Blog & Articles

Sharing my thoughts on technology, career development, and the latest trends in DevOps and software development.

Production Network Planning on Alibaba Cloud: Security Best Practices

A comprehensive guide to designing secure production networks on Alibaba Cloud, covering VPC design, security groups, network segmentation, and compliance considerations

alibaba-cloud network-security vpc

Sep 2, 2025 • Youqing Han

CentOS下Nginx配置地理访问控制：限制仅允许特定地区/国家访问

详细指南：在CentOS系统上配置Nginx实现地理访问控制，包括GeoIP模块、MaxMind数据库、防火墙规则等多种方法

nginx centos geoip

Sep 1, 2025 • Youqing Han

Kubernetes Best Practices for Production

Essential Kubernetes best practices for production environments, covering security, reliability, monitoring, and performance optimization

kubernetes production security

Aug 22, 2025 • Youqing Han