Example of Samba ACL changes from 4.10 to 4.11

shares.conf

[tank_active]
   browsable = yes
   read only = no
   guest ok = no
   valid users = @users

   path = /tank/active
   block size = 4096
   write cache size = 131072

smb.conf

# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options most of which
# are not shown in this example
#
# Some options that are often worth tuning have been included as
# commented-out examples in this file.
#  - When such options are commented with ";", the proposed setting
#    differs from the default Samba behaviour
#  - When commented with "#", the proposed setting is the default
#    behaviour of Samba but the option is considered important
#    enough to be mentioned here
#
# NOTE: Whenever you modify this file you should run the command
# "testparm" to check that you have not made any basic syntactic
# errors.


#======================= Global Settings =======================

[global]

## Browsing/Identification ###

# Change this to the workgroup/NT-domain name your Samba server will part of
   workgroup = POW

# server string is the equivalent of the NT Description field
   server string = %h server (Samba, Ubuntu)

# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable its WINS Server
   #wins support = no

# WINS Server - Tells the NMBD components of Samba to be a WINS Client
# Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
   ;wins server = w.x.y.z

# This will prevent nmbd to search for NetBIOS names through DNS.
   dns proxy = no

#### Networking ####

# The specific set of interfaces / networks to bind to
# This can be either the interface name or an IP address/netmask;
# interface names are normally preferred
   interfaces = lo vif-intra.2 vif-jumbo.2

# Only bind to the named interfaces and/or networks; you must use the
# 'interfaces' option above to use this.
# It is recommended that you enable this feature if your Samba machine is
# not protected by a firewall or is a firewall itself.  However, this
# option cannot handle dynamic or non-broadcast interfaces correctly.
   bind interfaces only = no

   disable netbios = yes

#### Debugging/Accounting ####

# This tells Samba to use a separate log file for each machine
# that connects
   log file = /var/log/samba/log.%m

# Cap the size of the individual log files (in KiB).
   max log size = 1000

# If you want Samba to only log through syslog then set the following
# parameter to 'yes'.
   #syslog only = no

# We want Samba to log a minimum amount of information to syslog. Everything
# should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
# through syslog you should set the following parameter to something higher.
   syslog = 0

# Do something sensible when Samba crashes: mail the admin a backtrace
   panic action = /usr/share/samba/panic-action %d


####### Authentication #######

# Server role. Defines in which mode Samba will operate. Possible
# values are "standalone server", "member server", "classic primary
# domain controller", "classic backup domain controller", "active
# directory domain controller".
#
# Most people will want "standalone sever" or "member server".
# Running as "active directory domain controller" will require first
# running "samba-tool domain provision" to wipe databases and create a
# new domain.
   server role = standalone server

# If you are using encrypted passwords, Samba will need to know what
# password database type you are using.
   passdb backend = tdbsam

   obey pam restrictions = yes

# This boolean parameter controls whether Samba attempts to sync the Unix
# password with the SMB password when the encrypted SMB password in the
# passdb is changed.
   unix password sync = no

# For Unix password sync to work on a Debian GNU/Linux system, the following
# parameters must be set (thanks to Ian Kahan <<kahan@informatik.tu-muenchen.de> for
# sending the correct chat script for the passwd program in Debian Sarge).
   passwd program = /usr/bin/passwd %u
   passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .

# This boolean controls whether PAM will be used for password changes
# when requested by an SMB client instead of the program listed in
# 'passwd program'. The default is 'no'.
   pam password change = yes

# This option controls how unsuccessful authentication attempts are mapped
# to anonymous connections
   map to guest = bad user


########## Domains ###########

#
# The following settings only takes effect if 'server role = primary
# classic domain controller', 'server role = backup domain controller'
# or 'domain logons' is set
#

# It specifies the location of the user's
# profile directory from the client point of view) The following
# required a [profiles] share to be setup on the samba server (see
# below)
   ;logon path = \\%N\profiles\%U
# Another common choice is storing the profile in the user's home directory
# (this is Samba's default)
   #logon path = \\%N\%U\profile

