Secure deployment of EC2 instance. Accessing the private instance via public instance to reduce the risk level of the servers.
STEP 1: Create a VPC.
STEP 2: Create two subnets inside the VPC “demo-vpc”
Both the subnets are private until connecting to the internet gateway.
STEP 3: Create an IG [Internet Gateway] and attach it to the VPC.
STEP 4: Check the Route Table and confirm the IG attached properly.
STEP 5: Create a Public EC2 instance by attaching the VPC, subnet, and assign public IP.
STEP 6: Create a Private EC2 instance by attaching the VPC and subnet alone. Disable public IP.
STEP 7: Attach the public instance security group as a source in the private instance.
Now, two instances are configured, one is private [Public IP not assigned] and another one is public.
STEP 8: Change the key permission and try accessing the private instance [172.16.2.186] from the public instance [172.16.1.126].
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