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Articles on Trending Technologies
Technical articles with clear explanations and examples
What is DNS Leak (IP Leak)?
A DNS (Domain Name System) is a critical service that translates human-readable domain names like "google.com" into IP addresses that computers use to communicate. Think of it as the internet's phone book, allowing you to access websites by their names rather than remembering complex numerical addresses. What is DNS Leak? A DNS leak, also known as an "IP leak", is a security vulnerability that occurs when your DNS requests are sent to unintended DNS servers, potentially exposing your browsing activity. This commonly happens when using a VPN service that fails to properly route DNS queries through its secure ...
Read MoreXMODEM File Transfer Protocol
XMODEM is a standard file transfer protocol developed by Ward Christensen in 1977. It is a half-duplex communication protocol that sends data in blocks and waits for acknowledgment before transmitting the next block. XMODEM includes effective error detection mechanisms and is widely used in both hardware and software implementations. The protocol organizes file data into packets sent sequentially to the recipient, along with control information that allows the receiver to verify packet integrity. Files are padded with known characters to fill the final block, and file transfer completion is signaled with an end-of-file character. ...
Read MoreAdvantages and Disadvantages of ESS
Energy Storage Systems (ESS) have become increasingly popular as a way to store and manage energy for both residential and commercial use. ESS can store energy from renewable sources such as solar and wind, as well as from traditional sources. These systems play a crucial role in modern power grids by providing flexibility, reliability, and supporting the integration of clean energy sources. Energy Storage System Operation Solar Panel Energy Source ESS Storage System Power ...
Read MoreDifference between IGRP and EIGRP
The distance-vector routing protocols IGRP (Interior Gateway Routing Protocol) and EIGRP (Enhanced Interior Gateway Routing Protocol) are both proprietary Cisco protocols used in enterprise networks. While IGRP was widely deployed in the 1980s and 1990s, EIGRP serves as its modern successor with significant improvements in performance and functionality. Understanding the differences between these protocols is essential for network engineers working with Cisco infrastructure, as EIGRP has largely replaced IGRP in contemporary network deployments. What is IGRP? Interior Gateway Routing Protocol (IGRP) is a distance-vector routing protocol developed by Cisco Systems in the 1980s. It was designed to ...
Read MoreStay One Step Ahead of Hackers: The Ultimate Guide to Network Security
Network security is the practice of protecting networks and their data from unauthorized access, cyberattacks, and data breaches. In today's interconnected digital landscape, robust network security measures are essential for safeguarding sensitive information and maintaining business continuity. This comprehensive guide explores the fundamental network security methods and best practices that organizations use to defend against evolving cyber threats, from basic firewalls to advanced threat detection systems. Network Security Defense Layers Protected Internal Network Firewall Firewall ...
Read MoreWhat is an ARC NET in the Computer Network?
ARC NET (Attached Resources Computing Network) is a local area network topology that uses coaxial cables and token passing protocol for data transmission. Developed by Datapoint Corporation in the late 1970s, it was one of the earliest commercial networking technologies, predating both Ethernet and IBM Token Ring. ARC NET uses a 93-ohm RG-62 A/U coaxial cable, which is incompatible with thin Ethernet's 50-ohm cables despite their similar appearance. The network operates at 2.5 Mbps using analog signaling and can support up to 255 nodes (not 55 as often misunderstood) with proper configuration. ARC NET ...
Read MoreHow do you measure Network Performance?
The examination and review of collective network information to describe the quality of services delivered by the underlying computer network is known as network performance. It is a qualitative and quantitative procedure that assesses and defines a network's performance level. Network performance measurement assists administrators in reviewing, evaluating, and improving network services to ensure optimal user experience and efficient resource utilization. Parameters Used to Measure Network Performance The following key parameters are used to measure network performance: Bandwidth − Maximum data transfer capacity Throughput − Actual data transfer rate achieved Latency − Time delay for ...
Read MoreWhat is the difference between an IP Camera and CCTV Camera?
Let us begin by understanding what an IP Camera is and how it differs from traditional CCTV cameras. IP Camera An IP camera is a network digital camera that uses the Internet Protocol (IP) and has its own unique IP address. IP cameras are commonly used in modern video surveillance systems for enhanced security monitoring. An IP camera uses an Ethernet cable to send digital signals over a network. This type of camera can be easily networked and can transmit signals to a network video recorder (NVR) located on either a local or remote network. IP ...
Read MorePPP over ATM (PPPoA)
PPP over ATM (PPPoA) is a data link layer protocol that transmits PPP data over ATM networks by encapsulating PPP frames in ATM Adaptation Layer 5 (AAL 5) frames. Point-to-Point Protocol (PPP) is a data link layer protocol used to transmit data between two directly connected computers. It is a byte-oriented protocol widely used in broadband communications with heavy loads and high speeds, standardized as RFC 1661. In Asynchronous Transfer Mode (ATM) networks, the ATM Adaptation Layer (AAL) provides facilities for non-ATM based networks to connect to ATM networks and use their services. The most widely deployed AAL ...
Read MoreExtended Simple Mail Transfer Protocol (ESMTP)
Extended Simple Mail Transfer Protocol (ESMTP) is an enhanced version of the standard Simple Mail Transfer Protocol (SMTP) that provides additional functionality and flexibility for email transmission between servers. While SMTP handles basic email delivery, ESMTP adds commands and features to support modern email requirements such as attachments, authentication, and encryption. ESMTP maintains backward compatibility with SMTP while introducing extensions that allow servers to negotiate capabilities and handle complex email formats. This makes it the primary protocol used by email servers worldwide for reliable message delivery. ESMTP Email Flow ...
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