I need add a list of ip to my allowlist

Question

I am very new on AWS, I am using a cloud service for my site, now I am getting a 502 error and it said I need to verify that all QUIC.cloud IPs are in the allowlist on your server, I have not idea how I can do that, I am working with ans EC2 Linux instance. Can you please help me.

Thanks.

Answer

Hello.

When allowing connections with EC2, security group settings are relevant.  
You must ensure that the security group inbound rules configured on EC2 allow the required IP address and port number.  
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/working-with-security-groups.html#describing-security-group

There is also something called a subnet network ACL, but I think this is set to allow all communication if nothing is configured.  
https://docs.aws.amazon.com/vpc/latest/userguide/vpc-network-acls.html

I need add a list of ip to my allowlist

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