Introduction to Regular Expressions: Common Syntax and Practical Examples
Common syntax for learning regular expressions: matching, grouping, quantifiers, character classes, with practical examples attached.
Classic ArticlesIntroduction to WebSocket Real time Communication: Comparison with HTTP Polling
Understanding the WebSocket protocol: the difference from traditional HTTP polling, suitable for real-time chatting and push notifications.
Classic ArticlesPrinciples of Database Indexing: B+Tree and Index Optimization Practice
Understand the underlying principles of database indexing: B+tree structure, and how to optimize indexing to improve query performance.
Classic ArticlesVPN Complete Guide: Comparison between Commercial VPN and Self built VPN
Compare commercial VPN and self built VPN: advantages and disadvantages, applicable scenarios, recommended solutions.
Classic ArticlesIntroduction to HTTPS and SSL/TLS Certificates: Let's Encrypt Free Certificate
Understand the working principle of HTTPS: SSL/TLS encryption, and apply for free certificates using Let's Encrypt.
Classic ArticlesSQL injection attack and defense: principles, detection, and repair
Understand the principles of SQL injection attacks and how to detect and defend against SQL injection vulnerabilities.
Classic ArticlesXSS Cross Site Script Attacks: Types, Hazards, and Defense
Understand the three types of XSS cross site scripting attacks: reflective, storage, DOM, and defense methods.
Classic ArticlesFirewall and WAF: Practical Application Firewall for Web Applications
Understanding WAF Web Application Firewall: Differences from Traditional Firewalls and Common WAF Products.
Classic ArticlesIdentity Authentication and SSO: Principles and Practices of Single Sign On
Understand the working principle of SSO single sign on: one login, access to all associated systems.
Classic ArticlesLog Audit and SIEM: Enterprise Security Log Platform
Understand SIEM security information and event management platform: collect, analyze, and alert security logs.