Trivial File Transfer Protocol (TFTP Protocol)
Introduction FTP or file transfer protocol is a standard protocol for exchanging files between two devices inside a network. However, FTP also has some drawbacks, such as requiring a lot of resources and having some compatibility issues with different operating systems. That’s why a more straightforward and lighter alternative to FTP is needed. That’s where […]
Difference between ARP and RARP
Introduction In computer networking, it is crucial to map a logical address (such as an IP address) to a physical address (such as a MAC address). The reason behind this is that network layers use different types of addresses to identify and communicate with different devices available within a network. But the question that comes […]
Common Types of Network Devices and Their Functions (2025)
Introduction A computer network comprises a collection of interconnected devices. These devices, including computers, printers, and other data-transmitting tools, are linked through communication channels. Various types of network devices are utilized to establish, maintain, protect, and improve network connections. Network Devices carry out different functions at different layers of the OSI model and have different […]
What is Ethernet in Computer Networks, Its Types and Uses?
Introduction Ethernet is a technology that enables devices to communicate over a wired network. It is widely utilized in area networks (LANs) where computers, printers, scanners, and various other devices are interconnected both with each other and with the internet. Ethernet is also employed in wide area networks (WANs) where multiple LANs are linked over […]
What is Reverse Address Resolution Protocol (RARP)?
Introduction Reverse Address Resolution Protocol, also known as reverse ARP, is a networking protocol used to link a MAC address with an Internet Protocol (IP) address. It is the inverse of the Address Resolution Protocol (ARP), which links an IP address with a MAC address. RARP was originally developed in the stages of computer networking as […]
What is OSI Model in Computer Network?
Introduction OSI model or Open Systems Interconnection model serves as a framework that explains the process of information transfer, i.e., from one computer’s software application to another computer through a medium. It was created by the International Organization for Standardization (ISO) in 1984. It is now widely acknowledged as an architecture model for inter-computer communication. […]
What is DHCP Snooping and How it Works?
Introduction The Dynamic Host Configuration Protocol (DHCP) is a network protocol that enables devices to obtain IP addresses and other network configuration details from a server. DHCP simplifies IP addresses as well as reduces the need for configuration. However, it also introduces security risks, such as DHCP spoofing and DHCP starvation. To safeguard the network […]
What is MAC Address? Types, Uses & How to Find It (2025)
Introduction Ever wonder how your laptop knows which data belongs to it when connected to a busy coffee shop Wi-Fi? Or how does your smart TV receive the Netflix stream you requested instead of your neighbor’s YouTube videos? The answer lies in a small but mighty string of characters called a MAC address. A MAC […]
What is ICMP Protocol? | Internet Control Message Protocol
Introduction The Internet is a web of interconnected devices that communicate using protocols. One such protocol is the Internet Control Message Protocol (ICMP), which helps network devices diagnose communication issues. ICMP protocol plays a significant role in determining whether the data is reaching its intended destination on time or not. Typically, routers and other network […]
What is SSH (Secure Shell) in Networking? (2025)
Introduction If you want to control a server or machine that is physically inaccessible, you need to communicate with it remotely. However, not all remote strategies are stable and secure. For example, older protocols like Telnet or rlogin ship your commands and passwords in simple text, which can effortlessly be intercepted by means of hackers […]
