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Amazon EC2 Cookbook by Aurobindo Sarkar, Sekhar Reddy

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Creating and configuring VPC

In this section, we present the recipe to create and configure a VPC. You can assign a single Classless Inter-Domain Routing (CIDR) block to the VPC. The allowed block size is between a /28 (16 IP addresses) net mask and /16 (65536 IP addresses) net mask. Public and private subnets are specified to build multitier applications. To access the Internet from a private subnet, we have to use Network Address Translation (NAT) instance in the public subnet. Each subnet must be associated with a routing table. Each route in the routing table contains the destination CIDR network range and a target Internet gateway/virtual private gateway.

To access the Internet the EC2 instance must either have an Elastic IP (EIP) address ...

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