The SMB protocol (Server Message Block) is used for providing shared access to files and printers.

Historically, SMB ran on top of NetBIOS over TCP/IP using port 139.

SMB can also run directly over TCP/IP without the NetBIOS layer, which uses port 445.

Therefore, TCP port 445 is used to provide the SMB protocol without NetBIOS.

References

Official IANA port numbers: https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml

Microsoft documentation on SMB: https://docs.microsoft.com/en-us/windows/win32/fileio/microsoft-smb-protocol-and-cifs-protocol-overview

samba-tool domain provision: This command sets up Samba 4 as an Active Directory Domain Controller.

Process:

Run samba-tool domain provision to start the setup.

Follow the prompts to specify the domain name, administrator password, and other required information.

Outcome: This command initializes the Samba server as a new domain controller for a new domain, configuring the necessary services and databases.

References

Samba Active Directory Domain Controller

The smbclient command is used to access shared resources on a network that uses the SMB (Server Message Block) protocol. To list the available SMB shares on a remote Samba server, the correct invocation is smbclient -L <</b> server_name > . Here, -L stands for "list" and <</b> server_name > is the name of the Samba server. Therefore, smbclient -L FileSrv1 will list all the available SMB shares on the server named FileSrv1.

References

smbclient man page

Samba: smbclient Command