Thursday, 19 January 2017

What are the steps to build a custom VPC?

Below are the steps of build a custome VPC:

1. Create a VPC
2. Create subnets
3. Create an internet gateway (IGW)
4. Attach the new IGW to your VPC
5. Create a new route table (RT)
6. Add the IGW as a route to the new RT
7. Add a subnet to the RTs subnet associations (this will be the public facing subnet)
8. Create web server (public subnet) and database server (private subnet) instances

9. Create a new security group for the NAT instance
10. Add HTTP and HTTPS inbound rules that allow traffic from the private subnets IP
11. Create a NAT instance (public subnet)

  • Community AMIs
  • Search for amzn-ami-vpc-nat
  • Choose the first image
  • Diable Auto-assign Public IP
  • Add it to the NAT security group

12. Create an Elastic IP
12. Associate the Elastic IP to the NAT
13. Disable Source/Destination Checks for the NAT
14. Add the NAT instance as a route to the initial VPC RT

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