Centos7内核版安装nginx环境问题及解决方法，

Centos7内核版安装nginx环境问题及解决方法，

错误信息：./configure: error: C compiler cc is not found
解决方案：yum -y install gcc gcc-c++ autoconf automake make

错误信息：./configure: error: the HTTP rewrite module requires the PCRE library.
解决方案：yum -y install pcre-devel openssl openssl-devel

netstat安装：yum -y install net-tools