之前拿到过一台服务器，给了一个管理IP和一个解析IP，解析IP是属于F5 的一个代理，可以让外部访问更加安全，其实很早就知道 F5 这家纳斯达克的上市公司，所以学习一下 F5 BIG-IP 这款产品：
F5 Networks, Inc. is a global company that specializes in application services and application delivery networking (ADN). F5 technologies focus on the delivery, security, performance, and availability of web applications, as well as the availability of servers, cloud resources, data-storage devices, and other networking components. F5 is headquartered in Seattle, Washington, with additional development, manufacturing, and sales/marketing offices worldwide.
什么是 BIG-IP：
一套 BIG-IP 的系列课程：
朋友给过来的中国科学技术馆的网络架构图，有4台F5：
