Bug 85710 - RFE: timesyncd: add way how other dhcp implementations (i.e. not networkd) can inform timesyncd about NTP servers
Summary: RFE: timesyncd: add way how other dhcp implementations (i.e. not networkd) ca...
Status: NEW
Alias: None
Product: systemd
Classification: Unclassified
Component: general (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: systemd-bugs
QA Contact: systemd-bugs
Depends on:
Reported: 2014-10-31 17:54 UTC by Martin Gallant
Modified: 2014-12-08 23:39 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:


Description Martin Gallant 2014-10-31 17:54:18 UTC
systemd fails to set up timesyncd.service with the NTP server provided by DHCP.

I just tested this on systemd version 216-3 and 217-3 on Arch x86_64

I was referred here by the Arch Linux folks

Installing NetworkManager does not fix this issue - should a separate bug be filed here as well?

Steps to reproduce:
Pristine base install, rebooted # Use ip link to retrieve interface name
dhcpcd -T enps0s25 # Observe ntp_servers stanza in response
systemctl start dhcpcd@enps0s25
timedatectl set-ntp true # Start NTP client
timedatectl	# Confirm NTP is enabled and in	sync
journalctl -f # Observe NTP on default time*.google.com
Comment 1 Lennart Poettering 2014-11-02 18:03:55 UTC
Well, it does work with networkd's dhcp implementation.

However, there's no standardized way how a generic dhcp implementation like dhcpcd (which you appear to be using) could inform the rest of the system about the NTP servers it learnt.

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