Ethical Hacking: Network Security & Network Layer Attack (Udemy.com)
Learn Ethical Hacking with Network Security, Sniffing, Subnetting, Networking, Password Cracking & implement MitM attack
Created by: Muharrem AYDIN
Last updated September 2026
What you will learn
- Ethical hacking involves a hacker agreeing with an organization or individual who authorizes the hacker to levy cyber attacks on a system.
- Becoming an ethical hacker involves learning at least one programming language and having a working knowledge of other common languages like Python, SQL, C++
- Many hackers use the Linux operating system (OS) because Linux is a free and open-source OS, meaning that anyone can modify it. It’s easy to access.
- Ethical hacking is legal because the hacker has full, expressed permission to test the vulnerabilities of a system
- The Certified Ethical Hacker (CEH) certification exam supports and tests the knowledge of auditors, security officers, site administrators, security.
- Passing the Certified Information Security Manager (CISM) exam indicates that the credentialed individual is an expert in the governance of information security
Quality Score
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Overall Score : 96 / 100
Course Description
Welcome all to my cyber security “Ethical Hacking: Network Security & Network Layer Attack" course
Learn Ethical Hacking with Network Security, Sniffing, Subnetting, Networking, Password Cracking & implement MitM attack
Whether you want to get your first job in IT security, become a white hat hacker, or prepare to check the security of your own home network, Udemy offers practical and accessible ethical hacking courses to help keep your networks safe from cybercriminals
Our Student says that: This is the best tech-related course I've taken and I have taken quite a few Having limited networking experience and absolutely no experience with hacking or ethical hacking, I've learned, practiced, and understood how to perform hacks in just a few days
FAQ regarding Ethical Hacking :
What is Ethical Hacking and what is it used for ?
Ethical hacking involves a hacker agreeing with an organization or individual who authorizes the hacker to levy cyber attacks on a system or network to expose potential vulnerabilities An ethical hacker is also sometimes referred to as a white hat hacker Many depend on ethical hackers to identify weaknesses in their networks, endpoints, devices, or applications The hacker informs their client as to when they will be attacking the system, as well as the scope of the attack An ethical hacker operates within the confines of their agreement with their client They cannot work to discover vulnerabilities and then demand payment to fix them This is what gray hat hackers do Ethical hackers are also different from black hat hackers, who hack to harm others or benefit themselves without permission
Is Ethical Hacking a good career?
Yes, ethical hacking is a good career because it is one of the best ways to test a network An ethical hacker tries to locate vulnerabilities in the network by testing different hacking techniques on them In many situations, a network seems impenetrable only because it hasn’t succumbed to an attack in years However, this could be because black hat hackers are using the wrong kinds of methods An ethical hacker can show a company how they may be vulnerable by levying a new type of attack that no one has ever tried before When they successfully penetrate the system, the organization can then set up defenses to protect against this kind of penetration This unique security opportunity makes the skills of an ethical hacker desirable for organizations that want to ensure their systems are well-defended against cybercriminals
What skills do Ethical Hackers need to know?
In addition to proficiency in basic computer skills and use of the command line, ethical hackers must also develop technical skills related to programming, database management systems (DBMS), use of the Linux operating system (OS), cryptography, creation and management of web applications and computer networks like DHCP, NAT, and Subnetting Becoming an ethical hacker involves learning at least one programming language and having a working knowledge of other common languages like Python, SQL, C++, and C Ethical hackers must have strong problem-solving skills and the ability to think critically to come up with and test new solutions for securing systems Ethical hackers should also understand how to use reverse engineering to uncover specifications and check a system for vulnerabilities by analyzing its code
Why do hackers use Linux?
Many hackers use the Linux operating system (OS) because Linux is a free and open-source OS, meaning that anyone can modify it It’s easy to access and customize all parts of Linux, which allows a hacker more control over manipulating the OS Linux also features a well-integrated command-line interface, giving users a more precise level of control than many other systems offer While Linux is considered more secure than many other systems, some hackers can modify existing Linux security distributions to use them as hacking software Most ethical hackers prefer Linux because it's considered more secure than other operating systems and does not generally require the use of third-party antivirus software Ethical hackers must be well-versed in Linux to identify loopholes and combat malicious hackers, as it’s one of the most popular systems for web servers
Is Ethical Hacking Legal?
Yes, ethical hacking is legal because the hacker has full, expressed permission to test the vulnerabilities of a system An ethical hacker operates within constraints stipulated by the person or organization for which they work, and this agreement makes for a legal arrangement An ethical hacker is like someone who handles quality control for a car manufacturer They may have to try to break certain components of the vehicle such as the windshield, suspension system, transmission, or engine to see where they are weak or how they can improve them With ethical hacking, the hacker is trying to “break” the system to ascertain how it can be less vulnerable to cyberattacks However, if an ethical hacker attacks an area of a network or computer without getting expressed permission from the owner, they could be considered a gray hat hacker, violating ethical hacking principles
What is the Certified Ethical Hacker ( CEH ) Certification Exam?
