Nginx配置文件分析

#user  nobody;

#启动进程数，即启动ngnix服务的个数，通常设置和cpu的数量相等
worker_processes  1;

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

#nginx进程ID
#pid        logs/nginx.pid;

events {

    #单个后台worker process进程的最大并发链接数
    # 并发总数是 worker_processes 和 worker_connections 的乘积
    # 即 max_clients = worker_processes * worker_connections
    worker_connections  1024;
}


http {

    #设定mime类型,类型由mime.type文件定义

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


    #访问日志格式
    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';
    
    #当前虚拟机的访问日志
    #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，
    #功能是优化文件拷贝，提高web sever性能
    #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;

    #keepalive 维持http连接时间
    #keepalive_timeout  0;
    keepalive_timeout  65;

    #默认情况下，gzip压缩是关闭的，该功能是面向客户端的， gzip压缩功能是减少带宽，但会增加服务器CPU的开销，Nginx默认只对text/html进行压缩 ，如果要对html之外的内容进行压缩传输，我们需要手动来调。
    #gzip  on;

    #配置虚拟主机
    server {
    
        #虚拟主机端口
        listen       8098;
        #虚拟主机域名
        server_name  localhost;

        #字符编码
        #charset koi8-r;
        #访问日志
        #access_log  logs/host.access.log  main;

        #代理
        location / {
            root   source/electric;
            index  index.html index.htm;
            proxy_pass  http://myapp; #代理地址，指向上面的myapp
        }

        #404错误提示页
        #error_page  404              /404.html;

        #服务端错误提示页   
        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        ########以下是配置php代理############
        # 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;
        #}
    }

    #一个ngxin可以配置多个虚拟主机，配置同上
    # 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;
    #    }
    #}

    ##############配置https server##############
    # 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;
    #    }
    #}

}