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Nginx 配置文件内容详细说明

时间:2015-01-25 20:10来源:linux.it.net.cn 作者:IT
#运行用户
user  www www;

#启动进程,通常设置为和cpu数量相等
worker_processes 1;

#错误日志
error_log  /home/wwwlogs/nginx_error.log  crit;

#PID文件
pid        /usr/local/nginx/logs/nginx.pid;

#Specifies the value for maximum file descriptors that can be opened by this process.
worker_rlimit_nofile 51200;

#工作模式及连接数上限
events
        {
                use epoll;#epoll是多路复用IO(IO multiplexing)中的一种,适用于linux2.6内核以上,可以大大提升nginx性能
                worker_connections 51200;#单个后台worker process进程的最大并发连接数
        }
#设定http服务器,利用他的反向代理功能提供负载均衡支持
http
        {
                #设定mine类型,由mine.types文件定义
                include       mime.types;
                #默认mine类型
                default_type  application/octet-stream;
                #设定日志格式
                access_log /usr/local/nginx/logs/access.log

                server_names_hash_bucket_size 128;
                #设定请求缓冲
                client_header_buffer_size 32k;
                large_client_header_buffers 4 32k;
                client_max_body_size 50m;

                #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 60;

                tcp_nodelay on;

                fastcgi_connect_timeout 300;
                fastcgi_send_timeout 300;
                fastcgi_read_timeout 300;
                fastcgi_buffer_size 64k;
                fastcgi_buffers 4 64k;
                fastcgi_busy_buffers_size 128k;
                fastcgi_temp_file_write_size 256k;

                #gzip开启
                gzip on;
                gzip_min_length  1k;
                gzip_buffers     4 16k;
                gzip_http_version 1.0;
                gzip_comp_level 2;
                gzip_types       text/plain application/x-javascript text/css application/xml;
                gzip_vary on;

                #limit_zone  crawler  $binary_remote_addr  10m;

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

    #设定负载均衡的服务器列表
     #upstream mysvr {
    #weigth参数表示权值,权值越高被分配到的几率越大
    #本机上的Squid开启3128端口
    #server 192.168.8.1:3128 weight=5;
    #server 192.168.8.2:80  weight=1;
    #server 192.168.8.3:80  weight=6;
    }
server
        {
                #监听端口
                listen       80;
                #定义使用www.dylan.com来访问
                server_name www.dylan.com;
                #定义首页所以文件的名称
                index index.html index.htm index.php;
                #定义本虚拟主机的默认网站根目录位置
                root  /home/wwwroot;

                #php 请求用fastcgi处理
                location ~ .*\.(php|php5)?$
                        {
                                try_files $uri =404;
                                fastcgi_pass  unix:/tmp/php-cgi.sock;
                                fastcgi_index index.php;
                                include fcgi.conf;
                        }

                #设定查看nginx状态的地址
                location /status {
                        stub_status on;
                        access_log   off;
                }

                location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
                        {
                                expires      30d;
                        }

                location ~ .*\.(js|css)?$
                        {
                                expires      12h;
                        }
                #设定本虚拟主机的访问日志
                access_log  /home/wwwlogs/access.log  access;
        }
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