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I have a Windows Server in AWS EC2. I have opened ports 80 and 443 to 0.0.0.0/0, and RDP to a private IP address for VPN access. The instance has 4 total elastic IP addresses, each mapping to a private IP address on the instance via an EC2 Network Interface. I want to close port 80 to all traffic on one of the IP addresses, but leave it open to the other three. Is this possible in AWS/VPC?

Here's the current table...

Private    | Public  | Ports Open
------------------------------------
10.0.0.220 | x.x.x.1 | 80, 443, 3389
10.0.0.221 | x.x.x.2 | 80, 443, 3389
10.0.0.223 | x.x.x.3 | 80, 443, 3389
10.0.0.224 | x.x.x.4 | 80, 443, 3389

Here's the goal...

Private    | Public  | Ports Open
------------------------------------
10.0.0.220 | x.x.x.1 | 80, 443, 3389
10.0.0.221 | x.x.x.2 | 80, 443
10.0.0.223 | x.x.x.3 | 80, 443
10.0.0.224 | x.x.x.4 | 443

Thank you!

Philip Ferreira
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  • Have you tried a security group? You can assign a security group to a specific interface if I remember correctly. – NetRay Nov 02 '15 at 18:21

1 Answers1

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The solution as suggested by @NetRay was to create additional Security Groups, each with the ports rules needed, and then create new Network Interfaces and apply those to Security Groups to the interfaces as needed.

Philip Ferreira
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