前几天遇到一个比较难搞的CDN，想了半天还是做了反代。
1、 首先安装Nginx（随便怎么装都行）
sudo apt-get install nginx
2、 在/etc/nginx/nginx.conf中的http{}部分include一个vhost的conf，例如
http {
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
access_log /var/log/nginx/access.log;
error_log /var/log/nginx/error.log;
gzip on;
gzip_disable "msie6";
include /etc/nginx/conf.d/*.conf;
include /etc/nginx/sites-enabled/*;
include /etc/nginx/yoursite.conf; #在最后添加一行
}
3、 vhosts.conf的内容可以这样写
## Basic reverse proxy server ##
## backend for yoursite ##
upstream apachephp {
server 1.2.3.4; #源站IP
}
## Start yoursite ##
server {
listen 80; #监听端口
server_name yoursite.com; #绑定域名
root html;
index index.php;
## send request back to source ##
location / {
proxy_pass http://yoursite.com; #回源域名 稍后会讲一个小技巧
#Proxy Settings 按照实际需求修改以下参数
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_next_upstream error timeout invalid_header http_500 http_502 http_503 http_504;
proxy_max_temp_file_size 0;
proxy_connect_timeout 90;
proxy_send_timeout 90;
proxy_read_timeout 90;
proxy_buffer_size 4k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
}
## End yoursite ##
4、 重载Nginx
nginx -s reload
