若你的项目需要用到负载均衡、反向代理、静态文件服务器等功能，赶快入手nginx，她能超轻量级的完成你所需功能；现我们开始第一步安装 nginx： http://nginx.org/ （以下讲解环境使用centos，其他环境安装方式大同小异）
$ wget http://nginx.org/download/nginx-1.8.0.tar.gz # 下载相应版本nginx
$ tar -zxvf nginx-1.8.0.tar.gz [-C <dir>] # 解压[指定目录]
$ cd nginx-1.8.0
$ ./configure --prefix=/usr/local/nginx # prefix指定安装目录
安装过程出现的错误解析：
# 错误 1
checking for C compiler ... not found
./configure: error: C compiler cc is not found
分析/解决：不存在C编译环境，安装即可：yum install gcc (如果不存在C++编译环境，使用命令安装即可: yum install gcc-c++)
# 错误 2
./configure: error: the HTTP gzip module requires the zlib library.
You can either disable the module by using --without-http_gzip_module
option, or install the zlib library into the system, or build the zlib library
statically from the source with nginx by using --with-zlib=<path> option.
分析/解决：不存在zlib library；安装即可：yum install -y zlib-devel
# 错误 3
./configure: error: the HTTP rewrite module requires the PCRE library.
You can either disable the module by using --without-http_rewrite_module
option, or install the PCRE library into the system, or build the PCRE library
statically from the source with nginx by using --with-pcre=<path> option.
分析/解决：缺少PCRE library; 那下载源码安装PCRE library即可(注意下载的是prce而不是prce2)，下载解压安装：
$ cd pcre-{version}
$ ./configure
$ make && make install
当然你也可以使用命令： yum install pcre
# 错误 4
./configure: error: the HTTP cache module requires md5 functions
from OpenSSL library. You can either disable the module by using
--without-http-cache option, or install the OpenSSL library into the system,
or build the OpenSSL library statically from the source with nginx by using
--with-http_ssl_module --with-openssl=<path> options.
分析/解决： 缺少OpenSSL library; 安装：yum install openssl openssl-devel
# 错误5
nginx: [emerg] bind() to 0.0.0.0:9000 failed (48: Address already in use)
解决：地址(端口)已经被使用，修改端口重新加载nginx（nginx -s reload）;有可能是需要root用户启动，可以尝试
# 错误6
nginx: [emerg] open() "/usr/local/nginx/logs/nginx.pid" failed (13: Permission denied)
解决： 没有权限，使用root用户启动
根据nginx源码安装延伸
. configure # 该文件是软件作者或机构提供的shell脚本，用于初始化软件安装必需环境
. make # 编译源码，生成Makefile
. make install # 读取Makefile中的指令，开始安装
若文章阐述有误，欢迎指正；我会及时修正，以误他人！