Network

HTTP GET is a method used by clients (such as web browsers) to request data from a server. When a client sends an HTTP GET request, it typically includes a URL (Uniform Resource Locator) specifying the resource it wants to retrieve. The server processes the request and responds with the requested resource, such as an … Read more

HTTP, or HyperText Transfer Protocol, is a fundamental protocol used for transmitting hypermedia documents, such as HTML pages, over the internet. It operates as a request-response protocol in a client-server model. Clients, typically web browsers, initiate requests to servers to retrieve resources like web pages or data. Servers respond to these requests by providing the … Read more

CDN, or Content Delivery Network, is a distributed network of servers strategically positioned across various geographic locations. Its primary purpose is to enhance the delivery of web content, such as images, videos, scripts, and other static assets, to users worldwide. CDNs are used to improve website performance by reducing latency and load times, thereby providing … Read more

TCP (Transmission Control Protocol) starts with a process called the TCP handshake. This handshake initializes and negotiates parameters between two devices (typically a client and a server) before data transmission begins. The TCP handshake involves three steps: SYN, SYN-ACK, and ACK. First, the client sends a SYN (synchronize) packet to the server to initiate a … Read more

An Intrusion Detection System (IDS) works by monitoring network traffic or system activities for malicious actions or policy violations. When such activities are detected, the IDS generates alerts to notify administrators of potential security breaches. The IDS analyzes incoming packets, logs, and other data for signs of suspicious behavior using predefined rules, heuristics, or anomaly … Read more

Netstat shows you a snapshot of current network connections and statistics on your system. It displays information such as active TCP connections, UDP ports in use, listening ports, routing tables, and network interface statistics. This data helps you understand which services are actively communicating over the network, which ports are open and listening for incoming … Read more

A Secure Shell (SSH) key, also known as an SSH key pair, consists of two cryptographic keys: a public key and a private key. These keys are used in SSH protocol for securely authenticating and establishing encrypted communication between a client (such as a computer or server) and a server (typically another computer or network … Read more

Network Access Devices refer to hardware components or devices that enable users or devices to connect to a network. These devices include network interface cards (NICs), routers, switches, access points, and modems, among others. Each type of network access device serves a specific function in enabling connectivity and facilitating data transmission within a network infrastructure. … Read more

An access point (AP) is a networking device that allows wireless devices to connect to a wired network using Wi-Fi. It serves as a central hub for wireless communication, enabling devices like laptops, smartphones, and tablets to access network resources and the internet without the need for physical wired connections. The process of an access … Read more

A modem, short for modulator-demodulator, is a device that enables digital data to be transmitted over analog communication channels. It converts digital signals from a computer or network into analog signals suitable for transmission over telephone lines, cable systems, or wireless networks, and vice versa. Here’s an overview of how a modem works: Signal Conversion: … Read more