how to enable cloudwatch for capturing logs of incoming request for the app hosted certain ip address using port 8433

CloudWatch provides agent based log collection for application logs. You can find more information at the link below https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Install-CloudWatch-Agent.html

Additional content on observability can be found in the workshop: One observability workshop link below. https://catalog.workshops.aws/observability/en-US/use-cases/ec2-monitoring/install-ec2

Install wireshark on the Server or enable FlowLogs and capture headers