Virtual Local Area Network (VLAN) A VLAN, or Virtual Local Area Network, is a logical segmentation of a physical network allowing multiple groups of devices to be separated into distinct broadcast domains even if they share the same physical infrastructure. In simple words, imagine you have a big school with lots of classrooms and manyContinue reading “Network Terminology”
Category Archives: Networking
The Role of NTP Servers in Information Security: Why Accurate Time Matters
In the world of cybersecurity, we often focus on firewalls, intrusion detection systems, encryption algorithms, and endpoint defenses. Yet, one of the most fundamental elements of a secure and reliable IT infrastructure is often overlooked: time synchronization. This is where the Network Time Protocol (NTP) server comes into play. NTP is more than just aContinue reading “The Role of NTP Servers in Information Security: Why Accurate Time Matters”
Pretty Good Privacy (PGP)
Understanding Pretty Good Privacy (PGP) and Its Importance in the Digital Age In our increasingly digital world, the security and privacy of communication have become paramount. With the constant threat of cyberattacks, surveillance, and data breaches, individuals and organizations are looking for reliable ways to protect their sensitive information. One of the most well-regarded toolsContinue reading “Pretty Good Privacy (PGP)”
SSL vs TLS: An Information Security Perspective
It is no longer something extra — in the present digital world, security of data is needed more than ever. Many organizations and individuals focus on the security of their online communications, and often the subjects of SSL (Secure Sockets Layer) and TLS (Transport Layer Security) arise. Although SSL and TLS can be mentioned inContinue reading “SSL vs TLS: An Information Security Perspective”
Proxy vs VPN
What is Proxy? An internet proxy (or proxy server) is an intermediary system that sits between your device and the internet. When you use a proxy, your internet requests (like visiting a website) are first sent to the proxy server. The proxy then forwards these requests to the destination website or online service on yourContinue reading “Proxy vs VPN”
WiFi Security
WiFi is an acronym for ‘Wireless Fidelity’ which is one of methods by which computer/device may connect to the internet with out the use of wires. This is a technique of communication between the devices like routers, Computers, tablets, smartphones and other related hardware it makes use of radio frequencies. Security Risks and WiFi ThreatsContinue reading “WiFi Security”
Near Field Communication (NFC)
Near Field Communication, or NFC, is a short-range wireless communication technology that enables devices to interact with each other within a close proximity, typically within a few centimeters. It operates at a frequency of 13.56 MHz and can be used for various applications, such as contactless payment systems, secure access control, and data sharing between devicesContinue reading “Near Field Communication (NFC)”
Net Sec Challenge
What is the highest port number being open less than 10,000? 8080 There is an open port outside the common 1000 ports; it is above 10,000. What is it? 10021 How many TCP ports are open? 6 What is the flag hidden in the HTTP server header? THM{web_server_25352} What is the flag hidden in theContinue reading “Net Sec Challenge”
Client Server Architecture
Client server architecture is a distributed architecture that helps to divide workloads between client and server. In the client server architecture, when the client sends the request to server over internet, the server validates the request and responses to that. Advantages All dat in centralized at one place. Cost efficient Data recovery possible. Capacity canContinue reading “Client Server Architecture”
OSI Model
The Open Systems Interconnect model (OSI Model) explains all the individual functions that are necessary for the Internet to work. Physical Layer The Physical layer of the OSI model is responsible for the transfer of bits — the 1’s and 0’s which make up all computer code. Physical Layer is anything that carries 1’s andContinue reading “OSI Model”
