Post on 30-May-2018
transcript
8/9/2019 LPI 101 Ch01 Introduction
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Linux Professional Institute
Course
( LPI-Level 1)
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Chapter 1
Introduction
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Objectives
Answer the question : Why Linux ?
List some of the key companies using Linux today
Describe the Value Proposition associated with
Linux
Identify the conventions used throughout the
courseware
Identify the conventions used throughout the course
labs
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Why Linux ? (becomes popularly)
Linux is a source opened operating system (OS) with all thefeatures of other OSs
Its a very stable, quality, flexible OS being continually
developed by hundreds of thousands of independentprogrammers from around the world
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Companies using Linuxtoday
IBM
HP
Cisco
Sun Microsystems
Hitachi
Fujitsu
Sony
Amazon.com
and many more
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Whatcanthe Linuxdo ?
Linux is extremely valuable and is used in many ways. Its
deployed as a server, development or workstation with
emerging technologies :
Web Hosting
Softwares Development
File and Print services
Document Publishing
E-mail Servers
Database Servers
Network Routers And a host of otherworkstation applications,
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OtherConsiderations
Fragmentation
High cost
Vendor Dominance ?
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The Value Proposition
Reliability
Scalability
Security
ROI (Return On Investment) TCO (Total Cost ofOwnership)
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Reliability
You can easily manage the necessary workloads in todays
business environment
Linux machine can do as FTP server, Web server, Mail
server, DHCP server, DNS server, and run smoothly You do NOT need to rebootmachine after installing new
softwares or services
Linux machine has never been halted
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Scalability
The release of the 2.4 kernel can handle large business
workloads that once could only be addressed by closed,
proprietary platforms and solutions
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Security
The open source model allows for expert auditing and
self policing of code prior to release
When problems are found, fixes are developed and tested
by the group of worldwide programmers Viruses are almost non-existent on Linux
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ROI (Return OnInvestment)
The open source licensing model allows for no per unit fees
or licensing charges. This will significantly reduce IT
infrastructure expense when companies look to perform
company-wide software migrations and enable legacy
system integration
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TCO (TotalCostof Ownership)
Each Linux administrator can maintain a large number of
servers and clients. This reduces the total cost of ownership of
Linux versus Windows, Netware and other PC platforms
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Course Format
Structure : consist both LAB exercises and lecture
information.
Objectives : specify whatwhat students will achieve or able to
demonstrate as a result of our material.
Conventions : used to communicate different teaching points,
concepts and student interaction
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Conventions
All URLs are italicized
http://www.saigonlab.com
Command line (input) examples and computer output or
text contained in sample files are in Courier New font Keyboard keys we want you to use will look like this : Esc,
Backspace, Enter(Return),
Place holder for parameters will indicated by : < insert
parametershere >
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Introductionto LABs
Hands-on learning is an important part of knowledge
retention. Take your time and internalize process you
perform to complete particular task. Practice is important to
true understandingof the task at hand
Please read the questions and exercises carefully before
beginning (see AppendixA)
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LAB Conventions
When youre asked to enter a command, it will be written inthe form :
# command
Command may also be written in the form:# command # comment
# comment describes action or meaningof the command,
NOT a part of command
Control keys are shown by caret symbol and the required
leter. For example: ^C = Control + C
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Summary
Answer the question : Why Linux ?
List some of the key companies using Linux today
Describe the Value Proposition associated with Linux
Identify the conventions used throughout the courseware Identify the conventions used throughout the course labs