# The following setting only takes effect if 'domain logons' is set
# It specifies the location of a user's home directory (from the client
# point of view)
   ;logon drive = H:
   #logon home = \\%N\%U

# The following setting only takes effect if 'domain logons' is set
# It specifies the script to run during logon. The script must be stored
# in the [netlogon] share
# NOTE: Must be store in 'DOS' file format convention
   ;logon script = logon.cmd

# This allows Unix users to be created on the domain controller via the SAMR
# RPC pipe.  The example command creates a user account with a disabled Unix
# password; please adapt to your needs
   ;add user script = /usr/sbin/adduser --quiet --disabled-password --gecos "" %u

# This allows machine accounts to be created on the domain controller via the
# SAMR RPC pipe.
# The following assumes a "machines" group exists on the system
   ;add machine script = /usr/sbin/useradd -g machines -c "%u machine account" -d /var/lib/samba -s /bin/false %u

# This allows Unix groups to be created on the domain controller via the SAMR
# RPC pipe.
   ;add group script = /usr/sbin/addgroup --force-badname %g


############ Misc ############

# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
   ;include = /home/samba/etc/smb.conf.%m

# Some defaults for winbind (make sure you're not using the ranges
# for something else.)
   ;idmap uid = 10000-20000
   ;idmap gid = 10000-20000
   ;template shell = /bin/bash

# Setup usershare options to enable non-root users to share folders
# with the net usershare command.

# Maximum number of usershare. 0 (default) means that usershare is disabled.
   usershare max shares = 0

# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones
   usershare allow guests = no

# Don't load printers
   load printers = no
   printing = BSD
   printcap name = /dev/null
   disable spoolss = yes

# Filesystem features
   vfs objects = catia dirsort fruit streams_xattr
   fruit:copyfile = yes
   fruit:encoding = native
   fruit:locking = none
   fruit:metadata = netatalk
   fruit:resource = xattr

# Grumble grumble Finder grumble
   veto files = /.DS_Store/._*/.Trash/
   delete veto files = yes

# Use sync writes instead of or in conjunction with AIO (requires a fast SLOG
# device)
   strict sync = yes
   ;sync always = yes

# Allow clients to access extended attributes (xattr) stored in ZFS
   ea support = yes

# Enable large write support
   min receivefile size = 131072

# Locking (for Samba-only operation!)
   durable handles = yes
   kernel oplocks = no
   level2 oplocks = no
   kernel share modes = no
   posix locking = no

# Use ZFS ACLs to control who has access to what
   # This may seem superfluous with aclinherit=passthrough, but it changes the
   # behavior of Samba in a desirable way.
   inherit acls = yes
   # ACL masks (yes!) for files and directories
   create mask = 0664
   directory mask = 0775
   # Put DOS file modes in xattrs instead of using execute bits
   store dos attributes = yes

# Use custom script for ZFS df
   dfree command = /usr/local/bin/zfs-dfree
   dfree cache time = 60

# Hide inaccessible shares
   access based share enum = yes


#======================== Share Settings =======================

include = /etc/samba/shares.conf

terminal.sh

## parent directory

# owner: root
# group: root
user::rwx
group::r-x
group:users:rwx
mask::rwx
other::r-x
default:user::rwx
default:group::r-x
default:group:users:rwx
default:mask::rwx
default:other::r-x

## subdirectory created by user through macOS Finder via Samba 4.10.11

# owner: jade
# group: jade
user::rwx
group::r-x
group:users:rwx
mask::rwx
other::r-x
default:user::rwx
default:group::r-x
default:group:users:rwx
default:mask::rwx
default:other::r-x

## subdirectory created by user through macOS Finder via Samba 4.11.4

# owner: jade
# group: jade
user::rwx
user:jade:rwx			#effective:r-x
group::r-x
group:users:rwx			#effective:r-x
group:jade:r-x
mask::r-x
other::r-x
default:user::rwx
default:user:jade:rwx
default:group::r-x
default:group:users:rwx
default:group:jade:r-x
default:mask::rwx
default:other::r-x