I am trying to setup a simple Linux Virtual System (LVS). The 1st layer is two Virtual Servers, the 2nd layer is two Real Servers and the 3rd layer is one PostgreSQL Server.

All data is on the third layer (PostgreSQL).

The Apache Server is running on the 2nd layer but it is supposed to retrieve data (Folders) from the 3rd layer servers (PostgreSQL).

I like to setup NFS server on the 3rd layer and NFS client on the 2nd (Apache) layer. I can’t figure out how to do it!

I have searched the Internet with no luck. I am sure many people on the CentOS community have done it. Can somebody point me to a ‘Howto..” or email me a procedure they have.

Thank you. Sorry for bad English.