One of load balancing for lamp based on NFS: experimental topology

Experimental Purpose:

Deploy the Discuz forum, use DNS for polling, achieve httpd load balancing and high availability, access the forum using the host named www.aaa.com

Topology:

Two server Deployment httpd+php (module mode), CentOS 6.8 system

192.168.1.102

192.168.1.103

One server deploys mariadb and the system is Centos7.2

192.168.1.200

One server deploys NFS, stores the Web site directory, realizes two httpd data synchronization, the system is CentOS 7.2

192.168.1.202

One server deploys bind9 and the system is Centos6.8

192.168.1.101

One of load balancing for lamp based on NFS: experimental topology