Is there an NTP server I should be using when using Amazon's EC2 service to combat clock drift?

Question

I’m using AWS and am on an EC2 server …

[dalvarado@mymachine ~]$ uname -a
Linux mydomain.org 3.14.33-26.47.amzn1.x86_64 #1 SMP Wed Feb 11 22:39:25 UTC 2015 x         


        

Answer 1

Amazon documents NTP here. They include NTP configuration with their Amazon linux distributions. An Amazon instance that I have currently running lists these servers in /etc/ntp.conf, which is also what their documentation recommends:

server 0.amazon.pool.ntp.org iburst 
server 1.amazon.pool.ntp.org iburst
server 2.amazon.pool.ntp.org iburst 
server 3.amazon.pool.ntp.org iburst