I can reproduce this in yakkety with ntp 1:4.2.8p8+dfsg-1ubuntu2 and apparmor 2.10.95-4ubuntu5. It is due to Yakkety's use of systemd- resolved, which is used by the nss-resolve plugin to resolve hostnames.
** Summary changed: - incomplete apparmor definition for ntpd + AppArmor nameservice abstraction doesn't allow communication with systemd-resolve -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apparmor in Ubuntu. https://bugs.launchpad.net/bugs/1598759 Title: AppArmor nameservice abstraction doesn't allow communication with systemd-resolved Status in AppArmor: In Progress Status in apparmor package in Ubuntu: Triaged Status in ntp package in Ubuntu: Invalid Bug description: On this plain install of Xenial apparmor complains about ntpd: [ 19.379152] audit: type=1400 audit(1467623330.386:27): apparmor="DENIED" operation="connect" profile="/usr/sbin/ntpd" name="/run/dbus/system_bus_socket" pid=4513 comm="ntpd" requested_mask="wr" denied_mask="wr" fsuid=121 ouid=0 [ 20.379299] audit: type=1400 audit(1467623331.386:28): apparmor="DENIED" operation="connect" profile="/usr/sbin/ntpd" name="/run/dbus/system_bus_socket" pid=4513 comm="ntpd" requested_mask="wr" denied_mask="wr" fsuid=121 ouid=0 [ 22.426246] audit: type=1400 audit(1467623333.434:29): apparmor="DENIED" operation="connect" profile="/usr/sbin/ntpd" name="/run/dbus/system_bus_socket" pid=4513 comm="ntpd" requested_mask="wr" denied_mask="wr" fsuid=121 ouid=0 [ 22.771326] audit: type=1400 audit(1467623333.782:30): apparmor="DENIED" operation="connect" profile="/usr/sbin/ntpd" name="/run/dbus/system_bus_socket" pid=4513 comm="ntpd" requested_mask="wr" denied_mask="wr" fsuid=121 ouid=0 [ 23.568548] audit: type=1400 audit(1467623334.574:31): apparmor="DENIED" operation="connect" profile="/usr/sbin/ntpd" name="/run/dbus/system_bus_socket" pid=4513 comm="ntpd" requested_mask="wr" denied_mask="wr" fsuid=121 ouid=0 Adding the following line to /etc/apparmor.d/usr.sbin.ntpd fixes the problem: #include <abstractions/dbus-strict> To manage notifications about this bug go to: https://bugs.launchpad.net/apparmor/+bug/1598759/+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
