Network+ Tutorial Oct-11

What is daemon ?
Pronounced "demon."

è is a program

è A UNIX program that executes in the background ready to perform an
operation when required. ( like start up program , print spooler etc )

è Functioning like an extension to the operating system

è A daemon is usually an unattended process that is initiated at startup.

è Few example are:- print spoolers and e-mail handlers or a scheduler that starts
up another process at a designated time.



What is agent ?

è is a software ( about same as daemon )

è A software routine that waits in the background and performs an action when a
specified event occurs.

è For example, agents could transmit a summary file on the first day of the
month or monitor incoming data and alert the user when a certain transaction
has arrived.

è Agents are also called "intelligent agents," "personal agents" and "bots."


What is SMB ?
(Server Message Block) è protocol

è is a file sharing protocol

è is a file sharing ptotocol in a DOS, Windows or OS/2 network.

è SMB originated with the NetBIOS protocol used in early DOS networks.

What is Samba ?
==>software
(SaMBa)

è is a Software

è is a software that allows a UNIX server to act as a file server to Windows
workstation.

è This free software is used in Unix based system .
è This software allow Unix based system to communicate with or share file with
Other type of operation system like window based system

è Samba make Unix based system to share file with window based system

è Samba is a free, open source implementation of the SMB file sharing protocol
( Samba work with SMB for file sharing between Unix workstation and Window
Workstation )

è is used in DOS/Windows and runs under Linux,



è To make client to access server , we need to use TCP/IP protocol to establish
the connection .

è Therfore SMB ( shared file protocol ) need to work with TCP/IP in order to
share file between client and server .

è Client can be window based and Server can be Unix based.

è Samba ( software ) & SMB ( protocol ) , both work together to make client to
share file with server .

è Samba is installed in Unix .

è SMB is a share file protocol used by window based or DOS based .


Why need Samba & SMB ?

è In order for Unix Server to have a SHARED FILE with Window workstation,
the UNIX SERVER need to have SAMBA ( software ) + SMB ( protocol ) to be
installed in order to communicate with Window workstation .

è Samba act as file server ( software ) , SMB act as shared file protocol .


What is BIND ?
(BIND) (Berkeley Internet Name Domain)

è DNS Server’s software

èThe most widely used DNS server software.


What is CIFS ?
(Common Internet File System)

è Function same as SMB . Mainly on Internet

è An enhanced version of the SMB file sharing protocol for the Internet.

è It allows Web applications to share data over the Internet and intranets

è CIFS supports file sharing only and NOT for printer sharing.