The Certified Ethical Hacker (CEH) certification exam supports and tests the knowledge of auditors, security officers, site administrators, security professionals, and anyone else who wants to ensure a network is safe against cybercriminals With the CEH credential, you can design and govern the minimum standards necessary for credentialing information that security professionals need to engage in ethical hacking You can also make it known to the public if someone who has earned their CEH credentials has met or exceeded the minimum standards You are also empowered to reinforce the usefulness and self-regulated nature of ethical hacking The CEH exam doesn’t cater to specific security hardware or software vendors, such as Fortinet, Avira, Kaspersky, Cisco, or others, making it a vendor-neutral program
What is the Certified Information Security Manager ( CISM ) exam?
Passing the Certified Information Security Manager (CISM) exam indicates that the credentialed individual is an expert in the governance of information security, developing security programs and managing them, as well as managing incidents and risk For someone to be considered “certified,” they must have passed the exam within the last five years, as well as work full-time in a related career, such as information security and IT administration The exam tests individuals’ knowledge regarding the risks facing different systems, how to develop programs to assess and mitigate these risks, and how to ensure an organization's information systems conform to internal and regulat
Instructor Details
- 4.8 Rating
1,107 Reviews
Muharrem AYDIN
After 20+ years of software engineering experience with titles of software developer, product manager, and integration architect, I have been working in cyber security domain for last 15 years. I am not only a cyber security expert but also the head and kick-starter of a cyber security consultancy unit.
In security field, I have performed dozens of penetration tests for institutes from different sectors: finance, military, state agencies, and telcos.
I have been consulting different companies in security field which includes global banks such as ING Bank, HSBC, CitiBank and more.
In addition, I am an adjunct instructor in a university and teaching cyber security for years.
I involved in technical areas and has taken responsibilities in:
Penetration tests (Pentests) and security audits
Cyber security training & consultancy
Source code analysis & secure software development
Cyber security incident response
Information security management system (ISMS) consultancy
Open source cyber security systems, such as OpenVAS, OSSEC, OSSIM, Snort, Suricata, mod security
I'm creating my courses by using my know-how and 10 years of experience. As a result, our first course "Hacking Web Applications and Penetration Testing: Fast Start!" has gained "Best Seller" reputation in its category.
I have risen a lot of cyber security experts from scratch, and you are the next.
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Reviews
By Luis Fernando Arzate Ruiz on 10/7/2020
Thanks It was a fantastic course, I learned a lot of things and I got scared about other things that I learned here. Maybe the section 8 could improve with one file with all the software that is needed.
By Munirah AlAli on 7/14/2020
I'm not online courses person. But this course is an astounding, amazing course. It'll guide you from network layers, to network layers attacks. The implementation of the course is very easy to follow! I enjoyed every minute of it; totally worth your time. My perosnal advice is to use virtual box instead of vm ware, since vm ware can cause some errors while building virtual network in GNS3.
By ALFONSO GUERRERO on 4/27/2020
I was able to download the VirtualBox, but setting up virtual machines inside of it was challenging. I had to use outside resources like Google and Youtube to get them to work.
By Victor Duarte on 4/15/2020
This course is very informative, clean in presentation and presented in a thorough and clear manner. Instructor is very good.
By Nirutha amaranath on 3/18/2020
The first half of the course on network fundamentals covered wide range of topics. The explanation was very well reachable and precise. The installations and setting up the lab environment was very smooth. Thank you!!
By Georgios Mavros on 1/22/2020
Very helpful, especially for beginners. The instructor is full understandable and the lessons motivates you for further occupation. I highly recommend it!
By KOK LI CHING on 8/26/2019
I begins to understand what this cyber security is all about...and the 7 application layers better
By Hasan Ekin on 5/11/2019
I have mixed feelings about this one.The course starts off great , giving you the fundamentals of networking , as well as the "cyber security point of view" of each and every topic, but one thing i didnt like is that this course is highly "theoretical" . This course spends an hour to build a network with GNS3 only to use it for like 10 minutes.But still , it is a must for beginners.I wish there were more lab practises .
By Dalton Jaime on 9/5/2018
I enrolled before one of the other courses of this guy and what I experienced is his lectures are down-to-earth and engaging. He starts from theory and completes with real world examples. I think this is one of the best tutorials and I recommend watching it if you want to learn Network Layer Attacks
By Atilla Topcu on 8/28/2018
Thank you for an excellent course. I want to broaden my horizon and make a transition to the security domain and haven't had a clear path or direction for the switch. I wanted some guidance and found myself going through your profile and hence my writing to you. Thank you again for making everything cristal clear.












