Duplicate entry in AWS FreeBSD 12.0 ntp.conf

Rafal Lukawiecki raf at rafal.net
Wed Feb 20 00:09:16 UTC 2019


Thank you, Colin!

Rafal

> On 19 Feb 2019, at 23:28, Colin Percival <cperciva at tarsnap.com> wrote:
> 
> On 2/19/19 2:48 PM, Rafal Lukawiecki wrote:
>> I have just noticed that ntp.conf that comes in the AWS AMI for FreeBSD-12.0 (releng/12.0/usr.sbin/ntp/ntpd/ntp.conf 337649 2018-08-11 17:42:42Z brd) lists the AWS “server” twice, once on line 50, then again on line 96. I am not sure if that is on purpose, but it can lead to some confusion if one got changed but not the other.
> 
> Oops.  Not intentional, just an erroneous sed script.  Fixed in r344315.
> 
>> On another note, is there a reason to use chrony instead of ntpd if using the AWS ntp source, ie. 169.254.169.123?
> 
> Nope.  Chrony is what Amazon uses and it's what they recommend for anyone
> starting from a blank slate; but I discussed this with them and they agreed
> that since we ship with ntpd already installed it makes far more sense to
> use what we already have.
> 
> -- 
> Colin Percival
> Security Officer Emeritus, FreeBSD | The power to serve
> Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid



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