`/etc/network/interfaces`
```
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

source /etc/network/interfaces.d/*

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
allow-hotplug eth0
iface eth0 inet dhcp
post-up /etc/network/if-up.d/cifs-mount

```

`/etc/network/if-up.d/cifs-mount`
```
#! /bin/sh
# Remount network dependant CIFS mounts when the eth0 interface comes up.

set -e

cat /etc/fstab | grep cifs | sed 's/\,\?noauto\,\?//' >/tmp/cifs-fstab
cat /tmp/cifs-fstab
mount -a --fstab /tmp/cifs-fstab
rm /tmp/cifs-fstab

exit 0

```

`/etc/fstab`
```
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
/dev/sda1               /               ext4            errors=remount-ro       0       1
/dev/sda5               none            swap            sw                      0       0
/dev/sr0                /media/cdrom0   udf,iso9660     user,noauto             0       0
//192.168.0.1/share     /mnt/share      cifs            noauto,credentials=/home/user/.smbcredentials,iocharset=utf8,sec=ntlm,file_mode=0777,dir_mode=0666,noperm       0       0

```

`/home/user/.smbcredentials`
```
username=WindowsUser
password=########

```