sudo apt-get install cifs-utils nfs-common

In /etc/fstab:
//IP_ADDRESS/communum$	/media/COMMUN cifs dir_mode=0777,file_mode=0777,credentials=/root/.smbcredentials,iocharset=utf8,vers=1.0	0	0

In /root/.smbcredentials

me=Fab
username=p0000000XXXX
password=pass
Domain=domain_name