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
The main purpose of an IDS (Intrusion Detection System) is to monitor network traffic and system activities in real-time to detect and respond to potential security incidents or policy violations. IDS analyzes network packets, log files, and system events for signs of unauthorized access attempts, malware infections, or other suspicious activities. By generating alerts or … 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
NFC (Near Field Communication) tags are small, passive devices embedded with NFC chips that can store information and interact wirelessly with NFC-enabled devices like smartphones. These tags are used for a variety of purposes, including automating tasks, providing information, initiating actions, or enhancing user experiences through touch-based interactions. Common uses include triggering actions like launching … Read more
POP3 (Post Office Protocol version 3) works by allowing email clients to retrieve emails from a remote mail server to a local device. Here’s a step-by-step overview of how POP3 typically operates: Connection Establishment: The email client (e.g., Outlook, Thunderbird) initiates a connection to the POP3 server running on port 110 (or port 995 for … Read more
The switch method of change involves a framework introduced by Chip Heath and Dan Heath in their book “Switch: How to Change Things When Change is Hard.” It revolves around the metaphor of the human mind being like an elephant (the emotional side) and its rider (the rational side), both needing to cooperate to effect … Read more