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Ensure that the instances are in a Public Subnet (a subnet with a Route Table that has an IGW as the default route). Ensure that network ACL (NACL) associated to the subnet and the security group associated to the instance allows the traffic.
As an additional measure, add VPC flow logs to troubleshoot and look for REJECTs to validate that traffic is being denied.
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- First thing you need to make sure the instance has a public IPv4 address: reference here
- Make sure the VPC where your instances reside has an Internet Gateway.
- Make sure the subnet where the instance resides has a route to the Internet Gateway, which makes the subnet a Public subnet.
- Refer to this guide. on how to configure security group and network access list.
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- 質問済み 6年前
AWS公式更新しました 1年前
I really hate to be this guy, but I don't know how to figure that out in AWS. I don't want to ask for my hand to be held, but I don't even know where to begin.