$ sudo mkdir -p /export/Public101
$ sudo chmod -R 777 /export
$ cd /mnt/data
$ sudo mkdir Public101
$ sudo chmod -R 770 Public101/
$ sudo chgrp -R users Public101/
$ sudo mount --bind /mnt/data/Public101 /export/Public101
$ sudo service nfs-kernel-server restart

$ sudo chmod +x /mnt
$ sudo mount -t nfs -o proto=tcp,port=2049 192.168.60.101:/ /mnt
$ cd /mnt/Public101/
$ cd /mnt/Public101/
bash: cd: /mnt/Public101/: Permission denied
$ ll /mnt
total 12
drwxrwxrwx  3 root root  4096 Mar 22 14:46 ./
drwxr-xr-x 25 root root  4096 Dec 30 14:58 ../
drwxrwx---  2 root users 4096 Mar 22 14:49 Public101/
$ showmount -e 192.168.60.101
Export list for 192.168.60.101:
/export/Public101 192.168.60.0/24
/export           192.168.60.0/24

#Local Share
/mnt/data/Public101     /export/Public101       none    bind    0       0

# NFS imports
192.168.60.101:/        /mnt    nfs     auto    0       0

pete@pm01:/mnt/data$ cat /etc/exports
# /etc/exports: the access control list for filesystems which may be exported
#               to NFS clients.  See exports(5).
# exports
/export 192.168.60.0/24(rw,fsid=0,insecure,no_subtree_check,sync)
/export/Public101
192.168.60.0/24(rw,nohide,insecure,no_subtree_check,sync)

$ mount
192.168.60.101:/ on /mnt type nfs4
(rw,relatime,vers=4.0,rsize=1048576,wsize=1048576,
namlen=255,hard,proto=tcp,timeo=600,retrans=2,
sec=sys,clientaddr=192.168.60.102,
local_lock=none,addr=192.168.60.101)