Unable to Ping an EC2 Instance
https://techdirectarchive.com/2023/03/26/unable-to-ping-an-ec2-instance/
#EC2Instance, #ICMP, #InboundRules, #Layer3Protocols, #NACL, #NetworkAccessControlList, #Rule, #SecurityGroups, #TCP, #UDP, #UnableToPingAnEC2Instance, #VPC