Even with removing 'ntp-servers' from /etc/dhcp/dhclient.conf, /var/lib/ntp/ntp.conf.dhcp is written out. Steps to reproduce:
Current: | ubuntu@juju-dca1e3-12:~$ ls -la /var/lib/ntp/ntp.conf.dhcp | -rw-r--r-- 1 ntp ntp 2804 Feb 23 2018 /var/lib/ntp/ntp.conf.dhcp Update removing 'ntp-servers': | ubuntu@juju-dca1e3-12:~$ sudo vi /etc/dhcp/dhclient.conf | (edit edit edit) Restart networking: | ubuntu@juju-dca1e3-12:~$ sudo service networking restart Confirm dhclient restarted: | ubuntu@juju-dca1e3-12:~$ ps afxuww | grep dhcl | root 2864 0.0 0.0 16132 928 ? Ss 04:41 0:00 /sbin/dhclient -1 -v -pf /run/dhclient.ens4.pid -lf /var/lib/dhcp/dhclient.ens4.leases -I -df /var/lib/dhcp/dhclient6.ens4.leases ens4 Check timestamp / date: | ubuntu@juju-dca1e3-12:~$ ls -la /var/lib/ntp/ntp.conf.dhcp | -rw-r--r-- 1 root root 2804 Oct 28 04:41 /var/lib/ntp/ntp.conf.dhcp It's actually because ntp_servers_setup_add() in /etc/dhcp/dhclient- exit-hooks.d/ntp writes that out no matter what. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ntp in Ubuntu. https://bugs.launchpad.net/bugs/1758775 Title: DHCP-received NTP servers override the configuration of the NTP charm Status in NTP Charm: Triaged Status in ntp package in Ubuntu: Confirmed Bug description: Example from GCE, but could be seen in MAAS/OpenStack or any other environment where NTP server addresses are supplied via DHCP: https://pastebin.ubuntu.com/p/TkjfzgbBhW/ When a user configures NTP with this charm, they should reasonably expect their configuration to be reliably applied rather than overridden by their cloud provider. To manage notifications about this bug go to: https://bugs.launchpad.net/ntp-charm/+bug/1758775/+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
