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If you want to access AWS services securely from your own network without going through the internet, you can set up AWS PrivateLink. This allows your Virtual Private Cloud (VPC) to connect privately to AWS services, keeping your traffic inside your network.
Here’s how you can do this in simple steps:
First, create an Interface VPC Endpoint for the AWS service you need. Instead of using public endpoints that require internet access, this sets up a private connection using network interfaces within your VPC. This way, your data stays inside your network and doesn’t travel on the public internet.
Next, choose specific subnets in different Availability Zones for deploying these endpoint network interfaces. It’s best to pick at least two zones to ensure your connection stays active even if one zone faces issues. This adds extra reliability to your setup.
Then, enable private DNS support during the creation of the VPC endpoint. This feature creates a private DNS zone inside your network, so you can keep using the usual public DNS names for AWS services without any disruption. Make sure your VPC has DNS hostnames and DNS support enabled for this to work properly.
Finally, set security groups for your endpoint’s network interfaces. These security groups control who can access the private connection. If you don’t specify one, the default security group assigned to your VPC will be used.
Once you complete these steps, traffic destined for AWS services will go through private IP addresses within your network. This setup keeps your communication secure, fast, and isolated from the internet. It’s a great way to build a highly secure and efficient environment for your applications.
Sources:
- Access AWS services through AWS PrivateLink – Amazon VPC documentation
- Access a service network through a service-network endpoint – Amazon VPC documentation
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