$ sudo mount -t nfs 192.168.1.76:myshare ~/mount3/

mount.nfs: access denied by server while mounting 192.168.1.76:myshare

$ sudo showmount -e 192.168.1.76

rpc mount export: RPC: Procedure unavailable

clnt_create: RPC: Unable to send

$ sudo mount -t nfs 192.168.1.76:myshare ~/mount3/

$ sudo mount -t nfs //192.168.1.76/myshare  ~/mount3/

#!/bin/sh -x

mountpoint="/home/user/mount3/mount"
if mount|grep ${mountpoint}; then
    echo lazy umounting
    sudo umount ${mountpoint} -l
fi

sudo pgkill.py -fq mount_cifs.sh
rm ${mountpoint}/keepalive


echo mounting
sudo mount -t cifs -o username=$2,password=$3,dir_mode=0777,file_mode=0777 $1 ${mountpoint}

if test $? -eq 0;then
    echo mounted
else
    echo unable to mount
    exit
fi
{ while true; do echo caca > ${mountpoint}/keepalive; sleep 30; done }&