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Cloud Journal

Cloud Journal

Practical, provider-accurate writing on cloud infrastructure, developer workflows, security fundamentals and the decisions behind choosing a cloud.

All topics AI Infrastructure Cloud Fundamentals Cloud Migration Developer Workflows DevOps & Automation Infrastructure & Networking Provider Guides Security Fundamentals Startups & Business Storage & Data
Diagram of an Alibaba Cloud ECS instance inside a VPC with a vSwitch, security group and attached cloud disks
Provider Guides

Alibaba Cloud ECS Basics for International Developers

Alibaba Cloud ECS is familiar in shape but has its own naming, its own bandwidth billing choices and two separate platforms. This guide covers instance families, images and disks, VPC networking, purchase modes and a practical aliyun CLI walkthrough.

7 min read
Layered diagram showing platform firewall, subnet filter, host firewall and application filtering
Security Fundamentals

Cloud Firewalls and Security Groups Explained

Security groups, network security groups, VPC firewall rules and cloud firewalls are the same idea with different names. This guide…

6 min read