About This Chapter
Network Firewall Systems - Chapter Summary
Our instructors have developed entertaining lessons you can access any time to discover or better understand network firewall systems. Whether you're looking to learn more about systems security, firewalls in network security, spoofing attacks or SSH proxy tunnels, we can help! Each lesson takes an in-depth look at these topics and features a short quiz you can take to assess your understanding. If you develop questions about concepts covered in the lessons, feel free to send them to our subject-matter experts via the Dashboard. We offer a chapter exam to ensure you have a quality grasp of all the lessons. When you're finished with this chapter, you will be able to:
- Define communication protocol
- Explain the meaning of an Internet packet
- Discuss the analysis and management of network nodes
- Detail how to use the OSI model to send and receive data
- Describe the application layer of the OSI model
- List and discuss communication and wireless computing devices
- Identify and discuss the components of a telecommunications system
1. Systems Security: Firewalls, Encryption, Passwords & Biometrics
Computer systems face a number of security threats. Learn about different approaches to system security, including firewalls, data encryption, passwords and biometrics.
2. What is a Firewall in Network Security? - Role & Use
The network firewall is an important piece of equipment that protects your network from hackers and other cyber criminals. Its use is essential if your business is connected to the Internet, and it's highly recommended for residential users too.
3. Firewalls in Network Security: Features & Functions
Firewalls operate as a type of fence to protect what's coming into and leaving your network. In this lesson, you'll learn more about their functionality and some features that are common in today's firewalls.
4. What is Communication Protocol? - TCP/IP & Explanation
In this lesson, you'll learn about the Internet's protocol suite, composed of the Transmission Control Protocol (TCP), and the Internet Protocol (IP); abbreviated as TCP/IP. Then you'll be able to test your knowledge with a quiz!
5. Internet Packet: Definition & Explanation
In this lesson, we'll define Internet packets and describe Internet packet construction. We'll also discuss the 14 fields comprising a typical data packet.
6. Network Node: Analysis, Management & Monitoring Tools
A network can be very complex when you consider the variety of nodes. The ability to monitor and analyze network traffic is crucial for many reasons. In this lesson, we'll examine methods of monitoring, analyzing, and managing networks.
7. What is a Spoofing Attack? - Definition & Types
In this lesson, we will examine the definition of a type of cyber-attack known as spoofing. We will examine the activities entailed in the different type of spoofing attacks
8. OSI Model: Using Open Systems Interconnection to Send and Receive Data
The Open System Interconnection (OSI) model describes how data is sent and received over a network. It consists of seven layers: the physical layer, data link layer, network layer, transport layer, session layer, presentation layer, and application layer. This lesson discusses how the OSI model works and the role of each layer for transmitting messages.
9. Application Layer of the OSI Model: Definition, Functions & Protocols
Learn about how the Application Layer of the OSI model allows us to perform basic daily activities. Go over the definition of the Application Layer as well as its various functions and protocols.
10. Communication & Wireless Computing Devices: GPS, PDA, Cellular & Satellite
A large number of different devices use wireless communications networks. Learn about the different types of devices and which communication signals they use.
11. SSH Proxy Tunnels
In this lesson, we will examine what proxy tunneling is all about and understand what SSH proxy tunneling is. We will examine the three main uses of SSH proxy tunnels.
12. The Components of a Telecommunications System
Telecommunication is communication at a distance using electrical signals or electromagnetic waves. Learn about the components and properties of telecommunication systems.
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