# /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>
# / was on /dev/sda5 during installation
UUID=e3b61e88-08ba-49ba-971b-03decafa7108 /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda6 during installation
UUID=3b38ab52-eeec-49e7-8faf-fb096180db5e none            swap    sw              0       0
#
//192.168.178.1/Gue-Fritz /home/gue/Fritz cifs defaults,users,username=gue,password=xxxxxxxx 0 1
#
//192.168.178.24/S116ACD /home/gue/S116ACD cifs defaults,users,credentials=/home/gue/.smbcredentials,dirmode=0700,uid=1000,gid=1000  0 0
#
#//192.168.178.50/NAS-BU/gue /home/gue/NAS-BU cifs credentials=/home/gue/.smbcredentials,dirmode=0700,uid=1000,gid=1000  0 0
#

und in .credentials steht

username=gue
password=xxxxxxxx
domain=S116ACD