This document outlines a seminar presentation on Linux system administration certification (RHCSA/RHCE). The presentation covers topics such as what Linux is, features of Red Hat Enterprise Linux 6.4, user and file system management, logical volume management, server configuration, shell scripting, and text user interfaces. It provides an introduction to the RHCSA/RHCE certification and its focus on competencies for senior Linux system administrators. An agenda with timing is included, as well as conclusions about the benefits of Linux being an open source, customizable, portable, and stable operating system.

1. SEMINAR
ON
“LINUX SYSTEM
ADMINISTRATION
(RHCSA/RHCE)”
Presented By
G RAVEENA NAIR
Bachelor of Technology
(Computer Science
Engineering)
Final year (2012-2016)
Govt. Engineering
College
Jhalawar
Under Guidance of
MR. SACHIN PAL YADAV
Head of Department & Asst.
Professor
Computer Science Engineering
Govt.Engineering College
Jhalawar
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2. CONTENTS
• INTRODUCTION
• WHAT IS LINUX
• FEATURES OF RHEL 6.4
• USER MANAGEMENT
• FILE SYSTEM SECURITY
• LVM
• CONFIGURATION OF SERVERS
• SHELL SCRIPTING
• TUI
• CONCLUSION
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3. INTRODUCTION
• RHCSA/RHCE focuses on actual
competencies at system administration,
including installation and configuration of a
Red Hat Enterprise Linux system and
attaching it to a live network running network
services.
• The certification demonstrates the knowledge,
skill and ability required for senior system
administrator responsible for Red Hat
Enterprise Linux systems. 3

4. WHAT IS LINUX
LINUX(KERNEL)
.RPM .DEBIAN
• RHEL all versions
• FEDORA
• CentOS
• SUSE Linux
• MANDRIVA
• UBUNTU
• DEBIAN
• BACKTRACK
• KALI
LINUX IS NOTHING ELSE BUT A KERNEL WHICH IS OPEN SOURCE
OR FREE SOFTWARE AS IT BELONGS TO ENTIRE COMMUNITY OF
DEVELOPERS NOT ONE CORPORATE ENTITY
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5. LINUX’S PRINCIPLE
• Everything is a file or directory(Including
hardware).
• Small , single purpose programs.
• Ability to chain together programs to perform
complex tasks.
• Configuration data stored in text.
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6. FEATURES OF RHEL 6.4
• A New level of virtualization.
• Ext4 is made the default filesystem.
• Level of Security.
• SELinux(Security Enhanced Linux).
• New Networking Features .
• Use of Drivers.
• Support period provided by Red Hat.
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7. USER MANAGEMENT
There are three types of accounts in RHEL :
• Root
• Users
• Group Users
Operations performed are:
• Adding/Deleting users
• Adding/Deleting groups
• Assigning passwords to above
• Adding Members to group.
• Login into accounts.
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8. FILE SYSTEM SECURITY
• ALLOTING/REMOVING
PERMISSIONS ON FILE OR
DIRECTORY FOR OWNER,GROUP &
OTHERS.
• THREE TYPES OF PERMISSIONS:
• READ(r--)
• WRITE(-w-)
• EXECUTE(--x)
• CHANGING OWNER,GROUP OF
FILE/DIRECTORY.
• ACCESS CONTROL LIST.
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9. LVM
LVM is a tool for logical volume management which
includes allocating disks, striping, mirroring and
resizing logical volumes. With LVM, a hard drive or set of
hard drives is allocated to one or more
physical volumes. LVM physical volumes can be placed on
other block devices which might span two or more disks.
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10. LOGICAL VOLUME MANAGEMENT
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11. CONFIGURATION OF SERVERS
• In computer networks, a
configuration often refers to the
specific hardware and software
details in terms of devices
attached, capacity or capability,
and exactly what the system is
made up of.
• In networks, a configuration
often means the network
topology.
• The major servers on RHEL 6 :
• SSH
• FTP
• NFS
• SAMBA
• NIS
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12. SHELL SCRIPTING
• Puts LINUX commands in a file.
• Almost always special-purpose code.
• Often one-time code.
• Seldom used where speed is important.
• Often used to manipulate files.
• Shell program text is wriitenin a file using an
editor starting with:
#! /bin/sh
• A Sample program:
#!/bin/sh
# himike
name=Mike
echo "Hello, $name!"
exit 0
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13. TEXT USER INTERFACE(TUI)
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• A Text-user Interface processes events
from command-line interfaces that operate
sequentially.
• An advanced TUI may, like GUIs, use the
entire screen area and accept mouse input. A
TUI does not necessarily provide line-by-line
output.
• Although TUIs only use text,
symbols and colors available on a given text
environment.

14. A TEXT USER INTERFACE WINDOW
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15. CONCLUSIONS
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• A Growing technology.
• No threat of virus attacks.
• It comes with most of the soft wares pre-installed.
• Linux never gets slow.
• With this, we get a highest possible degree of
customizability.
• It is portable.
• Highly stable.
• Minimal hardware configuration.

16. THANK YOU..!!!!
ANY QUERIES…???
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