Nmap scan for NFS Shares (Portmapper , rpcbind)
nmap -v -p 111 X.X.X.1-254
Nmap find services that may have registered with rpcbind
nmap -sV -p 111 --script=rpcinfo X.X.X.1-254
Mount public NFS shares
mkdir /tmp/share sudo mount -t nfs -o vers=3 <ip>:<share> /tmp/share/ -o nolock