- 01 What is VPS? Advantages, Disadvantages, and Applications of Virtual Private Servers
- 02 What is SSH? Functions and How the SSH Protocol Works
- 03 What Is RFM? Customer Segmentation Model for E-Commerce
- 04 What is FTP? A Basic Guide to File Transfer Protocol
- 05 What Is a Recommendation System? How TikTok and Shopee Suggest Products
What is Ransomware? File Encryption Malware and Prevention
Ransomware is malware that encrypts files and demands a ransom payment to restore them. From WannaCry 2017 to LockBit 2023, ransomware costs billions annually. Learn the AES+RSA encryption mechanism, RaaS model, and 3-2-1 backup prevention strategy.
What is Nginx? Web server, reverse proxy, and load balancer in one
What is Nginx? A high-performance web server that also serves as a reverse proxy and load balancer, handling millions of requests per second. Learn about configuration, real-world use cases, and how it compares to Apache.
What is Cloud Hosting? A Complete Guide to Cloud Hosting
Cloud Hosting is a web hosting service built on cloud computing, distributing resources across multiple servers for high flexibility and uptime.
What is RAG? Retrieval-Augmented Generation — when AI knows how to look things up
RAG (Retrieval-Augmented Generation) is a technique that lets an LLM retrieve real documents before answering, reducing hallucination and keeping enterprise knowledge up to date in real time.
What is a Port? How to Check Ports on Windows
A port (network port) is a logical connection point that identifies a service on a computer. Learn about port classifications, security features, and how to check ports on Windows.
What is NTP? Understanding Network Time Protocol and Its Importance
Learn what NTP (Network Time Protocol) is, how it works, stratum levels, how to configure an NTP Server, and its importance in network systems.
What is Samba Server? Installation and Usage Guide for Samba Server
Samba Server is an open-source software that enables file and printer sharing between Windows, macOS, and Linux via the SMB protocol. Detailed installation and usage guide included.
What is PostgreSQL? The World's Most Advanced Open Source Relational Database
PostgreSQL is the leading open-source relational database management system, supporting ACID, MVCC, JSON/JSONB, and hundreds of extensions. Learn how to connect and query PostgreSQL with Python and Node.js.
What is SOAP? Exploring the Fundamental Concepts
Learn what SOAP is, XML message structure, how it works, SOAP vs REST comparison, and when to use SOAP for enterprise systems.
What is a Proxy? Forward Proxy, Reverse Proxy and SOCKS5 Explained
A proxy server is an intermediary between client and server. Learn the differences between Forward Proxy, Reverse Proxy, and SOCKS5 with real configuration examples for Squid and NGINX.
What is Oracle? A Beginner's Guide to Oracle Database
Oracle Database is the world's leading relational database management system. Learn about its architecture, key features, editions, and the pros and cons of Oracle Database.
What is SSL? The Role of SSL and How to Get a Free SSL Certificate
SSL (Secure Sockets Layer) is a security protocol that encrypts information between the browser and the web server. Learn about SSL certificate types, how to install them, and how to get a free SSL certificate.
