I just created a server using AWS Free tier. I have created a new Windows instance in Ireland. I just trying to pin the public IP but it doesn't response. I see that there are an "inbound" rules section, could you provide more info?
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To be able to ping an EC2 instance you will need to enable ICMP requests.
- Open the EC2 Console.
- Click on “Security Groups”. Choose the required security group.
- Click on the “Inbound” tab.
Add a new EC2 security group inbound rule:
Type: Custom ICMP rule - IPv4
Protocol: Echo request
Source: Anywhere (This will make your instance reply the requests from anywhere)
Also, I'd suggest reading the Amazon EC2 Security Group Guide to understand how it works and how it can help you to protect your applications and data.

Bruno Rubin
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