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Found 1625 Articles for Computer Network
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Chat conferencing is a method of communication that allows multiple users to participate in a virtual conversation in real-time. This can be done through a variety of different protocols and technologies, each with its own set of features and capabilities. In this article, we will discuss the most commonly used chat conferencing protocols and their respective strengths and weaknesses. IRC (Internet Relay Chat) IRC is one of the oldest chat conferencing protocols, dating back to the late 1980s. It is a text-based protocol that allows users to join channels (virtual rooms) where they can communicate with others. IRC is a ... Read More
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Virtualization is a technology that allows multiple virtual machines to run on a single physical machine. It is a powerful tool that has revolutionized the way we use computers and has become an essential component of modern IT infrastructure. The concept of virtualization has been around for decades, but it has only recently become mainstream as technology has advanced and costs have dropped. In this article, we will explore the characteristics of virtualization and how it is being used today. Abstracting Physical Resources One of the most significant characteristics of virtualization is the ability to abstract physical resources. This means ... Read More
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Introduction The Internet of Things (IoT) is a rapidly growing technology that connects everyday devices to the internet, allowing for seamless communication and data exchange. This technology has the potential to revolutionize various industries, from healthcare to transportation, by providing real-time data and insights to improve efficiency and decision-making. However, despite the tremendous potential of IoT, there are several challenges that need to be overcome to ensure that it can reach its full potential. In this article, we will discuss some of the major challenges in connectivity in IoT and provide examples of how they are currently being addressed. Challenges ... Read More
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Challenge Response Authentication Mechanism (CRAM) is a type of authentication method that is used to verify the identity of a user or device. This method of authentication is based on the principle of challenging the user or device to prove their identity by providing a specific response to a challenge. CRAM is commonly used in network security and is a popular method of authentication for devices and systems that require a high level of security. What is CRAM? CRAM is a type of authentication mechanism that is based on the principle of challenging a user or device to prove their ... Read More
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Challenge Handshake Authentication Protocol (CHAP) is a widely used authentication method that provides an added layer of security to network connections. This protocol is commonly used in Point-to-Point Protocol (PPP) connections, such as those used for dial-up internet access or virtual private network (VPN) connections. The basic principle of CHAP is that it challenges the connecting client to prove their identity by providing a specific response to a unique challenge. This challenge-response mechanism is designed to prevent unauthorized access and protect against replay attacks. How CHAP Works CHAP uses a three-step process to authenticate a client. The first step is ... Read More
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Cellular networks are the backbone of modern communication, connecting people and devices across the globe. These networks are the foundation of the mobile phone industry, enabling users to make calls, send text messages, and access the internet. Cellular networks have evolved significantly over the years, becoming faster, more reliable, and more accessible than ever before. What are Cellular Networks? Cellular networks are a type of wireless communication system that uses a network of cells to connect devices. Each cell is a geographic area that is covered by a base station, which is a transmitter and receiver that connects to a ... Read More
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Computer networks are becoming more and more complex as technology advances. One of the key protocols that helps manage this complexity is the Common Address Redundancy Algorithm (CATA) protocol. This protocol is designed to help manage the process of assigning and managing IP addresses in a network. In this article, we will discuss the CATA protocol in depth, including its key features, how it works, and some examples of how it is used in real-world networks. What is the CATA Protocol? The CATA protocol is a protocol that is used to manage IP addresses in a network. It is designed ... Read More
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Intranets and VPNs are two devices that are widely used in business. It is crucial to clarify that an intranet is merely a term that refers to an internal network that simulates the Internet. Still, VPN, which means Virtual Private Network, is one method used to remotely connect to a system as if you were linked locally. Using applied research makes it easy for administrators to provide different levels of accessibility in a manner that most people are already familiar with. On the other hand, VPN was created to address the need for low-cost, secure connections between distant workplaces. Before ... Read More
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What is Diffie-Hellman Key Exchange (exponential key exchange)? The Diffie-Hellman key exchange (also known as exponential key exchange) is a method for securely exchanging cryptographic keys over an insecure channel. It is a fundamental building block of many secure communication protocols, including SSL/TLS and SSH. The Diffie-Hellman key exchange works by allowing two parties (Alice and Bob) to agree on a shared secret key over an insecure channel, without any other party being able to intercept the key or learn anything about it. The key exchange involves the following steps − Alice and Bob agree on two large prime ... Read More
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What is Reflection Attack? A reflection attack is a type of cyber attack in which the attacker sends a large number of requests to a server, each with the victim's IP address as the source address. The server responds to these requests, sending a large number of responses back to the victim. This can cause the victim's network connection to become overloaded, disrupting their access to the Internet or other network resources. Reflection attacks are often used in conjunction with amplification attacks, in which the attacker uses a server with a large response capacity (such as a DNS server) to ... Read More