nginx配置详解

user  www www;   //nginx在运行时使用的账号的权限 

worker_processes auto; //开启进程数，cpu核数的1-2倍，查看cpu核数的值：cat /proc/cpuinfo

error_log  /home/wwwlogs/nginx_error.log;//日志文件好pid文件保存的目录

pid        /usr/local/nginx/logs/nginx.pid;//存储ngin进程的pid信息

worker_rlimit_nofile 51200;//最大值65535  一个工作进程最多打开的文件连接数,与worker_connections配置数相同

events
    {
        use epoll;//使用于Linux内核2.6版本及以后的系统。
        worker_connections 51200;//最大值65535，每一个子进程最大的连接数,总的最大连接数就应该是 进程数*这一项，受到linux系统的限制，
		默认情况linux限制每一个进程只能最大打开1024个文件（在linux下所有的东西都是一个文件），
		可以通过这个命令来设置：ulimit -a ,ulimit-SHn 65535
        multi_accept on;
    }

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

        server_names_hash_bucket_size 128;
        client_header_buffer_size 32k;
        large_client_header_buffers 4 32k;
        client_max_body_size 50m;

        sendfile   on;
        tcp_nopush on;

        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 on;
        gzip_min_length  1k;
        gzip_buffers     4 16k;
        gzip_http_version 1.1;
        gzip_comp_level 2;
        gzip_types     text/plain application/javascript application/x-javascript text/javascript text/css application/xml application/xml+rss;
        gzip_vary on;
        gzip_proxied   expired no-cache no-store private auth;
        gzip_disable   "MSIE [1-6]\.";

        server_tokens off;
       
        log_format  access  '$remote_addr - $remote_user [$time_local] "$request" '
             '$status $body_bytes_sent "$http_referer" '
             '"$http_user_agent" $http_x_forwarded_for';
		access_log off;
//一个网站
server
    {
        listen 80 default_server;
        #listen [::]:80 default_server ipv6only=on;
        server_name www.lnmp.org;
        index index.html index.htm index.php;
        root  /home/wwwroot/default;//网站目录

        #error_page   404   /404.html;//错误页面地址
        include enable-php.conf;

        location /nginx_status
        {
            stub_status on;
            access_log   off;
        }
        
        location ~ .*\.(gif|jpg|jpeg|png|bmp|swf)$
        {
            expires      30d;//缓存保存时间
        }

        location ~ .*\.(js|css)?$
        {
            expires      12h;//缓存保存时间
        }

        location ~ /\.
        {
            deny all;
        }
        
        access_log  /home/wwwlogs/access.log  access;//以access的格式保存日志文件
    }
include vhost/*.conf;//加载更多配置项
}