Assignment: Write a 4-6 page tutorial on common Linux admin tasks. There is no r

Question

Assignment: Write a 4-6 page tutorial on common Linux admin tasks.

There is no required format, but it should be well organized, easy to understand. There is no need for a formal references/citation section.

Requirements: Your tutorial should include topics such as:

Choice of Linux distributions

How to install

Choices for package management systems

Creating users and groups

Choices for typical services such as printing, email, and web

Commonly-used Linux commands that an administrator should know

At least 4 single-spaced pages

Explanation / Answer

Solution:

Linux is the most famous operating system. There are many distributers of Linux opearting system.

Some of the famous distributers are:

Installing Linux :

First you need to decide the Linux distribution you want to install.

a. Then choose the boot option.

b. Build the boot drive
you need a utility to create a bootable flash drive.

Choices for package management systems:

The following PAckage managers can be considered:

Creating users and groups:

useradd command is used to create a new user.

The synatx: useradd [options] username

for example,

sudo useradd Chegg

The Chegg user is added without home directory.

sudo useradd -m Chegg

This command would create the user Chegg and also create the user’s home directory with matching username.

sudo passwd Chegg

User will be prompted to enter and verify the new password. User account will be unlocked and user can log in.

Creating Groups:

sudo groupadd experts

This command will create a group called experts.

To add new user to experts ,

sudo usermod -a -G experts Chegg

A new user Chegg is added to the experts group.

The -a stand for append.

The -G stand for group.

Thus append append to the group experts a new user called Chegg.

grep experts /etc/group

This command will give all information about the group.

Choices for typical services such as printing, email, and web:

A Linux service is a set applications that run in the background.

CUPS :

CUPS stand for Common UNIXPrinting System.

It is a print server for Ubuntu. It is freele available and portable .

It manages the print jobs and provides network printing.

It uses IPP(Internet Printing Protocol).

Supports a larhe range of printers.

simple web based configuration and administartion tool.

Sendmail:

Sendmail is used to create a mail server to send and recieve mail.

postfix and qmail are also gaining popularity.

Sendmail can handle incoming and outgoing mail for your domain.

To configure the Sendmail, Set up DNS for your domain.

Each user has a regular Linux account on the mal server created by you.

User recieves the mail using client software such as Microsoft’s Outlook.

Linux users can read their mails directly.

for outgoing mail, User need to configure his e-mail software to SMTP mal server.

Commonly-used Linux commands that an administrator should know:

The administrator’s best friend is terminal.

man

This is the most important command in Linux. man is used to see the information abut other Linux commands.

uptime

This command shows how long your system has been running.

users

Shows the uernames of users who are currently logged in.

W

Shows who is loggend in currently and what are they doing.

grep

finds the given text in files.

ssh
helps to connect to remote host

sudo

used to run the commands as the super user.

chmod

used to change file permissions.

chown

used to change the ownership of a file to a user or user group.

mount

mounts a file system.

ifconfig

used to configure a network’s interface.

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