Welcome To Linux
Short Introduction With Operating System &
Networking With - Md. Taiseen Azam
What is an Operating System - OS!
An OS is the most important software that runs on a computer. It
manages the computer's Memory, Processes & all of its Software &
Hardware. It also allows you to Communicate with the computer,
without knowing how to Speak the Computer's Language. Without
an OS, a computer is useless.
For large systems, the OS has even greater Responsibility's &
Power's. It is like a traffic cop - it makes sure that Different
Program's & User's running at the same time. But don’t interfere
with each other. The OS is also responsible for Security, ensuring
that Unauthorized User's do not access the system.
What is Linux & why?
Linux is not an OS! It’s a kernel! So, What is a Kernel?
Kernel is a program, which is all time running in an OS!
It’s an interface between Hardware's & Software's. it’s a System Software.
Linux is an Open Source Project under GPL ( General Public License )
Linux is Highly Flexible, Reliable, Potable & Secure. It’s virus Free!
In Linux every things a File. Hardwar's, Drivers, Software's all are File's.
These are format-less simply-strings of characters File's. Easy to access.
An OS based on the Linux Kernel is called a - Distribution / Distro.
Short Introduction about Linux & Distro’s!
The Unix OS was created in 1969 at AT&T's Bell Laboratories in the United States by
Ken Thompson, Dennis Ritchie.
University of Helsinki - 22 year's student Linus Torvalds in 1991 first write source code
for Linux Kernel & give a name Freax ( a combination of "free", "freak" & the letter X
to indicate that it’s a Unix-like system ), but his friend Ari Lemmke is a administered
the FTP server where the kernel was 1st hosted for download, named directory Linux.
at 1980 in MIT AI Laboratory - Richard Stallman start Open Source Software Evolution.
They Need a OS but before need a Compiler. So he make a GNU C Complier ( GCC ),
Now they need a Kernel & create GNU HURD.
In 2004 - Mark Shuttleworth funding the development of Ubuntu, a Linux distribution
based on Debian, through his company Canonical Ltd.
Evolutionary Persons Are :
28/12/1969 - Finland 16/03/1953 - United States 18/09/1973 - South Africa
In Linux - CLI ( Command Line Interface ) is the best way for network
configurations, Because it’s have many help-full option in Server Environment
We use RedHat Distribution for networking configuration.
1st open CLI mode Or Terminal & type - nmcli ( Network Management CLI )