How does EC2 hop to a publicly accessible RDS endpoint?

Hey team, say I have an RDS endpoint that's publicly available. I then access this endpoint from an EC2 instance.

What happens at the network layer? Does the request go to the public internet? Ideally, the system would know that the we're inside the same vpc and hop right over. How could I confirm this?

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网络和内容交付计算分析数据库

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亚马逊 VPC 亚马逊 EC2 网络和内容交付 Amazon Aurora

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English

stopa

已提问 1 年前297 查看次数

1 回答

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已接受的回答

Assuming your ec2 instance is in the same VPC as the RDS database, then it will route using the private subnet. You can confirm this by using nslookup from the ec2 instance, you should get the private ip address.

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philaws

已回答 1 年前

专家

Tushar_J

已审核 1 年前

Brettski-AWS 专家
1 年前
This is a good way to check which IP address (public or private) the EC2 instance is obtaining. I'd also note that I would not be making a RDS endpoint public - that's definitely not a good security practice.

How does EC2 hop to a publicly accessible RDS endpoint?

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