Linux.Study.Guide.-.Systems.Administrators.-.FEDORA.REDHAT.SUSE.LPI.CERTIFICATION.CERTIFIED.ENGINEER.LINUX.+.PLUS.pdf

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*100072*
*100072*
COIT 13146
Systems Administration
(An Introduction to Linux Systems
Administration)
Study Guide
Systems Administration
Edition 2003
ã
Copyright (Study Guide) Central Queensland University, 2003
Developed by staff of the Faculty of Informatics and Comminication.
Produced and printed by the Distance and Flexible Learning Centre
Central Queensland University
Rockhampton, Queensland
Copyright material herin is reproduced under the provision of the
Copyright Act 1968.
Material copied with the permission of thecopyright holder has been duely identified
DEVELOPED BY
David Jones, Kieren Jamieson, Damien Clark, Nathaniel
Fitzgerald-Hood and Anthony Ferguson
Chapter
............................................................................................................................................................................. 19
The Overview................................................................................................................................................................................ 19
Introduction ................................................................................................................................................................................... 19
Other Resources ............................................................................................................................................................................ 19
The Course .................................................................................................................................................................................... 20
L
AMENT OF A
L
INUX
S
TUDENT
.................................................................................20
T
HE RATIONALE
........................................................................................................21
W
HAT YOU WILL LEARN
............................................................................................21
W
HY NOT
W
INDOWS
?...............................................................................................23
Course Material ............................................................................................................................................................................. 23
S
TUDY
G
UIDE
...........................................................................................................24
T
HE
C
OURSE
W
EBSITE
..............................................................................................24
Solving Problems .......................................................................................................................................................................... 24
Computers in the Real World ........................................................................................................................................................ 24
W
HAT YOU THINK COMPUTERS ARE
..........................................................................24
S
OME ALTERNATIVES
................................................................................................26
An Overview of Linux................................................................................................................................................................... 28
B
OOTING
...................................................................................................................28
R
UNNING
..................................................................................................................29
S
HUTTING DOWN
.......................................................................................................30
L
AYERS
.....................................................................................................................30
Conclusions ................................................................................................................................................................................... 32
Chapter
............................................................................................................................................................................. 33
The What, Why and How of Sys Admin ....................................................................................................................................... 33
Introduction ................................................................................................................................................................................... 33
What Systems Administrators do .................................................................................................................................................. 33
W
HY WE NEED THEM
................................................................................................34
W
HAT THEY DO
.........................................................................................................34
Home and the real world ............................................................................................................................................................... 37
What Systems Administrators need to know ................................................................................................................................. 37
Why UNIX? .................................................................................................................................................................................. 39
Unix past, present and future ......................................................................................................................................................... 40
Linux ............................................................................................................................................................................................. 40
The relationship between Linux and UNIX ................................................................................................................................... 41
Some more sys admin theory......................................................................................................................................................... 41
Daily operations ............................................................................................................................................................................ 42
A
UTOMATE
,
AUTOMATE AND AUTOMATE
.................................................................42
S
YSTEM MONITORING
...............................................................................................42
Hardware and software.................................................................................................................................................................. 43
E
VALUATION
............................................................................................................43
P
URCHASE
.................................................................................................................44
I
NSTALLATION
..........................................................................................................44
H
ARDWARE
...............................................................................................................44
D
OCUMENTATION
.....................................................................................................45
Policy ............................................................................................................................................................................................ 48
P
ENALTIES
................................................................................................................48
T
YPES OF
P
OLICY
......................................................................................................48
C
REATING POLICY
.....................................................................................................48
Code of ethics................................................................................................................................................................................ 49
SAGE-AU
CODE OF ETHICS
......................................................................................49
SAGE-AU
CODE OF ETHICS
......................................................................................49
People skills .................................................................................................................................................................................. 50
C
OMMUNICATING WITH
U
SERS
.................................................................................50
H
OW NOT TO COMMUNICATE WITH USERS
.................................................................53
Conclusions ................................................................................................................................................................................... 53
Chapter
............................................................................................................................................................................. 54
Information Sources and Problem Solving .................................................................................................................................... 54
Introduction ................................................................................................................................................................................... 54
