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#chrony

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Aptivi<p>Ubuntu 25.10 Questing Quokka will use chrony to replace systemd-timesyncd to improve security.</p><p><a href="https://mastodon.social/tags/Ubuntu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Ubuntu</span></a> <a href="https://mastodon.social/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Linux</span></a> <a href="https://mastodon.social/tags/UbuntuLinux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UbuntuLinux</span></a> <a href="https://mastodon.social/tags/Computers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Computers</span></a> <a href="https://mastodon.social/tags/Laptops" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Laptops</span></a> <a href="https://mastodon.social/tags/TechNews" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TechNews</span></a> <a href="https://mastodon.social/tags/TechUpdates" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TechUpdates</span></a> <a href="https://mastodon.social/tags/chrony" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>chrony</span></a> <a href="https://mastodon.social/tags/QuestingQuokka" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>QuestingQuokka</span></a></p><p><a href="https://officialaptivi.wordpress.com/2025/05/24/ubuntu-25-10-questing-quokka-will-use-nts-by-default/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">officialaptivi.wordpress.com/2</span><span class="invisible">025/05/24/ubuntu-25-10-questing-quokka-will-use-nts-by-default/</span></a></p>
Scott Laird<p>Huh. Now that I have <a href="https://hachyderm.io/tags/otel" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>otel</span></a> traces on a bunch of things at home, it's pretty clear that my clocks aren't in sync on every system. They're maybe 1ms off, but it's enough that supposedly-nested trace spans aren't quite nested right.</p><p>Which is annoying since I have two local GPS <a href="https://hachyderm.io/tags/NTP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NTP</span></a> receivers.</p><p>The two "bad" machines were using <a href="https://hachyderm.io/tags/systemd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>systemd</span></a>-timesyncd to talk to Ubuntu's pool clocks instead of the local clocks. The "good" machines are using <a href="https://hachyderm.io/tags/chrony" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>chrony</span></a> and claim that they're ~2 us off of GPS time.</p><p>Now I'm curious -- is this a problem with network latency and Ubuntu's pool, or is that just as good as timesyncd gets?</p>
adingbatponder<p><span class="h-card" translate="no"><a href="https://federated.channel/profile/mark" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>mark</span></a></span> <span class="h-card" translate="no"><a href="https://mastodon.radio/@M0CUV" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>M0CUV</span></a></span> Perhaps some info here on clocks via GPS, very tantalising rabbit hole.... <br><a href="https://openwrt.org/docs/guide-user/services/ntp/gps" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">openwrt.org/docs/guide-user/se</span><span class="invisible">rvices/ntp/gps</span></a><br><a href="https://github.com/domschl/RaspberryNtpServer" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/domschl/RaspberryNt</span><span class="invisible">pServer</span></a><br><a href="https://github.com/tiagofreire-pt/rpi_uputronics_stratum1_chrony" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/tiagofreire-pt/rpi_</span><span class="invisible">uputronics_stratum1_chrony</span></a><br><a href="https://fosstodon.org/tags/gps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>gps</span></a> <a href="https://fosstodon.org/tags/stratum1" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>stratum1</span></a> <a href="https://fosstodon.org/tags/ntp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ntp</span></a> <a href="https://fosstodon.org/tags/chrony" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>chrony</span></a> <a href="https://fosstodon.org/tags/ntpd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ntpd</span></a></p>
Thomas Mielke :verified:<p>Habe mal wieder ein neues Nerd-Projekt: Ein eigener Stratum 1 NTP-Zeitserver. Warum? Weil es geht. Die Daten kommen per GPS und haben dadurch eine Genauigkeit im Bereich von Nano-Sekunden. Der Testaufbau läuft, jetzt muss ich nur noch ein passendes Gehäuse drucken und eventuell die Antenne noch draußen positionieren.</p><p><a href="https://mielke.social/tags/NTP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NTP</span></a> <a href="https://mielke.social/tags/Zeitserver" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Zeitserver</span></a> <a href="https://mielke.social/tags/RaspberryPi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RaspberryPi</span></a> <a href="https://mielke.social/tags/Chrony" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Chrony</span></a></p>
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