ulimit -SHn 65535  
yum install pcre pcre-devel -y 安装pcre  
 
wget http://labs.frickle.com/files/ngx_cache_purge-1.4.tar.gz   
tar zxvf ngx_cache_purge-1.4.tar.gz  
wget http://nginx.org/download/nginx-1.0.11.tar.gz   
tar zxvf nginx-1.0.11.tar.gz  
cd nginx-1.0.11/  
./configure --user=www --group=www --add-module=../ngx_cache_purge-1.4 --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_ssl_module  
make && make install  
cd ../

user www www;  
worker_processes 8;  
error_log /data/logs/nginx/error.log crit;  
pid /usr/local/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;  
 
proxy_temp_path /data/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天没有被访问的内容自动清除，硬盘缓存空间大小为30GB。  
proxy_cache_path /data/proxy_cache_dir levels=1:2 keys_zone=cache_one:200m inactive=1d max_size=30g;  
 
upstream backend_server {  
server 192.168.5.130:8080 weight=1 max_fails=2 fail_timeout=30s;  
server 192.168.5.131:8080 weight=1 max_fails=2 fail_timeout=30s;  
}  
 
server  
{  
listen 80;  
server_name www.jbxue.com 192.168.8.220;  
index index.html index.htm;  
root /data/webapps/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;  
}  
 
location ~ /purge(/.*)  
{  
#设置只允许指定的IP或IP段输入正确的密码才可以清除URL缓存。  
auth_basic “Please Insert User And Password”;  
auth_basic_user_file /usr/local/nginx/conf/htpasswd;  
allow 127.0.0.1;  
allow 192.168.1.0/24;  
deny all;  
proxy_cache_purge cache_one $host$1$is_args$args;  
}  
 
location ~ .*\.(php|jsp|cgi)?$  
{  
proxy_set_header Host $host;  
proxy_set_header X-Forwarded-For $remote_addr;  
proxy_pass http://backend_server;  
}  
log_format access ‘$remote_addr – $remote_user[$time_local] “$request” ‘  
‘$status $body_bytes_sent “$http_referer” ‘  
‘”$http_user_agent” $http_x_forwarded_for’;  
access_log /data/logs/nginx/access.log access;  
  }  
}

# /usr/local/nginx/sbin/nginx

http://192.168.8.220/purge/