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Articles by sudhir sharma
Page 18 of 98
How to setup firewall in Linux?
Firewalls are an integral component of every contemporary computer system, safeguarding the network and protecting the system from illegal access. We'll take a deep dive into the realm of Linux firewalls and learn how to configure one in this post. Before we involve into the technical details of establishing a firewall in Linux, let us clarify what a firewall is and why it is so important! A firewall is a network security device that monitors and restricts network traffic based on predefined security rules. A firewall's principal function is to block unauthorised access to a computer system or network while ...
Read MoreHow to set up and use a proxy server?
In today's world, the internet has become an integral part of our daily lives. With its growing popularity, it's crucial to safeguard our online activities from potential threats. One of the most effective ways to achieve this is by using a proxy server. To start, let's define what a proxy server is. It acts as an intermediary between your device and the internet. Whenever you request a webpage, the request goes through the proxy server before reaching the internet. The server then sends the webpage back to your device. This process is invisible to the user and provides various benefits. ...
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. VoIP, or Voice over Internet Protocol, is a technology that enables phone conversations to be made over the internet. Not only is VoIP cheaper than traditional phone services, but it also delivers superior call quality and a range of innovative capabilities. We'll guide you through the steps of establishing a VoIP phone at home in this article. Step 1: Selecting a VoIP Service Provider The first step in installing a VoIP phone at home is selecting a VoIP service ...
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. We all utilise numerous websites and programmes to do these duties, whether it's online shopping, social networking, or internet banking. While the internet has made our lives easier, it has also introduced new vulnerabilities like as cross-site scripting (XSS), cross-site request forgery (CSRF), and cross-site resource forgery (XSRF). These flaws may cause severe harm, ranging from data theft to website defacement, and can even endanger people's lives. In this post, we'll look at how you may limit your vulnerability to these assaults. What are XSS, ...
Read MoreHow to Read a Traceroute?
Traceroute is a robust network diagnostic tool that assists you in analysing network performance and diagnosing network issues. You may map out the path that your network traffic travels from your computer to a remote server using traceroute, and find any bottlenecks or other difficulties along the way. Recognizing Traceroute Before learning how to interpret a traceroute, you should first grasp how it works. When you perform a traceroute, it transmits data packets with increasing time-to-live (TTL) values to the destination server. Each router along the way decrements the TTL value, and if it reaches zero, the router sends an ...
Read MoreHow To Prevent Ransomware Attack?
Ransomware is a type of malware that has been a growing threat to individuals, organizations, and governments worldwide. Ransomware encrypts the victim's files and demands a ransom in exchange for the decryption key. The ransom can be a significant amount of money, and paying it does not guarantee the recovery of the encrypted data. In this article, we will explore how to prevent ransomware attacks and protect your data from this malicious threat. Keep Your Software Up to Date Keeping your software up to date is an essential step in preventing ransomware attacks. Software developers regularly release updates to fix ...
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 an attacker ...
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 the Belgian company, Marc Ochsenmeier, and is widely used by malware analysts, software developers, and security researchers around the world. We will provide an overview of what PeStudio is, how it works, features it provides to its users. The article also includes limitations and recent advancements of PeStudio. What is PeStudio? PeStudio is a tool that provides users with a detailed analysis of executable files, specifically those running on Windows operating systems. The software ...
Read MoreFibre Channel Protocol
Fibre Channel Protocol (FCP) is a communication protocol designed to provide fast and dependable data transfers between servers and storage devices in storage area networks (SANs). History of FCP FCP was first introduced in the early 1990s as a outcome of a deal between the tech giants among IBM, HP, and Sun Microsystems. The protocol was designed to improve upon the limitations of previous communication protocols used in SANs, such as SCSI, and to enable higher-speed data transfers. How FCP Works As mentioned, FCP is a layered protocol that operates at the transport and session layers of the OSI model. ...
Read MoreNetwork Hubs
A network hub is a common networking device that allows multiple devices to communicate with each other. Hubs are used in local area networks (LANs) to connect devices together, such as computers, printers, and servers. This article will explore the basics of network hubs, including how they work, the different types of hubs available, their advantages and disadvantages, their challenges and advancements. What is a Network Hub? A network hub is a central connection point for multiple devices in a LAN. It operates at the physical layer of the OSI model, which is responsible for transmitting data across a network. ...
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