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Articles by sudhir sharma
Page 3 of 98
Introduction to Host Names: Understanding the Basics
In the world of computers and the internet, host names are a critical component of how devices connect to each other. A host name is a unique identifier assigned to a device or server on a network, used to identify and locate devices on the internet or any other network. What is a Host Name? A host name is a label assigned to a device on a network. It consists of a combination of letters, numbers, and hyphens, usually assigned by an administrator or network manager. Host names are case-insensitive, meaning "mydevice" and "MyDevice" are treated as identical. ...
Read MoreUniversal Asynchronous Receiver Transmitter (UART) Protocol
The Universal Asynchronous Receiver Transmitter (UART) protocol is a widely used serial communication standard in electronics and microcontroller systems. UART enables simple, reliable data transmission between two devices using minimal hardware resources, making it a fundamental protocol in embedded systems. How UART Works UART operates by converting parallel data from a device into a serial bit stream for transmission. The protocol uses asynchronous communication, meaning devices don't share a common clock signal. Instead, they rely on predefined timing agreements (baud rates) and special framing bits to synchronize data transmission. UART Data Frame Structure ...
Read MoreThe PACELC theorem
The PACELC theorem is an extension of the famous CAP theorem that provides a more comprehensive framework for understanding trade-offs in distributed systems. While CAP focuses on Consistency, Availability, and Partition tolerance, PACELC adds considerations for Latency and Consistency during normal operations. The theorem states: if there is a network partition (P), a system must choose between availability (A) and consistency (C); else (E), when the system is running normally without partitions, there is a trade-off between latency (L) and consistency (C). Understanding PACELC Components Partition Tolerance (P) Partition tolerance ensures the system continues functioning even when ...
Read MoreWhat is PeStudio
PeStudio is a popular and powerful software analysis tool that allows users to analyze executable files for various Windows operating systems. The software was developed by Marc Ochsenmeier and is widely used by malware analysts, software developers, and security researchers worldwide. This article provides an overview of what PeStudio is, how it works, and the features it provides to its users. We'll also explore its importance in cybersecurity and malware analysis. What is PeStudio? PeStudio is a static analysis tool that provides users with a detailed examination of Windows Portable Executable (PE) files without executing them. The ...
Read MoreHow To Modify MAC address in Windows 10 (Both Wired and Wireless Adapter)?
MAC address modification in Windows 10 allows you to change the unique hardware identifier of your network adapters. This can be useful for network troubleshooting, privacy protection, or testing network configurations. Both wired (Ethernet) and wireless adapters support MAC address changes through the Device Manager. Modifying MAC Address for Wired Adapter Step 1: Access Device Manager Right-click on the Start button and select Device Manager from the context menu. Alternatively, press Windows key + X and choose Device Manager from the power user menu. Step 2: Locate Network Adapter In Device Manager, expand the Network ...
Read MoreHow to Prevent Broken Access Control?
As more and more services move online, the importance of access control becomes increasingly clear. Access control refers to the processes that limit the ability of unauthorized individuals or entities to access resources, whether those resources are software, data, or physical spaces. Broken access control is one of the most common vulnerabilities in software, and it's also one of the most damaging. In this article, we'll explore what broken access control is, what its consequences can be, and most importantly, how to prevent it. What is Broken Access Control? Broken access control refers to a situation in which ...
Read MoreHow To Prevent Ransomware Attack?
Ransomware is a type of malware that encrypts victim's files and demands payment in exchange for the decryption key. This growing threat affects individuals, organizations, and governments worldwide, often demanding significant ransom payments without guaranteeing data recovery. Prevention through proactive security measures is the most effective defense against these attacks. Ransomware Attack Prevention Framework Software Updates & Patch Management Strong Authentication & Access Control Data Backups & Recovery Plans ...
Read MoreHow to Read a Traceroute?
Traceroute is a network diagnostic tool that maps the path data packets take from your computer to a destination server, helping identify bottlenecks and network issues along the route. When you run a traceroute, it sends packets with incrementally increasing Time-To-Live (TTL) values. Each router decrements the TTL, and when it reaches zero, the router returns an "ICMP time exceeded" message. This process repeats until packets reach the destination, revealing every router in the path. Traceroute Path Discovery Source ...
Read MoreHow to Reduce Risk of Exposure to CSRF, XSRF, or XSS Attacks?
We all rely extensively on the internet for our daily activities in today's digital world. Whether it's online shopping, social networking, or internet banking, we utilize numerous websites and applications to accomplish these tasks. While the internet has made our lives easier, it has also introduced new vulnerabilities such as Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), and Cross-Site Resource Forgery (XSRF). These vulnerabilities can cause severe damage, ranging from data theft to website defacement, and can even compromise personal and organizational security. Understanding XSS, CSRF, and XSRF Attacks These web security vulnerabilities are among the most ...
Read MoreHow to Set Up a VoIP Phone at Home?
If you want to save money on your phone bills, setting up a VoIP phone at home is a great alternative to traditional landline services. VoIP (Voice over Internet Protocol) is a technology that enables phone conversations to be made over the internet rather than traditional phone lines. Not only is VoIP cheaper than conventional phone services, but it also delivers superior call quality and a range of innovative features like video calling, call recording, and advanced call routing. VoIP Phone Setup Overview VoIP Phone or ATA ...
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