To mount nfs you must configure nfs server to give access to client .
Example mount nfs folder from linux to linux where is :
[root@server]# mount -t nfs server_ip/nfs /mnt/nfs
To automate mounting add this line to /etc/fstab
file :
192.168.1.100:/mnt/nfs /mnt/nfs nfs rw,rsize=4096,wsize=4096,soft,intr,sync 0 0