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KB450445 – Setting Up Windows Active Directory Authentication SMB Shares

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  • KB450445 – Setting Up Windows Active Directory Authentication SMB Shares

Scope/Description

  • This article will show how to configure SMB shares to allow access via Windows Domain Authentication and handle permissions via Windows ACLs.

Prerequisites

  • SMB Packages Installed
  • SMB Services Running and Enabled
  • SMB Ports Open on Firewall (133/tcp, 445/tcp and 137/udp, 138/udp)
  • Joined to an Active Directory if using Windows ACLs to manage share permissions.
  • Domain Group(s) that will handle assigning share permissions via Windows ACLs given SeDiskOperatorPrivilege permission.

Steps

Domain Authentication Access Share

  • For a basic Domain Authentication Access share, we must first ensure the permissions are set correctly on the directory we are sharing out.
  • The directory must be set to 770 by doing chmod 770 /path/to/share for permissions, and the owner user/group is set as root:DOMAIN\Domain Group by doing chown root:DOMAIN\Domain Group where Domain Group is an Active Directory group that will handle the assigning of permissions via Windows ACLs.
  • Once we have this completed, we can then utilize a share configuration similar to below to allow access, and assigning of permissions on the share through the use of Windows ACLs.
  • Note that selecting the Windows ACLs option within the File Sharing module adds the vfs objects and other parameters to the share automatically.
  • To ensure full use of Windows ACLs, ensure the owner group is given the SeDiskOperatorPrivilege so they can then modify and manage the SMB share permissions using Windows ACLs.
[samba-windows-acls]
map acl inherit = Yes
path = /tank/samba-windows-acls
read only = No
vfs objects = acl_xattr
acl_xattr:ignore system acl = yes

Verification

  • We can now access our SMB shares using our Windows Active Directory Domain Credentials.

Troubleshooting

  • Ensure there are no typos within your share configuration parameters.
  • Ensure your system is already joined to your Windows Active Directory.

Further Reading

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