How to setup NFS/Autofs
Server Config Files:
/etc/exports
Example: /mountpoint client hostname/ip(rw,sync)
NFS has to be running on the server. Do not run autofs for the client on the server.
Client Config Files:
/etc/auto.master
This is an automounter map and it has the following format key [ -mount-options-separated-by-comma ] location. For details of the format look at autofs. mounts done from a hosts map will be mounted with the "nosuid" and "nodev" options unless the "suid" and "dev" options are explicitly given.
Example: /foo /etc/auto.foo --timeout=600
/etc/auto.foo
Example: foo -rw,sync server hostname/ip:/foo
NFS and autofs both have to be running on the client. NFS first, then autofs in that order.
http://www.redhat.com/docs/manuals/linux/RHL-7.3-Manual/custom-guide/s1-nfs-mount.html
Both systems must have the opposite server/client hostname or IP in the following:
/etc/hosts.allow
Example: Server /etc/hosts.allow ALL : client hostname or ip
Example: Client /etc/hosts.allow ALL : server hostname or ip