As the title discussed, how do I set Netwrok ACL on both ec2 instances to allow curl from one instance to another?

CodePudding user response：

For my case, the user data did not work for some reason when I creating the VM2 which would hosting Nginx servers. I manually installed the Nginx and ran it. For NACL: VM 1: Inbound/Outbound Customs TCP 1024-65535 IP of VM 2 Allow

VM 2 Inbound Custom TCP port of Nignx services IP of VM 1 Allow Outbound Custom TCP 1024-65535 IP of VM 1 Allow

I hope this help.