smbd 

   A program responsible for managing the shared resources between the Samba server machine and it's clients.   It provides file, print and browser services to SMB

   clients across one or more networks.   smbd handles all notifications between the Samba server and the network clients.   In addition, it is responsible for user

   authentication, resource locking, and data sharing through the SMB protocol.

nmbd 

   A simple nameserver that mimics the WINS and NetBIOS nameserver functionality, as y ou might expect to encounter with the LAN Manager package.   

   This daemon listens for nameserver requests and provides the appropriate information when called upon.   

   It also provides browse lists for the Network Neighborhood, and participates in browsing elections as well.

nmblookup 

   A program that provides NetBIOS over TCP/IP name lookups

rpcclient 

   A Samba developer's tool that exercises the remote procedure call (RPC) interfaces of an SMB server

smbclient 

   An FTP-like Unix client that can be used to connect to Samba shares

smbpasswd 

   A program that allows an administrator to change the encrypted password used by Samba

smbsh 

   A shell that allows users to access files and directories on a remote Windows share as if the share were a regular Unix directory;

   available if Samba is compiled with the --with-smbwrappers option

smbstatus 

   A program for reporting the current network connections to the shares on a Samba server

smbtar 

   A program for backing up data in shares, similar to the Unix tar command

tcpdump 

   A version of the traditional Unix packet-tracing program taht has been enhanced to understand the SMB protocol

testparm 

   A simple program to validate the Samba configuration file

testprns 

   A program that tests whether various printers are recognized by the smbd daemon