Networking in AWS
- Service in AWS which allows us to create networking is VPC (Virtual Private Cloud)
VPC
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VPC is a Network creation Service.
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VPC belongs to a Region
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Machines cannot be directly created in a Region, we need to create subnets in VPC
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Each Subnet belongs to Availability Zone
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All the communications between subnets are allowed by default
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VPC will not be connected to internet by default
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Communications between two vpc’s is not allowed by default
Internet Gateway
- If your VPC requires internet connection in a dual mode then we need internet gateway to be created and attached to VPC
Route Tables
- Route table are much like routers. In this route table you can define rules
Elastic Network Interface (ENI)
- ENI is an interface which connects to VM(Ec2 instance/rds instance) to the subnet
- IP Address will be assigned to ENI
