Abstract

Server configuration and maintenance using Linux Centos 6.3 was the main objective of this internship. Oracle virtual Box is used while configuring DHCP server, web server, mail server and other servers. Configured servers were tested in different stages and found properly running under various scenarios. The Mail server is divided into three modules i.e Server module, Client module, Email inbox module. Server accept the connection from different clients through server socket class and all the details regarding client connection establishment, sending, receiving and termination is store in the server. Client can connect to the server when server is active, each client can send and receive mails, Attachment to other clients.

A syslog server accepts messages and stores them to a file. The number of syslog messages generated by still increasing number of networking devices is growing very rapidly. To read all the messages generated every day by active networking devices is out of human capabilities. Working in live servers in Daffodil Online Limited added huge experiences in upcoming career.

TABLE OF CONTENT 

CONTENTS       PAGE NO 

Approval          i

Declaration          ii

Acknowledgement         iii

Abstract         iv

List of Figure         vii-viii

List of Table         ix

 

CHAPTER 1: INTRUDUCTION     1-3

1.1 Introduction        1

1.2 Motivation        1

1.3 Internship Objectives       1

1.4 Introduction to the Company      2

1.5 Report Layout        2

CHAPTER 2: ORGANIZATION     4-6

2.1 Introduction        4

2.2 Product and Market Situation      4

2.3 SWOT Analysis       5

2.4 Organizational Structure      6

 

CHAPTER 3: TASKS PROJECT AND ACTIVITIES  7-43

3.1 Daily Task and Activities      7

3.2 Events and Activities       7

3.3 Project Task and Activities      8

3.4 Challenges        43

 

CHAPTER 4: COMPETENCIES AND SMART PLAN 44-45

4.1 Competencies Earned       44

4.2 Smart Plan        44

4.3 Reflections        45

CHAPTER 5: CONCLUSION AND FUTURE CAREER 46

5.1 Discussion and Conclusion         46

5.2 Scope for Further Career      46

APPENDIX                                                                             47

APPENDIX A: INTERNSHIP REFLECTION    47

APPENDIX B: COMPANY DETAIL     47

 

References         48

LIST OF FIGURES

 

FIGURES        PAGE NO

 

Figure 2.1: Organogram of Daffodil Online Limited.   6

Figure 3.1: Hostname Setup       13

Figure 3.2: SELINUX Disabled      13

Figure 3.3: IP Address setting       14

Figure 3.4: DNS Configuration      15

Figure 3.5: Starting process of the network system    15

Figure 3.6: Installation checking      17

Figure 3.7: Nonuser Based Configuration     18

Figure 3.8: Enable Upload and Download     19

Figure 3.9: FTP Banner and Time Setting     20

Figure 3.10: FTP Server Checking      20

Figure 3.11: User Based Configuration     21

Figure 3.12: User Create       22

Figrue 3.13: Checking by Admin User     22

Figrue3.14: Access FTP server from browser    23

Figrue3.15: Access FTP server from browser    23

Figure 3.16: HTTPD download and install     26

Figure 3.17: Simple HTML Coding      27

Figure 3.18: Virtual Host Configuration     28

Figure 3.19: Service restarting      28

Figure 3.20: Web Server Checking      29

Figure 3.21: Hostname Setup       30

Figure 3.22: Download and installation postfix    31

Figure 3.23: User Create of Mail server     32

Figure 3.24: Telnet download Installation     33

Figure 3.25: Checking Postfix      34

Figure 3.26: New mail       35

Figure 3.27: Dovecot Installation      36

Figure 3.28: Dovecot Checking      38

Figure 3.29: Squirrelmail Installation      39

Figure 3.30: Service restarting      41

Figure 3.31: Mail Server Checking      42

Figure 3.32: Mail Server Checking      42

LIST OF TABLE

 

TABLE        PAGE NO

 

Table 3.1: Basic Commands of Linux     9

CHAPTER 1

Introduction

 

1.1 Introduction

 

Today is the age of modern Science & Information Technology, which is critical to the development of more effective operational & management process. Now a days data communication & networking may be the fastest growing technologies in the World. People know has the deep idea about Internet & its feature. Internet becomes an essential part of our everyday life, but few years ago using of Internet was a dream to peoples. ISPs provide that service.  Computer & Computer networks & Internet Services are found in nearly every business & industry around us. But just 25 years ago situation was not like this. As an underdevelopment, the main two reasons may be lack of trained people & unexpected actions from our Government.

In this Internship I had worked about Network Performance Monitoring Systems. I had also worked how create sub domain and server configuration. I have configured FTP Server, MAIL server and WEB Server in this report. ISP is an infrastructure to provide Internet connections among the clients by following some protocols & Rules [1].

1.2 Motivations

 

• It can be very interesting and make life more convenient.
• It can save money
• It can enhance one’s career or business
• It increased the security that comes from using an open source operating system.

1.3 Internship Objective

 

The main objective of this report is fulfilling the practical requirements about Linux server. This report is to critically evaluate the server of Daffodil Online Ltd.

• How to install Linux Operating System.
• Basic Linux Administration.
• To know about Web server, FTP server, Mail server and Networking configuration.
• Configuring Web server, FTP server, Mail server.
• To achieve a deep knowledge about the network area.
• The main objective of education is to acquire knowledge.
• I choose an internship because I wanted to benefit from the experience.

1.4 Introduction to the Company

 

Daffodil Online Ltd. is one of the leading Internet Service Provider in Bangladesh. It is the most experienced and oldest company in the ICT field in Bangladesh, where the basic business ethics is Long Term Relationship with customers.

