Linux.pdf

Step by

Step Linux

Guide

M. B. G. Suranga De Silva

Step by Step Linux Guide, describes the system administration aspects of using Linux.

It is intended for people who know nothing about system administration. This book

Step by Step TM Linux Guide. Page 1

doesn’t tell you how to install Linux since it is very straight forward but it gives you

real world mail, DNS, proxy, web, messaging etc… server installations and

configurations.

System administration is all the things that one has to do to keep a computer system in a

useable shape. It

Includes things like backing up files and restoring , installing new programs, creating

accounts for users, making certain that the filesystem is not corrupted, and so on.

There is no one official Linux distribution, so different people have different setups,

and many people

have a setup they have built up themselves. This book is not targeted at any one

distribution, even though

I use Red Hat Linux 8 and 9 the contents can be applied to any distribution.

Many people have helped me with this book, directly or indirectly. I would like to

especially thank my own brother Dilan Kalpa De Silva, Luckshika Jayadeva for her

excellent type-setting, my ever loving mother, two sisters and my aunt Mallika

Vitharana.

Step by Step TM Linux Guide. Page 2

Quick Configs

Jabberd

Sendmail

Qpopper

Qmail

CourrierIMAP Server

Squirrelmail

DHCP Server

PHP and Mysql

PostGRE

File Server

Squid

Squidguard

Iptables

Freeradius

Apache

Apache Monitoring Tool (AWTStats)

Samba

DNS Bind

OpenLDAP

NoCatAuth

Load Balancers

Load Sharing

Network Monitoring Tool (nagios)

Kernal Recompilation

Java in Linux

Linux commands in brief

Step by Step TM Linux Guide. Page 3

Target Market

IT Training Institutes

IT Departments of any organization

Libraries (school/public/ universities)

Students

Unique Selling Points

1. Open Source freely available

2. Stable

3. Everything in single book

4. Administrators can build their own systems, from that they can take

the full control over the system. When company relies on the system,

administrators will feel more job security.

5. No need of expensive PCs to learn, just 486 is enough to become an

expert.

6. High Security

7. Free Five hours onsite cooperate training.

8. Easiest way to become a System Administrator or Systems Engineer.

Jabberd Quick Installation Guide

Step by Step TM Linux Guide. Page 4

The jabberd server is the original open-source server implementation of

the Jabber protocol, and is the most popular software for deploying

Jabber either inside a company or as a public IM service.

1. Save the file jabberd-1.4.2.tar.gz to /tmp/ (or to a directory of your

choice).

1. Open a console window and create the directory as /path/to/jabber/

as follows

[root@im root]#mkdir /path/

[root@im root]#mkdir /path/to/

[root@im root]#mkdir /path/to/jabber/

3. Type mv /tmp/jabberd-1.4.2.tar.gz /path/to/jabber/

4. Type cd /path/to/jabber/

5. Type gzip -d jabberd-1.4.2.tar.gz

6. Type tar -xvf jabberd-1.4.2.tar (this creates a jabberd-1.4.2/

directory containing various files and subdirectories)

7. Type cd jabber-1.4.2/

8. Type ./configure

Type make

10. Open another console and type cd /path/to/jabber/jabber-1.4.2/

11. Type ls -l jabberd/jabberd to view the permissions on the Jabber

daemon. The output on your console should look something like

this: -rwxr-xr-x 1 user group 675892 Feb 25 2004

jabberd/jabberd

12. Type ./jabberd/jabberd to start the Jabber daemon. This will run

the server using the default hostname of localhost. You should see

Step by Step TM Linux Guide. Page 5

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