sudo apt install samba smbclient
sudo smbpasswd -a user

[home]
browseable = yes
writable = yes
path = /home/xxxx
valid users = xxxx
guest ok = no
read only = no

[www]
browseable = yes
writable = yes
path = /var/www
valid users = xxxx
guest ok = no
read only = no

no e in browsable or writable.

Important at the end of SAMBA install to type.  A reboot won’t do it.

systemctl enable smb.service
systemctl enable nmb.service
systemctl start smb.service
systemctl start nmb.service

I have verified that the Fortinet 60E is fully protecting the server including SSL Deep Inspection for the web servers.