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Articles by Satish Kumar
Page 76 of 94
Binary Synchronous Communication (BISYNC)
Binary Synchronous Communication (BISYNC) is a character-oriented communication protocol developed by IBM that uses synchronous transmission to transfer data between devices. In BISYNC, data is transmitted in structured blocks called frames, which include control characters for synchronization and error detection. BISYNC was designed to provide reliable data communication by using a complex set of control characters to manage data flow and maintain synchronization between sender and receiver. The protocol uses either EBCDIC or ASCII encoding for character representation and was commonly used with 3270 terminals for mainframe communication. BISYNC Frame Structure ...
Read MoreBirman Schiper Stephenson Protocol
The Birman-Schiper-Stephenson (BSS) Protocol is a distributed computing protocol designed to maintain consistent shared state across a group of computers despite potential failures. First described by Michael Birman, Roger Schiper, and Tom Stephenson in 1985, this protocol provides a robust foundation for distributed systems requiring fault tolerance and consistency guarantees. In the BSS Protocol, each computer acts as a replica maintaining a copy of the shared state. The replicas communicate through message passing operations, coordinated by a circulating token that serves as a marker for the current state. This token-based approach ensures orderly state updates and maintains consistency across ...
Read MoreBootstrap Protocol (BOOTP)
The Bootstrap Protocol (BOOTP) is a legacy computer networking protocol used to automatically assign IP addresses to devices on a network. BOOTP was developed in the 1980s as a way to assign IP addresses to diskless workstations without the need for manual configuration. BOOTP operates by allowing a device to broadcast a request for an IP address on the network. The BOOTP server, which is typically a router or a dedicated server, receives the request and assigns a static IP address to the device based on its MAC address. The device then uses the assigned IP address to communicate ...
Read MorePost Office Protocol, Version 3 (POP3)
Post Office Protocol version 3 (POP3) is a standard email protocol used by email clients to retrieve messages from a mail server. It operates as a simple, text-based protocol that downloads emails from the server to the client device for local storage and management. POP3 follows a straightforward client-server model where the email client connects to the server, authenticates the user, downloads available messages, and then typically deletes them from the server. This makes it ideal for single-device email access scenarios. How POP3 Works POP3 operates through a series of commands exchanged between the email client and ...
Read MoreBreaking Cryptography
Breaking cryptography refers to the process of attempting to decrypt encrypted data without authorized access to the secret key. This involves exploiting weaknesses in cryptographic algorithms, implementations, or systems to recover plaintext from ciphertext. Cryptanalysis encompasses various attack methods, each targeting different aspects of cryptographic systems. Understanding these techniques is crucial for both security professionals and system administrators to implement robust encryption practices. Common Cryptographic Attack Methods Brute Force Attack − Systematically trying all possible secret keys until the correct one is found. The effectiveness depends on key length and computational resources. Ciphertext-Only ...
Read MoreWhat is Webmail?
Webmail is a type of email service that allows users to access and manage their email messages through a web browser. Instead of using a dedicated email client like Microsoft Outlook or Apple Mail, users can log in to their email account using a web-based interface and perform tasks like reading and sending email, organizing messages into folders, and managing their contacts. Webmail is convenient because it can be accessed from any device with an internet connection and a web browser, without the need to install any software. This makes it particularly useful for users who need to access ...
Read More10 IT Networking Protocols Skills to Land Your Dream Job
In the world of information technology (IT), networking protocols are essential skills for landing your dream job. Whether you are a beginner or an experienced IT professional, mastering networking protocols is a must-have skill for anyone who wants to succeed in the IT industry. This article explores the most important networking protocols that will give you a competitive edge in today's job market. What are IT Networking Protocols? IT networking protocols are a set of rules and standards that determine how data is transmitted over a computer network. These protocols establish connections between devices and ensure that data ...
Read MoreBooks to read on networking and microcontrollers
Networking and microcontrollers have become essential technologies in our modern connected world, with the growing demand for Internet of Things (IoT) devices, smart homes, and embedded systems. Whether you're a student, hobbyist, or professional engineer, the right books can provide comprehensive knowledge and practical insights into these complex fields. This curated collection covers both foundational networking concepts and hands-on microcontroller programming, offering resources for beginners through advanced practitioners looking to expand their expertise. Essential Networking Books "TCP/IP Illustrated, Volume 1: Protocols" by W. Richard Stevens TCP/IP Illustrated is the definitive guide to the TCP/IP protocol suite, ...
Read More20 Useful Apache '.htaccess' Tricks to Secure and Customize Websites
Apache is one of the most popular web servers in the world, used by millions of websites to serve content to users. One of its most powerful features is the ability to use .htaccess files to customize and secure websites. An .htaccess file is a simple text file that can be placed in a website's root directory to control various aspects of the server's behavior. Password Protect a Directory To protect a directory on your website with a password, use the following .htaccess code: AuthType Basic AuthName "Restricted Area" AuthUserFile /path/to/passwords/file Require valid-user Replace ...
Read MoreAccess Networks
Access networks are the means by which Internet Service Providers (ISPs) provide internet connectivity to their customers. They represent the final part of the infrastructure that connects end-users to the internet. Access networks can be wired or wireless and have different characteristics that make them suitable for various applications. Access Network Architecture End User Access Network ISP Core Internet Home/Office ...
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