<div dir="ltr"><div><div>Hello,<br><br></div>Thanks for the link to the Linux Foundation blog post about ntp and Chrony. I had been using ntp for years but will now switch to Chrony as its code base is more modern, secure, and maintainable. Also hoping to just run less code, and I like the sound of Chrony's simpler implementation.<br><br></div>As far as I can tell, systemd-timedated does not handle network time[0] itself. That is the responsibility of systemd-timesyncd, which is including in systemd 213 and up[1], but was disabled by RedHat in RHEL7 / CentOS 7 for whatever reason despite that distro shipping with systemd 219. For simplicity I do prefer systemd-timesyncd on modern Debian-based systems, however.<br><div><div><br>[0] <a href="https://www.freedesktop.org/wiki/Software/systemd/timedated/">https://www.freedesktop.org/wiki/Software/systemd/timedated/</a><br>[1] <a href="https://lists.freedesktop.org/archives/systemd-devel/2014-May/019537.html">https://lists.freedesktop.org/archives/systemd-devel/2014-May/019537.html</a><br><br></div><div>Cheers,<br></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, Jan 17, 2018 at 7:01 PM Patrick Goetz <<a href="mailto:pgoetz@math.utexas.edu">pgoetz@math.utexas.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On newer systemd-based systems you can just use timedatectl -- I find<br>
this does everything I need it to do. Although I think on RHEL/CentOS<br>
systems timedatectl is just set start chrony, or something like this.<br>
<br>
On 01/14/2018 08:11 PM, Lachlan Musicman wrote:<br>
> Hi all,<br>
><br>
> As part of both Munge and SLURM, time synchronised servers are necessary.<br>
><br>
> I keep finding chrony installed and running and ntpd stopped. I turn<br>
> chrony off and restart/enable ntpd but every CentOS point update it<br>
> seems to flip.<br>
><br>
> From what I've read ntpd is better for always on devices, and chrony's<br>
> been created for devices with a more intermittent access to a time<br>
> server/the internet.<br>
><br>
> What are people's thoughts and what are people using?<br>
><br>
> cheers<br>
> L.<br>
><br>
> ------<br>
> "The antidote to apocalypticism is *apocalyptic civics*. Apocalyptic<br>
> civics is the insistence that we cannot ignore the truth, nor should we<br>
> panic about it. It is a shared consciousness that our institutions have<br>
> failed and our ecosystem is collapsing, yet we are still here — and we<br>
> are creative agents who can shape our destinies. Apocalyptic civics is<br>
> the conviction that the only way out is through, and the only way<br>
> through is together. "<br>
><br>
> /Greg Bloom/ @greggish<br>
> <a href="https://twitter.com/greggish/status/873177525903609857" rel="noreferrer" target="_blank">https://twitter.com/greggish/status/873177525903609857</a><br>
<br>
</blockquote></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><p dir="ltr">Alan Orth<br>
<a href="mailto:alan.orth@gmail.com">alan.orth@gmail.com</a><br>
<a href="https://picturingjordan.com">https://picturingjordan.com</a><br>
<a href="https://englishbulgaria.net">https://englishbulgaria.net</a><br>
<a href="https://mjanja.ch">https://mjanja.ch</a></p>
</div>