rpm可从官网下载镜像解压获得，推荐从http://mirrors.aliyun.com/centos/7/os/x86_64/Packages/下载
安装gcc
rpm -ivh mpfr-2.4.1-6.el6.x86_64.rpm
rpm -ivh cpp-4.4.7-23.el6.x86_64.rpm
rpm -ivh kernel-headers-2.6.32-754.el6.x86_64.rpm
出错示例：
去资源库下载=号前面的包，然后所有报错的一起安装
[root@localhost ~]# rpm -ivh glibc-2.12-1.212.el6.x86_64.rpm
error: Failed dependencies:
glibc-common = 2.12-1.212.el6 is needed by glibc-2.12-1.212.el6.x86_64
[root@localhost ~]# ^C
[root@localhost ~]# rpm -ivh glibc-common-2.12-1.212.el6.x86_64.rpm
error: Failed dependencies:
glibc = 2.12-1.212.el6 is needed by glibc-common-2.12-1.212.el6.x86_64
[root@localhost ~]# rpm -ivh glibc-2.12-1.212.el6.x86_64.rpm
error: Failed dependencies:
glibc-common = 2.12-1.212.el6 is needed by glibc-2.12-1.212.el6.x86_64
rpm -ivh glibc-2.12-1.212.el6.x86_64.rpm glibc-common-2.12-1.212.el6.x86_64.rpm glibc-headers-2.12-1.212.el6.x86_64.rpm glibc-devel-2.12-1.212.el6.x86_64.rpm
安装pcre
rpm -ivh pcre-devel-7.8-7.el6.x86_64.rpm
安装zlib
rpm -ivh zlib-devel-1.2.3-3.x86_64.rpm
安装nginx
tar -zxvf nginx-1.14.0.tar.gz
cd nginx-1.14.0
./configure
make
make install