 mime.types 文件定义
    include       mime.types;
    default_type  application/octet-stream;

    # 设定日志格式
    #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 指令指定 nginx 是否调用 sendfile 函数（zero copy 方式）来输出文件，对于普通应用，
    # 必须设为 on,如果用来进行下载等应用磁盘 IO 重负载应用，可设置为 off，以平衡磁盘与网络 I/O 处理速度，降低系统的 uptime。
    sendfile        on;
    #tcp_nopush     on;

    # 连接超时时间
    #keepalive_timeout  0;
    keepalive_timeout  65;

    # gzip 压缩开关
    #gzip  on;

    # 设定实际的服务器列表
    server {
        # 监听 80 端口，80 端口是知名端口号，用于HTTP协议
        listen       80;

        # 定义使用的访问域名（host）
        server_name  localhost;

        # 编码格式
        #charset utf-8;

        #access_log  logs/host.access.log  main;

        # 反向代理的路径（和 upstream 绑定），location 后面设置映射的路径
        location / {
            root   html;
            index  index.html index.htm;
        }

        #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;
        }

        # 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  /scripts$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;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

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

}