I have setup an EC2 to use the time sync and want to use it as an 'NTP' server. I have setup the security group to allow all traffic in on 80,443, and 123 for now to test the configuration. It's in a public subnet with an elastic IP. There is also a route53 record. How can I configure external servers to point 169.254.169.123\or the route53 record to sync the time? Is this even possible?
I tried with my Mac to sync time by pointing to the elastic IP\route53 record without success.
Any help will be greatly appreciated! Thanks, Hau