Blog — Page 3
Posts
Page 3 of 3
Cloud Networking: VPC, subnets and firewalls
How to build a private cloud network: VPCs, subnets, gateways and firewalls, and how to decide what stays open to the internet and what stays protected.
Cloud Service Models: IaaS, PaaS, SaaS and FaaS
Four ways to use the cloud, from renting infrastructure to ready-made software: what each model delivers and who looks after what, on any provider.
Security and Shared Responsibility in the Cloud
The provider protects the cloud; you protect what you put in it. The division of responsibilities, IAM and least privilege, on any provider.
Latency
Why distance matters for the speed of a system: what latency is, where it comes from, how to measure it and how to reduce it, on any cloud.
Virtual Machines: from the dedicated server to the cloud
From the dedicated server to the cloud VM: what virtualization is, who looks after what, and what the cloud brought that traditional hosting didn't have.
Regions and Zones
Where the cloud really is: how regions and zones cut latency and keep one failure from taking everything down, on any provider.
Cloud Fundamentals
Why the cloud exists: the essential concepts that show up in any cloud certification, whether AWS, Azure, Google Cloud or Oracle Cloud.