Vnet

Networking Basics for Cloud Architects In cloud projects, networking is the backbone that connects services, people, and partners. A clear network design helps apps scale, keeps data safer, and makes troubleshooting easier. This article covers the core ideas every cloud architect should know, from how addresses are planned to how to connect networks securely. Key building blocks These are the main parts you will use in most cloud networks: Virtual networks (VPCs or VNets) Subnets and segmentation Route tables and gateways NAT and outbound access Firewall rules and security groups Load balancers and DNS IP addressing with CIDR Private connectivity (VPN, ExpressRoute, Direct Connect) Peering and shared networks Observability: logs and metrics A simple pattern A common pattern is three tiers: public web in a front subnet, private app in a middle subnet, and a private data subnet. The web server talks to the app, and the app talks to the database. The public subnet uses an Internet gateway; the private subnets stay hidden from the Internet. Outbound connections from private subnets go through a NAT device or NAT gateway so servers can reach external services without exposing themselves. ...