Securing access to AppStream

Question

Hi All,

I am currently working on an AppStream POC with the intention of streaming a web based application. I have the fleet sat in a private subnet with the intention of only allowing connections from our SIG (Zscaler). I was just looking for some advice for the best way to only allow access to the fleet from a specific IP. I have tried applying security group rules which only allow connections from the relevent IPs but I find I can still connect to the streaming instances from external networks.

Any advice / pointers would be appreciated!

Accepted Answer

AppStream 2.0 is a managed service with managed gateways. The fleet, while sitting in a private subnet or more, are streamed through public Gateways. There is another ENI on fleet instances that are dedicated for streaming and service health, which you cannot attach Security Groups to. Now, there is the option to stream through a VPC Endpoint, forcing streaming traffic through a VPC interface - https://docs.aws.amazon.com/appstream2/latest/developerguide/creating-streaming-from-interface-vpc-endpoints.html

Answer

This may be what you are looking for: [Creating and Streaming from Interface VPC Endpoints](https://docs.aws.amazon.com/appstream2/latest/developerguide/creating-streaming-from-interface-vpc-endpoints.html).

Securing access to AppStream

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