nginx编译安装时添加echo模块

1. 首先下载模块源码：https://github.com/agentzh/echo-nginx-module/tags
2. 解压到某个路径，假设为 /path/to/echo-nginx-module
3. 使用下面命令编译并安装 Nginx
$ wget 'http://sysoev.ru/nginx/nginx-1.0.11.tar.gz'
$ tar -xzvf nginx-1.0.11.tar.gz
$ cd nginx-1.0.11/# Here we assume you would install you nginx under /opt/nginx/.
$ ./configure --prefix=/opt/nginx \
--add-module=/path/to/echo-nginx-module$ make -j2
$ make install