Public bug reported: Seeing lots of those log entries. Here an example
Aug 24 20:14:36 M1 NetworkManager[748]: <error> [1440404076.494991] [dns-manager/nm-dns-dnsmasq.c:398] update(): dnsmasq owner not found on bus: Could not get owner of name 'org.freedesktop.NetworkManager.dnsmasq': no such name Aug 24 20:14:36 M1 dbus[792]: [system] Rejected send message, 10 matched rules; type="method_return", sender=":1.84" (uid=0 pid=3300 comm="/usr/sbin/dnsmasq --no-resolv --keep-in-foreground") interface="(unset)" member="(unset)" error name="(unset)" requested_reply="0" destination=":1.7" (uid=0 pid=748 comm="/usr/sbin/NetworkManager --no-daemon ") Attached info might help locating the issue. Thanks for any clues. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: dnsmasq 2.72-3ubuntu0.1 ProcVersionSignature: Ubuntu 3.19.0-26.28-generic 3.19.8-ckt4 Uname: Linux 3.19.0-26-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.17.2-0ubuntu1.3 Architecture: amd64 Date: Mon Aug 24 23:08:37 2015 InstallationDate: Installed on 2014-10-31 (297 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) PackageArchitecture: all SourcePackage: dnsmasq UpgradeStatus: No upgrade log present (probably fresh install) ** Affects: dnsmasq (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug vivid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to dnsmasq in Ubuntu. https://bugs.launchpad.net/bugs/1488056 Title: Rejected send message, 10 matched rules; type="method_return", sender=":1.84" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1488056/+subscriptions -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs