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Designing a Secure Multi-VPC Architecture with AWS Transit Gateway and IGW

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 Preface In an AWS cloud Proof of Concept (PoC), Transit Gateway (TGW) and Internet Gateway (IGW) are key to secure, scalable and efficient communication between different VPCs and external networks. Transit Gateway (TGW) is a central routing hub where multiple VPCs can communicate without the complexity of multiple VPC peering connections. It simplifies network management, scales and enforces security policies through route tables to control traffic between connected VPCs. Internet Gateway (IGW) is required for outbound and inbound internet access for resources in public subnets. It allows public facing workloads like web servers and APIs to talk to external services while keeping private subnets secure through NAT Gateways . Together TGW and IGW provide a structured and controlled networking environment, so critical workloads are secure, isolated when needed and connected efficiently in a multi-VPC architecture. POC  The proposed Proof of Concept (PoC) focuses on estab...

Behind the Facebook Outage: How AWS Peering Challenges Could Disrupt Global Connectivity

  Facebook Outage: March 2024   On March 5, 2024 , Facebook experienced a significant outage that affected users worldwide, disrupting access to the platform for several hours. The outage was attributed to a technical issue with the company's infrastructure, causing both the website and the mobile app to become inaccessible. This incident led to widespread frustration among users, businesses, and advertisers who rely on the platform for communication and marketing. The company quickly acknowledged the problem and worked diligently to resolve it, ultimately restoring services later in the day. The outage highlighted the challenges and vulnerabilities of managing a massive global network and underscored the importance of robust contingency planning for digital platforms.                                   Fig : 1 Ping r...