The "cloud" lives in specific buildings in specific towns. Choosing the wrong one means your European users wait 200 extra milliseconds, your company violates GDPR, or your app goes down because a single county in Virginia had a bad morning.
A VPC is your own private data center inside someone else's building—without the building. Learn how cloud providers give you isolated network space with your own addressing, routing, and security controls.
VPC peering creates private network connections between isolated cloud environments—letting resources communicate without exposing traffic to the public Internet.
Transit Gateways solve the combinatorial explosion of network connections—replacing the tangled web of mesh peering with a single hub that every network speaks through.
How cloud networks solve the tension between hiding from the Internet and talking to it—using Internet gateways for public-facing instances and NAT gateways for everything else.
A load balancer is a beautiful lie—your users think they're talking to one server when they're actually talking to fifty. Here's how cloud providers pull off this sleight of hand.
Private Link creates endpoints in your network that make external services appear internal—no public Internet, no exposure, just private IP addresses that happen to reach the cloud.
How AWS lets you build networks that act like private data centers but scale like the cloud—VPCs, subnets, load balancers, and the components that make it all work.
Azure networking makes more sense when you understand the design decisions behind it. Why five reserved IPs per subnet? Why are NSGs and ASGs separate? When do you use Private Link instead of Service Endpoints?
GCP networking reflects Google's global infrastructure: VPCs span all regions by default, firewall rules use tags instead of instance-based groups, and Premium Tier routes traffic through Google's private backbone.
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