Monday Presentation

LINUX FUNDAMENTALS

Hla Tun

Unix Basic

Linux Installation Management

File System

User and Group management

SSH

Topics

Unix Basic

Unix is an operating system name for time-sharing system

researched and developed by AT&T Bell Labs in 1969

Two Types of Unix :

- BSD (Berkeley Software Distribution)

- System V (System Five)

Unix Basic

Unix Layers :

- Unix consists of three parts:

1. Unix Kernel

2. Shell

3. Command Processes or Utilities

Linux Installation Management – CentOS

A Linux distribution that attempts to provide a free, enterprise-

class, community supported computing platform

A free version of RHEL, so it’s good if you want a stable platform

that will be supported for a long time

Linux Installation Management – CentOS

Hardware Requirement

Hardware Element

Hardware Compatibility Lists

Installation Methods (Media like CD/DVD, USB, etc..)

File System

User and Group Management

To control access to the system’s files, directories and peripherals

Root user has complete access to OS and its configuration

useradd –m –g[initial_group] –G[additional_groups] –s[login_shell]

[Username]

groupadd [groupname] –g[groupid]

User and Group Management

Secure Shell – (SSH)

Used to log into a remote machine and execute commands(replacing telnet and

rlogin

Default - TCP 22 port

Also support X11 connections (VNC)

Can transfer files using SSH File Transfer(SFTP) or secure copy(SCP) protocols

Secure Shell – (SSH)

Thanks for Listening