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Created December 23, 2022 09:25
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how to aws networking
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aws.md

AWS

VPC

define network

Subnet

  • by defautl every subnet is private
  • add NAT to public subnet
  • attach IGW to public subnet
  • enable auto elastic ip assignment for public subnet
  • attach route table to subnet

Route table

  • define rules to forwrads packets
  • define distinct route tables for different subnets
  • add route table IGW entry to allow internet access for public subnets

NAT

  • this component will allow private networks to access internet

Internet Gateway IGW

  • this component is enabling internet traffic for public subnets

EC2

actual machine

Security Group

  • firewall
  • provide inbound/outbound rules for EC2 instances, can be based on address or on security group
  • can be defined for portocol or specific port
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