NGINX 配置

 NGINX配置详解:http://blog.csdn.net/tjcyjd/article/details/50695922

Nginx主配置(默认虚拟主机)文件：/usr/local/nginx/conf/nginx.conf

添加的虚拟主机配置文件：/usr/local/nginx/conf/vhost/域名.conf
vim /usr/local/nginx/conf/nginx.conf

防止IP访问服务器   加在 http { } 里面     每个server｛｝都是写在http{}里面。

server
{
listen 80 default;
listen 82 default;
return 404;
}

vim /usr/local/nginx/conf/nginx.conf

（1）cpu有多少个核，就有几位数，1代表内核开启，0代表内核关闭
（2）worker_processes最多开启8个，8个以上性能就不会再提升了，而且稳定性会变的更低，因此8个进程够用了

参考：http://www.php230.com/set-worker-cpu-affinity-to-up-nginx-performance.html

user  www www;

worker_processes auto; //工作进程：数目。根据硬件调整，通常等于CPU数量或者2倍于CPU。
worker_cpu_affinity auto;

error_log  /home/wwwlogs/nginx_error.log  crit;

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;

events
    {
        use epoll;
        worker_connections 51200;  
       //每个进程允许的最多连接数根据硬件调整，和前面工作进程配合起来用，尽量大，但是别把cpu跑到100%就行。每个进程允许的最多连接数，
         理论上每台nginx服务器的最大连接数为。worker_processes*worker_connections
       
         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;   //设定通过nginx上传文件的大小

        sendfile   on;
        tcp_nopush on;

        keepalive_timeout 60;  // 连接超时时间 

        tcp_nodelay on;

        fastcgi_connect_timeout 600;
        fastcgi_send_timeout 600;
        fastcgi_read_timeout 600;
        fastcgi_buffer_size 128k;
        fastcgi_buffers 16 128k;
        fastcgi_busy_buffers_size 256k;
        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 image/jpeg 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].";

        #limit_conn_zone $binary_remote_addr zone=perip:10m;
        ##If enable limit_conn_zone,add "limit_conn perip 10;" to server section.

        server_tokens off;
        access_log off;

        upstream  phpbackend{
            server unix:/tmp/php-cgi.sock weight=100 max_fails=5 fail_timeout=5;
            server unix:/tmp/php-cgi-2.sock weight=50 max_fails=5 fail_timeout=5;
            keepalive 24;
         }


  server        //default的server被禁止IP访问了 
                {
                listen 80 default;
                listen 82 default;
                return 404;
                }
 server   //每个server代表一个虚拟主机
    {
        listen 80;
        listen 82;
        server_name admin.***.com sp.***.com sp.wt***.com newpic.***.com jiekou.***.com api.***.com pic.***.com;
        index index.html index.htm index.php;
        root  /home/wwwroot/default;

        #error_page   404   /404.html;
        #include enable-php.conf;


        location ~ /php_count {
                include fastcgi.conf;
                fastcgi_pass unix:/tmp/php-cgi.sock;
                access_log off;
        }

        location ~ [^/].php(/|$)
        {
            try_files $uri =404;
           # fastcgi_pass  phpbackend;
           fastcgi_pass  unix:/tmp/php-cgi.sock;
            fastcgi_index index.php;
            include fastcgi.conf;
            proxy_http_version 1.1;
            proxy_set_header Connection "";
        }


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

        location ~ .*.(js|css)?$
        {
            expires      12h;  location ~ /.
        {
            deny all;
        }

        access_log /home/wwwlogs/access.log;
        #access_log off;
        #log_not_found off;
    }
include vhost/*.conf;  //包含进 vhost目录下的所有虚拟主机  lnmp vhost add  添加进来的
}

        }
                

server
    {
        listen 80;
        listen 82;
        server_name www.***.cc www.***.com www.***.com www.***ske.com tg.ios***.cc www.ks***.com www.xiao***.com www.ws***.com img.***.com;
        index index.html index.htm index.php default.html default.htm default.php;
        root  /home/wwwroot/www.***888.com;

        include none.conf;
        #error_page   404   /404.html;
        #include enable-php.conf;
        location ~ [^/].php(/|$)
        {
            try_files $uri =404;
           # fastcgi_pass  phpbackend;
            fastcgi_pass  unix:/tmp/php-cgi.sock;
            fastcgi_index index.php;
            include fastcgi.conf;
        }

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

        location ~ .*.(js|css)?$
        {
            expires      12h;
        }

        location ~ /.
        {
            deny all;
        }

        access_log  /home/wwwlogs/www.xiaoya888.com.log;
        #access_log  off;
        #log_not_found off;
    }