AWS VPC Fundamentals Part One: Core Networking Concepts & Security скачать в хорошем качестве

AWS VPC Fundamentals Part One: Core Networking Concepts & Security

Just covered Part One of AWS VPC Fundamentals in our Cloud Practitioner series - diving deep into virtual networking and security layers! What we learned: • VPC Evolution: From class-based addressing (A, B, C) to modern CIDR notation for flexible subnetting • VPC Fundamentals: Isolated AWS network spanning entire region, complete control over networking environment • IPv4 Pricing Update: New $0.005/hour charge per public IP (Feb 2024) - consider IPv6 migration strategies • CIDR Planning: Critical for scalability, non-overlapping blocks, AWS reserves 5 IPs per subnet • Subnet Architecture: Public (IGW access) vs Private (NAT Gateway outbound) for multi-tier security • Route Tables: Traffic direction control, most specific route wins, local routes always present • Internet & NAT Gateways: IGW for bidirectional access, NAT Gateway recommended over NAT Instance • Security Layers: Security Groups (stateful, instance-level) vs NACLs (stateless, subnet-level) • VPC Flow Logs: Network monitoring for troubleshooting, security analysis, compliance Key networking takeaway: VPC provides isolated cloud environment with complete networking control Proper CIDR planning and multi-AZ design essential for scalable, secure architectures with defense-in-depth security. Perfect foundation for understanding AWS networking and Cloud Practitioner exam prep! #aws #vpc #networking #cloudpractitioner #awscertification #cloudsecurity #cidr