 

Name:       Daffodil Online Ltd.

Address:      102, Shukrabad (3rd floor), MirpurRoad,

Dhanmondi, Dhaka – 1207, Bangladesh

Telephone:      9143258, 9143259

E-mail:      [email protected]

Website:     www.daffodilnet.com

Type of organization:     Internet Service Provider (ISP)

1.5 Report Layout

 

Internship program has become a significant aspect of postgraduate requirement. In practice, it is of great importance in changing the field of theoretical learning. Its significance is effective in satisfying the requirement of graduate degree.

In the chapter 1, I have described objective of internship, Motivation of internship and internship goal.

In the chapter 2, I have described the methodology of my internship. And this chapter gives the information about where the internship has been attached to undertake this program. Also included about how did perform the internship works, about the company, what are the IT service offered in DOL and what are the roles of in jobs market of Linux .

In the chapter 3, I have described what are my Training Attended, Assigned responsibilities and how was my internship environment. Here also included what is my performing task which I covered in the time of my internship.

Chapter 4, I have described is Internship Outcomes. Here included Problems and Solutions, Learning Outcomes and Challenges.

And Chapter 5, I have described is Conclusion and Future Scope. I discuss Future Scopes of Linux and write conclusion.

CHAPTER 2

Organization

 

2.1 Introduction

 

Daffodil Online Ltd. prides itself as one of the leading nationwide Internet Service Provider (ISP) in Bangladesh. It is most experienced and oldest company in the ICT field. This chapter I want to describe about the organization where I complete my intern ship session. I detail describe about the product and market situation. About SWOT analysis. And also tell about the organizational structure or their formation how they complete their work.

2.2 Productand Market Situation

 

• Internet Service
• Domain and Hosting
• Professional Training
• Collocation Service
• Network Solution

Professional course and trainings:

• ISP Setup and Administration using Linux
• Training Course on Certified Ethical Hacking
• ISP Setup and Administration using Mikrotik
• Web Site Development with joomla
• PHP and MYSQL for website Development
• E-commerce and Open Source joomla Virtue Mart
• Red Hat Certified Engineer (RHCE)

The market situation is very good. Because, they offer fare services and maintain 100% client satisfaction. They provide 24/7 hours phone and chat support to their customer.

 

 

 

2.3 SWOT Analysis

[2].

Strength:

• Daffodil Online limited are able to respond very quickly for give customer service as they have no red tape.
• Daffodil Online Limited give really good customer care during the long time still now that means is have plenty of time to devote to customers.
• Keeping costs below that of competitors
• Higher responsiveness to customer demands
• Daffodil Online Limited also has low overheads. So it can offer good value to customers.

Weakness:

• Outdated market research data.
• Marketing sites are few problems.
• Customer motivation need to more speed up.

Opportunities:

• Internet as a marketing tool.
• Seasonal high demand of the product.
• People are using internet most of the time.

Threats:

• Stronger brand name of competitors.
• A competitor opening new Company in a nearby location.
• A lot of competitors in the market with similar products

2.4 Organizational Structure of Daffodil Online Limited [1].

 

Figure 2.1: Organogram of Daffodil Online Limited.

CHAPTER 3

Tasks Project and Activities

 

3.1 Daily Task and Activities

 

• Monitor and maintain computer systems and network.
• Setting up user accounts, permissions and passwords.
• Troubleshooting servers and routers.
• Troubleshooting local area networks and switches.
• Fixing network faults.
• Technical support for people using the network.
• Day to day admin and monitoring of network use.
• Suggesting IT solutions to business problems.

 

3.2 Events and Activities

 

Internship Training is very much related to the part of completion of our B.sc Degree especially in CSE. It was a 4 months training course on Linux Operating system. DOL is going to conduct the most challenging & demanding IT professional courses and training in the day of globalization. So I took part in this enterprise for better training and completion of my internship program.

Month – 1: In the first month of internship on daffodil online limited I have learned and performed the following tasks:

• Learning & understanding About Network Components.
• Learning & understanding Basics of Linux.
• Understanding Linux HDD Partitions.
• Learning & understanding Linux Run Level.
• Linux Installation.

Month – 2: In the second month of internship on daffodil online limited I have learned and performed the following tasks:

• Basic Centos Commands.
• Linux User and Password Management.
• Know About logged in users.
• File and Directory Accessing.
• To Copy and Move File and Directories.
• Add user and Delete user.

Month – 3: In the third month of internship on daffodil online limited I have learned and performed the following tasks:

• File and Directory Permissions.
• Install, Update and Remove Package Using YUM.
• Concept of IP Addressing.
• Configuring IP Address in Centos.
• Seliux configure
• Host name configure
• DNS configure

Month – 4: The last month of internship on daffodil online limited I have learned and performed the following tasks:

• Learning, understanding and configuring WEB Server.
• Learning, understanding and configuring FTP Server.
• Learning, understanding and configuring MAIL Server.

3.3 Project Task and Activities

 

As an internee I always try to provide proper service to the department of Daffodil Online Limited. I have performed different innovative tasks during the period of my internship in (DOL).

 

 

3.3.1 Operational Code of Linux

For using the operating system of Linux we must have the knowledge of basic command of Linux .This command uses Linux server and Linux operating system.

Here we show the basic commands of Linux [4].

Table 3.1: Basic Commands of Linux

Command	Definition
mkdir	Create directory                                                                                                        Ex: mkdir mukta
	Create file                                                                                              Ex: (touch gini)
ls	List Show                                                                                                    Ex:  ls( File name)
vim	For use file edit