参考文档：
CentOS 7.4源码安装Cacti 1.1.26监控Linux主机图文详解
https://www.linuxidc.com/Linux/2018-03/151649.htm
CentOS7.5安装Cacti1.1.38
https://blog.csdn.net/networken/article/details/81567337
官方安装文档： https://docs.cacti.net/manual:088:1_installation.1_install_unix
安装服务并配置