Command The samba-tool dns add command is used to add DNS records in Samba.
Parameters:
dc1: Specifies the Samba DNS server.
samba.private: The DNS zone.
fileserver01: The hostname for the new DNS record.
AAAA: Specifies that the record is for an IPv6 address.
2001:db8::190: The IPv6 address to be assigned to the hostname.
-U Administrator: Specifies the user performing the operation, in this case, the Administrator.
Usage: This command properly adds a forward DNS record for fileserver01 with the specified IPv6 address into the samba.private zone on the server dc1.
Reference:
Samba DNS Administration

In an Active Directory domain, the Domain Users group exists by default. This group includes all user accounts created in the domain and is commonly used for assigning permissions and rights to all users.
Reference:
Microsoft Docs - Active Directory Default Groups

Consistent Copy of LDB Files:
C . ldbbackup: The ldbbackup command is used to create a consistent copy of LDB files. LDB files are used by Samba to store data in a database format. The ldbbackup utility ensures that the data is copied in a consistent state, which is crucial for backup and recovery processes.
Reference:
Samba documentation on ldbbackup
General LDB management guides

hide unreadable: This smb.conf option ensures that only files and directories that the user has permissions to access are visible in the file share.
Functionality: When set to yes, files and directories that the user cannot read (due to permissions) will be hidden from their view.
Security and Usability: This helps in enhancing both security and usability by preventing users from seeing files they cannot access, reducing clutter and potential confusion.
Example Configuration:
[example_share] hide unreadable = yes
Reference:
Samba smb.conf Documentation

To connect to a share on a Windows server using the SMB3 protocol, the smbclient command with the --max-protocol option should be used. The --max-protocol option allows you to specify the highest SMB protocol version that should be used. Therefore, the correct command is smbclient --max-protocol SMB3 //fs1/Share.
Reference:
smbclient man page
Samba: smbclient Command Options