Other resources.............................................................................................................................................................................. 54
Information sources....................................................................................................................................................................... 54
Professional organisations ............................................................................................................................................................. 55
T
HE
SAGE
GROUPS
..................................................................................................55
S
AGE
-
AU
...................................................................................................................55
UNIX U
SER GROUPS
.................................................................................................56
T
HE
ACS, ACM
AND
IEEE......................................................................................56
Books and magazines .................................................................................................................................................................... 56
B
IBLIOGRAPHIES
.......................................................................................................57
O'R
EILLY BOOKS
.......................................................................................................57
M
AGAZINES
..............................................................................................................57
Internet resources .......................................................................................................................................................................... 57
T
HE COURSE WEBSITE
...............................................................................................57
H
OW TO USE THE
I
NTERNET
......................................................................................58
S
OFTWARE ON THE
I
NTERNET
...................................................................................58
D
ISCUSSION FORUMS
................................................................................................58
J
UST THE
FAQ
S
........................................................................................................59
G
OOGLE
....................................................................................................................60
M
AILING LISTS
..........................................................................................................60
O
THER DISCUSSION FORUMS
.....................................................................................60
I
NTERNET BASED
L
INUX RESOURCES
........................................................................62
Problem solving............................................................................................................................................................................. 63
G
UIDELINES FOR SOLVING PROBLEMS
.......................................................................63
E
XAMPLES OF SOLVING PROBLEMS
...........................................................................64
Conclusions ................................................................................................................................................................................... 65
Review questions........................................................................................................................................................................... 65
Chapter
............................................................................................................................................................................. 66
Using UNIX .................................................................................................................................................................................. 66
Introduction ................................................................................................................................................................................... 66
Other resources.............................................................................................................................................................................. 66
What you need to learn.................................................................................................................................................................. 66
Introductory UNIX ........................................................................................................................................................................ 67
W
HY DO
I
NEED TO KNOW THE COMMAND LINE
? ......................................................68
H
OW DO
I
LEARN ALL THIS STUFF
? ...........................................................................68
UNIX C
OMMANDS ARE PROGRAMS
..........................................................................69
vi..................................................................................................................................................................................................
69
A
N INTRODUCTION TO
VI
...........................................................................................70
UNIX commands........................................................................................................................................................................... 72
P
HILOSOPHY OF
UNIX
COMMANDS
..........................................................................72
UNIX
COMMAND FORMAT
........................................................................................73
A
COMMAND FOR EVERYTHING
.................................................................................74
Online help .................................................................................................................................................................................... 74
U
SING THE MANUAL PAGES
.......................................................................................75
I
S THERE A MAN PAGE FOR
... .....................................................................................75
MAN
PAGE FORMAT
.....................................................................................................76
HTML
VERSIONS OF
M
ANUAL
P
AGES
......................................................................76
Some UNIX commands................................................................................................................................................................. 76
I
DENTIFICATION
C
OMMANDS
....................................................................................77
S
IMPLE COMMANDS
..................................................................................................78
F
ILTERS
.....................................................................................................................78
Getting more out of filters ............................................................................................................................................................. 83
Conclusions ................................................................................................................................................................................... 84
Chapter
............................................................................................................................................................................. 85
The File Hierarchy......................................................................................................................................................................... 85
Introduction ................................................................................................................................................................................... 85
W
HY
? .......................................................................................................................85
The important sections .................................................................................................................................................................. 86
T
HE ROOT OF THE PROBLEM
......................................................................................86
Homes for users............................................................................................................................................................................. 87
E
VERY USER NEEDS A HOME
... ..................................................................................87
O
THER HOMES
?.........................................................................................................87
/usr
and
/var
........................................................................................................................................................... 88
A
ND THE DIFFERENCE IS
............................................................................................88
/
USR
/
LOCAL
..............................................................................................................89
LIB
,
INCLUDE
AND
SRC
..............................................................................................89
/
VAR
/
SPOOL
..............................................................................................................90
X-W
INDOWS
.............................................................................................................90

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