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Choosing the right way to connect with your clients depends mainly on their location and your needs. Here’s an easy-to-understand guide with the best options.
If your clients are on Amazon Web Services (AWS), the simplest way to connect is by using AWS PrivateLink. This involves creating a special network endpoint called a VPC Endpoint Service for your software, which is backed by a Network Load Balancer. Your customers can then set up Interface VPC Endpoints inside their own VPCs to access your service privately. The benefits of this approach include not needing direct VPC routing between your network and theirs, having control over which AWS accounts can use your service, compatibility even if IP addresses overlap, no requirement for clients to have internet access, and easier management across multiple accounts.
For clients who are on their own premises or on other cloud platforms, you’ll need to combine AWS PrivateLink with VPN connections. For bigger companies, setting up a Site-to-Site VPN connection creates a dedicated landing point in a separate VPC for each major customer. Smaller clients can share a VPN endpoint and landing VPC, allowing multiple customers to connect securely.
Avoid deploying your software in client clouds or using simple VPC peering. These options create complicated maintenance and don’t scale well, plus VPC peering doesn’t give the security and isolation benefits that PrivateLink does.
A good best practice is to create one Endpoint Service for each product or service you offer. If your clients operate in different regions, set up an Endpoint Service for each region too. This modular setup makes it easy to grow your offerings and expand geographically while keeping your infrastructure secure and scalable, and ensuring each client’s environment is isolated.
For more detailed information, check out resources like AWS’s community guides, official documentation, or AWS re:Post articles to help you implement these solutions smoothly.
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