nginx 配置文件例子

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第二种配置（网上摘取）

worker_processes 8;    error_log /usr/local/webserver/nginx/logs/nginx_error.log crit;    pid /usr/local/webserver/nginx/nginx.pid;    #Specifies the value for maximum file descriptors that can be opened by this process.   worker_rlimit_nofile 65535;    events   {   use epoll;   worker_connections 65535;   }    http   {   include mime.types;   default_type application/octet-stream;    charset utf-8;    server_names_hash_bucket_size 128;   client_header_buffer_size 32k;   large_client_header_buffers 4 32k;   client_max_body_size 300m;    sendfile on;   tcp_nopush on;    keepalive_timeout 60;    tcp_nodelay on;    client_body_buffer_size 512k;   proxy_connect_timeout 5;   proxy_read_timeout 60;   proxy_send_timeout 5;   proxy_buffer_size 16k;   proxy_buffers 4 64k;   proxy_busy_buffers_size 128k;   proxy_temp_file_write_size 128k;    gzip on;   gzip_min_length 1k;   gzip_buffers 4 16k;   gzip_http_version 1.1;   gzip_comp_level 2;   gzip_types text/plain application/x-javascript text/css application/xml;   gzip_vary on;    #注：proxy_temp_path和proxy_cache_path指定的路径必须在同一分区   proxy_temp_path /data0/proxy_temp_dir;   #设置Web缓存区名称为cache_one，内存缓存空间大小为200MB，1天清理一次缓存，硬盘缓存空间大小为30GB。   proxy_cache_path /data0/proxy_cache_dir levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=30g;    upstream backend_server {   server 192.168.8.43:80 weight=1 max_fails=2 fail_timeout=30s;   server 192.168.8.44:80 weight=1 max_fails=2 fail_timeout=30s;   server 192.168.8.45:80 weight=1 max_fails=2 fail_timeout=30s;   }    server   {   listen 80;   server_name www.yourdomain.com 192.168.8.42;   index index.html index.htm;   root /data0/htdocs/www;    location /   {   #如果后端的服务器返回502、504、执行超时等错误，自动将请求转发到upstream负载均衡池中的另一台服务器，实现故障转移。   proxy_next_upstream http_502 http_504 error timeout invalid_header;   proxy_cache cache_one;   #对不同的HTTP状态码设置不同的缓存时间   proxy_cache_valid 200 304 12h;   #以域名、URI、参数组合成Web缓存的Key值，Nginx根据Key值哈希，存储缓存内容到二级缓存目录内   proxy_cache_key $host$uri$is_args$args;   proxy_set_header Host $host;   proxy_set_header X-Forwarded-For $remote_addr;   proxy_pass http://backend_server;   expires 1d;   }    #用于清除缓存，假设一个URL为http://192.168.8.42/test.txt，通过访问http://192.168.8.42/purge/test.txt就可以清除该URL的缓存。   location ~ /purge(/.*)   {   #设置只允许指定的IP或IP段才可以清除URL缓存。   allow 127.0.0.1;   allow 192.168.0.0/16;   deny all;   proxy_cache_purge cache_one $host$1$is_args$args;   }    #扩展名以.php、.jsp、.cgi结尾的动态应用程序不缓存。   location ~ .*\.(php|jsp|cgi)?$   {   proxy_set_header Host $host;   proxy_set_header X-Forwarded-For $remote_addr;   proxy_pass http://backend_server;   }    access_log off;   }   }   

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