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Articles by Satish Kumar
Page 20 of 94
Structure and Types of IP Address
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 MoreStreaming Stored Video
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 MoreStop Wi-Fi from stealing
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 MoreHow to Disable NetworkManager in CentOS/RHEL 8?
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 MoreHow to Disable IPv6 in RHEL, Rocky & AlmaLinux?
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 MoreSteps of Configuring the Router ID
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 MoreHow to Disable IPv6 in CentOS 8?
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 MoreStatus Code 400 in Web
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 MoreHow to Disable “su” Access for Sudo Users?
Introduction When it comes to system security, it is essential to restrict root access as much as possible, especially when multiple users have access to the system. One of the ways a user can gain root access is by invoking the “su” command. While the su command allows a user to switch from one user account to another, it can be misused or abused by users with sudo privileges. In this article, we will explain what “su” access for sudo users means, why it's important to disable "su" access for sudo users and how you can do this. ...
Read MoreStatic NAT (on ASA)
Introduction In today's interconnected world, network connectivity is critical for businesses and organizations of all sizes. However, connecting to the internet exposes your network to a number of security threats, including hacking attempts, malware infections, and data breaches. One essential tool in protecting your network from these threats is Static Network Address Translation (NAT). In this article, we'll take a closer look at what Static NAT is and why it's important for the Cisco Adaptive Security Appliance (ASA). Static NAT is a technique used to map an internal IP address to an external IP address ...
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