Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Introduction The increasing demand for internet connectivity and the growth of networks have made it necessary to implement different strategies to optimize network performance. One of these strategies is supernetting, a method that allows network administrators to aggregate multiple IP addresses into a single address block. This article will delve into the concept of supernetting, its importance in the network layer, differences between subnetting and supernetting, and how to implement it. Supernetting is the process of aggregating multiple contiguous IP address blocks into a single larger block. It is also known as route summarization, address aggregation or prefix aggregation. ... Read More
Introduction The Internet has become an integral part of our lives, and we rely on it for communication, entertainment, and information. Every device that connects to the internet requires an IP address. An IP (Internet Protocol) address is a unique numerical identifier assigned to every device connected to a network that uses the Internet Protocol for communication. In this article, we will explore the structure and types of IP addresses used in networks today. An IP address is a unique numerical identifier assigned to every device connected to a network that uses the Internet Protocol. ... Read More
Introduction The way in which we consume media has undergone significant changes in recent years. Traditional cable and satellite television networks are no longer the only options for accessing video content. Streaming services have become increasingly popular, allowing users to access a vast library of movies, TV shows, and other types of video content on−demand. Streaming stored video is the process by which this digital content is transmitted to users over a network. Streaming stored video refers to the delivery of pre−recorded video content over a network without having to download it first. This process ... Read More
Introduction Wi−Fi stealing is a growing problem that can have serious consequences for individuals and businesses alike. In this article, we will explore the reasons why Wi−Fi stealing is a concern and provide tips on how you can protect your personal network from unauthorized access. Wi−Fi stealing, also known as "piggybacking, " occurs when someone gains unauthorized access to a wireless network without the owner's permission. This can happen when an individual intentionally or unintentionally connects to another person's Wi−Fi network without permission. What is Wi−Fi Stealing? The act of Wi−Fi stealing involves connecting to ... Read More
Introduction Firewalld is a dynamic firewall management tool that is included in CentOS 7. It replaces the previous iptables service as the default firewall tool for CentOS 7. Firewalld is designed to make it easier to manage firewall rules and provide more flexibility in defining policies and rulesets. The primary purpose of Firewalld on CentOS 7 is to protect your system from unauthorized access by blocking inbound traffic that does not match specific rules or policies. It also allows you to define different network zones with different levels of security based on the level of trust you have ... Read More
Introduction NetworkManager is a daemon that manages the network connections on Red Hat Enterprise Linux (RHEL) and its community-based counterpart, CentOS. It handles both wired and wireless connections, including ethernet, WiFi, mobile broadband, VPNs, and other network interfaces. The daemon provides a graphical user interface for managing network settings on desktop environments such as GNOME or KDE. NetworkManager is designed to automatically detect and configure connections based on the available network devices and their properties. It uses a variety of mechanisms to connect to networks dynamically, including DHCP (Dynamic Host Configuration Protocol), PPP (Point-to-Point Protocol), static IP addresses, etc. Additionally, ... Read More
In today's digital age, internet connectivity plays a crucial role in our day-to-day lives. In order to connect to the internet, we need an address that identifies us on the network. This is where IP addresses come into play. IPv4 (Internet Protocol version 4) is the fourth version of IP addresses and has been used for many years. However, as technology advances and more devices connect to the internet, the number of available IPv4 addresses is running out. That's why IPv6 was introduced. Explanation of What IPv6 Is and Why Someone May Want to Disable It IPv6 (Internet Protocol version ... Read More
Introduction When you configure a router, one of the most important things you need to do is define its identity by setting a unique router ID. A router ID is an IPv4 address that identifies each router on a network. It is used to establish neighbor relationships between routers and determine the shortest path for data to be forwarded between network segments. Understanding What a Router ID Is To configure your router's identity correctly, it's essential to understand what a router ID is. Simply put, a router ID serves as an identifier for each device in ... Read More
In today's modern world, the utilization of the Internet is essential for many businesses and individuals alike. The Internet Protocol (IP) is a fundamental communication protocol that is used to connect devices over the internet. Internet Protocol Version 6 (IPv6) was introduced in 1998 as an improvement over IPv4 and has since become more widely adopted. Explanation of what IPv6 is and why someone may want to disable it IPv6 provides several advantages over its predecessor, including a larger address space, improved security, and better network performance. However, there are situations where disabling IPv6 may be necessary. For example, some ... Read More
Introduction Status codes are an integral part of web development. Whenever a user requests a webpage, the server responds with a status code to indicate the success or failure of the request. One such status code is 400 − Bad Request. It is essential for developers and webmasters to have a clear understanding of this error code as it can negatively impact user experience and SEO rankings. Overview of HTTP Status Codes HTTP status codes are a vital part of the internet, providing feedback to users and developers on the status of web pages ... Read More