The server is set via a configuration file. The default config file is /etc/systemd/timesyncd.conf and it can be overridden by dropping files in /etc/systemd/timesyncd.conf.d/. There is a pool of free ntp servers available on https://www.ntppool.org/en/.
To test this fix you also need a DHCP server that returns NTP records. With VMs, you can use dnsmasq to provide NTP records by changing the values in dnsmasq.conf # Set the NTP time server addresses to 192.168.0.4 and 10.10.0.5 #dhcp-option=option:ntp-server,192.168.0.4,10.10.0.5 Or if you're using libvirt, edit the configuration with "virsh net-edit default" (or the name of the network your VMs are attached to) then pass the option directly to dnsmasq (cf https://libvirt.org/formatnetwork.html for reference) -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1933828 Title: NTP servers from DHCP are not propagated to timesyncd Status in OEM Priority Project: New Status in network-manager package in Ubuntu: New Status in network-manager source package in Focal: New Bug description: Network manager gets NTP servers from DHCP but do not update timesyncd to use it which keeps using ntp.ubuntu.com. This is a problem on private networks which do not have access to public internet. On this type of network the configuration of timesyncd must be updated manually instead of inheriting the conf from the dhcp servers. This can be integrated with a NM dispatcher script such as below: etc/NetworkManager/dispatcher.d/10-update-timesyncd for example: ==8<=====8<=====8<=====8<=====8<== #! /usr/bin/bash [ -n "$CONNECTION_UUID" ] || exit INTERFACE=$1 ACTION=$2 case $ACTION in up | dhcp4-change | dhcp6-change) [ -n "$DHCP4_NTP_SERVERS" ] || exit mkdir -p /etc/systemd/timesyncd.conf.d/ cat<<EOF > /etc/systemd/timesyncd.conf.d/$CONNECTION_UUID.conf [Time] NTP=$DHCP4_NTP_SERVERS RootDistanceMaxSec=15 EOF systemctl restart systemd-timesyncd ;; down) rm -f /etc/systemd/timesyncd.conf.d/$CONNECTION_UUID.conf systemctl restart systemd-timesyncd ;; esac ==8<=====8<=====8<=====8<=====8<== ProblemType: Bug DistroRelease: Ubuntu 21.10 Package: network-manager 1.30.0-1ubuntu3 ProcVersionSignature: Ubuntu 5.11.0-18.19+21.10.1-generic 5.11.17 Uname: Linux 5.11.0-18-generic x86_64 NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair ApportVersion: 2.20.11-0ubuntu67 Architecture: amd64 CasperMD5CheckResult: unknown CurrentDesktop: ubuntu:GNOME Date: Mon Jun 28 14:08:52 2021 InstallationDate: Installed on 2020-05-31 (393 days ago) InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Alpha amd64 (20200527) RebootRequiredPkgs: linux-image-5.11.0-20-generic linux-base SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.30.0 connected started full enabled enabled disabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1933828/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
