MSc: Classical Internet Applications

Classical Internet Applications

• Course name: Classical Internet Applications (CIA)
• Course number: SNE-03

Course characteristics

Key concepts of the class

• Internet applications
• Focus on the application layer of the TCP/IP protocol stack
• Implementation, configuration, and security of Internet applications

What is the purpose of this course?

CIA course serves as kick-start for the security and network engineering Masters program. Before diving into the depth of the topics, the students must know preliminary concepts related to computer networks services and applications therein. This course is designed to cover the basic services offered by the Internet including operating systems and computer architecture. The concepts from this course will be used throughout the course of whole masters. More precisely, this course will cover the basic computer architecture and assembly language programming, Domain Name Services (DNS), DNSSec, email, web, directories, and disks. This course will also cover protocols and ABNF. The theory part will strengthen the theoretical aspects of the concepts whereas the lab exercises will provide the students with the opportunity to have hands-on experience of the ideas they learnt in the lectures.

Prerequisites

• The course will benefit if students already know some of the following topics:

Basics of TCP/IP networks: TCP/IP stack, transport protocols, application layer protocols, IP addressing, OSI -7 layer model

• Linux OS: architecture, system calls, ELF binary structure, networking and administration
• Shell Scripting: ability to work with the terminal as administrator and automatise tasks

References:

• Linux for Beginners
• Linux Kernel and Architecture
• Linux Administration and Networking
• Shell Scripting
• Computer Networks

- What should a student remember at the end of the course?

By the end of the course, the students should be able to:

• Identify different Internet applications and understand their working principles from the protocols point of view
• Demonstrate the acquired knowledge and skills in classical internet applications including DNS, Email, and Directory services.
• Able to write regular expressions and context-free grammar that are essential in Internet applications and information exchange through the networks
• Able to partition disks and remember the booting principles as well as secure booting

- What should a student be able to understand at the end of the course?

By the end of the course, the students should be able to describe and explain (with examples)

• Demonstrate knowledge and skills to use web services
• Demonstrate the essential knowledge of disks and calculate particular locations/addresses in disks
• Reason about problems in the current DNS and the need to upgrade to DNSSEC and DNS over HTTPS
• Demonstrate the knowledge of email and other services configuration

- What should a student be able to apply at the end of the course?

By the end of the course, the students should be able to apply the acquired knowledge in the following way.

• Install, Configure, update, and manage DNS services over a network
• Configure, maintain, and update the secure DNS over a network
• Update, add, and delete records in DNS
• Configure a secure mail server and maintain it
• Get hands-on experience of the afore-mentioned technologies on their own servers.

Course evaluation

Course grade breakdown

		Proposed points
Labs/seminar classes	20	20
Lab tasks assessment	40	40
Exams	40	40

If necessary, please indicate freely your course’s features in terms of students’ performance assessment: None

Grades range

Course grading range

		Proposed range
A. Excellent	90-100
B. Good	75-89
C. Satisfactory	60-74
D. Poor	0-59

If necessary, please indicate freely your course’s grading features: The semester starts with the default range as proposed in the Table 2, but it may change slightly (usually reduced) depending on how the semester progresses.

Resources and reference material

• Lecture slides
• RFCs
• Link to the online material will be provided (if any)

Course Sections

The main sections of the course and approximate hour distribution between them is as follows:

Course Sections

Section	Section Title	Teaching Hours
1	Intro, Booting, Operating Systems Essentials, and Computer Architecture	8
2	DNS, DNSSEC, DoH	14
3	Email	4
4	ABNF, Deflating, Directory Services, Disks, Web, and Protocols	12
5	Labs	56

Section title:

Booting, Operating Systems, and Computer Architecture

Topics covered in this section:

• Booting principles and disks
• Essentials of operating systems
• Fundamentals of computer architecture

What forms of evaluation were used to test students’ performance in this section?

|a|c| & Yes/No
Development of individual parts of software product code & 0
Homework and group projects & 1
Midterm evaluation & 0
Testing (written or computer based) & 1
Reports & 1
Essays & 0
Oral polls & 0
Discussions & 1

Typical questions for ongoing performance evaluation within this section

1. What are the different steps in booting?
2. How the disks are partitioned?
3. Explain UEFI booting

Typical questions for seminar classes (labs) within this section

1. Demonstrating the knowledge of booting
2. Analyze assembly code at a basic level
3. Demonstrate the system and library calls in operating systems

Test questions for final assessment in this section

1. Same as above

Section title:

DNS, DNSSEC, and DoH

Topics covered in this section:

• DNS
• DNSSEC
• DoH

What forms of evaluation were used to test students’ performance in this section?

|a|c| & Yes/No
Development of individual parts of software product code & 0
Homework and group projects & 1
Midterm evaluation & 0
Testing (written or computer based) & 1
Reports & 1
Essays & 0
Oral polls & 0
Discussions & 1

Typical questions for ongoing performance evaluation within this section

1. Hows does DNS query get resolved?
2. What is iterative and recursive DNS server?
3. How does wildcard work in DNS?
4. What is zone walking in secure DNS?
5. What is delegation in DNS?
6. What is NSEC and NSEC3 records in DNSSEC?
7. What is the difference between DNSSEC and DoH?

Typical questions for seminar classes (labs) within this section

1. Configure DNS, DNSSEC, and DoH (with specific tasks)

Test questions for final assessment in this section

1. How does DNS query get resolved in DNS?
2. How zones are formed?
3. How delegation works in DNS?
4. How resource records are verified in DNSSEC?
5. What is meant by zone walking and how is it avoided?
6. Why do we need DNSSEC where we can use simple DNS over HTTPS?

Section title:

Email

Topics covered in this section:

• Email architecture
• Spam management

What forms of evaluation were used to test students’ performance in this section?

|a|c| & Yes/No
Development of individual parts of software product code & 0
Homework and group projects & 1
Midterm evaluation & 0
Testing (written or computer based) & 1
Reports & 1
Essays & 0
Oral polls & 0
Discussions & 1

Typical questions for ongoing performance evaluation within this section

1. What are different protocols used in email?
2. What are the different agents used in email system?
3. How to avoid spamming in email?
4. How to configure email servers?

Typical questions for seminar classes (labs) within this section

1. Configure email server
2. Configure anti-spamming techniques

Test questions for final assessment in this section

1. What are different agents and their roles in email architecture?
2. How MX records work?
3. How to configure different anti-spamming policies?

Section title:

Directory, Web, Protocol, ABNF and Deflating

Topics covered in this section:

• Directory services
• Web
• Protocols
• ABNF
• Deflating

What forms of evaluation were used to test students’ performance in this section?

|a|c| & Yes/No
Development of individual parts of software product code & 0
Homework and group projects & 1
Midterm evaluation & 0
Testing (written or computer based) & 1
Reports & 1
Essays & 0
Oral polls & 0
Discussions & 1

Typical questions for ongoing performance evaluation within this section

1. How directory services are implemented?
2. How permissions are set?
3. How disk partitions are made?
4. How different web protocols work?
5. How network packets are management in a standard way through ABNF?
6. How to write new formats through ABNF?

Typical questions for seminar classes (labs) within this section

1. Implement different web services
2. Configure active directory

Test questions for final assessment in this section

1. As above