AWS VPC and Additional Networking Services for Cloud/DevOps Engineers

In this post, we will cover the main Technologies from AWS Virtual Private Cloud(VPC) in Additional Networking Services.

VPC -> It is a foundational service that allows you to create a secure private network in the AWS cloud where you launch your resources.

Private virtual network
Launch resources inside the VPC(i.e. EC2 instances)
Isolate and protect resources
VPC spans AZs in a Region
Subnet -> Allows you to split the network inside the VPC. The exact where you launch your EC2 instance.
Network ACL (NACL) -> Access control lists(ACLs) ensure the proper traffic is allowed into the subnet.
Route Table and Router -> Defines where network traffic is routed.
Internet Gateway(GW) -> Allows public traffic to the internet from a VPC.
VPC peering -> Allows to connect 2 VPCs together.
- Peering facilitates the transfer of data in a secure manner.

Amazon Route 53 -> It is a DNS service that routes users to applications.
- Domain name registration
- Performs Health Checks on AWS resources
- Supports hybrid cloud architectures
AWS Direct Connect -> It is a dedicated physical network connection from your on-premises data centre to AWS.
- Dedicated physical network connection between on-premises DC and AWS
- Data flow over a private network
- Supports hybrid environment
- AWS Direct Connect in the Real World Scenarios:
  - Transfer large datasets to AWS
  - Transfer internal data directly to AWS, bypassing your internet service provider (Business critical data)
  - Build hybrid environment
AWS VPN -> Site-to-Site VPN creates a secure connection between your internal networks and AWS VPCs.
- Similar to Direct Connect, but data flows over the public internet
- Connects your on-premises DC to AWS
- Data is automatically encrypted
- Supports hybrid environment
- Site-to-Site VPN in the Real World Scenarios:
  - Makes moving applications to the cloud easier
API Gateway -> It allows you to build and manage APIs.
- Share data between systems
- Integrate with services(i.e. Lambda)
- API Gateway in the Real World Scenario:

Thank you for reading. I hope you were able to understand and learn something helpful from my blog.

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