The main components of Samba

Samba is made of three daemons (smbd, nmbd and winbindd). There are two services (smb and winbind) that control the behaviour of daemons. smbd: The server message block daemon provides sharing and printing services over the network. It also controls resource locking, user authentication and data sharing through the SMB protocol. The Samba server listens for SMB traffic on the default TCP ports, 139 and 445. The smb service controls the behaviour of the smbd daemon. nmbd: This provides NetBIOS names over the network. It allows the browsing protocols to make up the Windows Network Neighborhood view. The Samba server listens for NMB traffic on the default UDP port 137. The smb service also controls the behaviour of the nmbd daemon. winbindd: This resolves user and group information on a server running Windows NT 2000 or Windows Server 2003. It renders Windows user/group information in a format that is understandable by UNIX platforms.