In yakkety there is no longer supposed to be a local forwarding nameserver (instance of dnsmasq) listening at 127.0.1.1. Instead an instande of resolved is started. Name resolution requests are fed to it via the name service switch (configured with nsswitch.conf) rather than via the libc resolver (configured with resolv.conf).
Announcement: https://lists.ubuntu.com/archives/ubuntu- devel/2016-May/039350.html Please post the output of the /usr/share/resolvconf/dump-debug-info utility. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1637700 Title: Caching dnsmasq stops resolving after some time Status in dnsmasq package in Ubuntu: New Status in network-manager package in Ubuntu: New Bug description: Since upgrading to yakkety my network sometimes stops working - it might be related to suspending the laptop. The NetworkManager-managed caching dnsmasq just stops resolving at some point: dig google.com @127.0.1.1 ; <<>> DiG 9.10.3-P4-Ubuntu <<>> google.com @127.0.1.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 22521 ;; flags: qr rd ra ad; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;google.com. IN A ;; Query time: 0 msec ;; SERVER: 127.0.1.1#53(127.0.1.1) ;; WHEN: Sat Oct 29 09:12:33 CEST 2016 ;; MSG SIZE rcvd: 28 Networking and upstream DNS are fine: dig google.com @8.8.8.8 ; <<>> DiG 9.10.3-P4-Ubuntu <<>> google.com @8.8.8.8 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63345 ;; flags: qr rd ra; QUERY: 1, ANSWER: 16, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;google.com. IN A ;; ANSWER SECTION: google.com. 299 IN A 46.134.208.30 [...] ;; Query time: 43 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Sat Oct 29 09:12:31 CEST 2016 ;; MSG SIZE rcvd: 295 Killing it resolves the issue, dnsmasq gets restarted and works again: ps aux | grep dnsmasq nobody 4262 0.0 0.0 54308 2740 ? S 01:30 0:00 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/var/run/NetworkManager/dnsmasq.pid --listen-address=127.0.1.1 --cache-size=0 --conf-file=/dev/null --proxy-dnssec --enable-dbus=org.freedesktop.NetworkManager.dnsmasq --conf-dir=/etc/NetworkManager/dnsmasq.d sudo kill 4262 dig google.com @127.0.1.1 ; <<>> DiG 9.10.3-P4-Ubuntu <<>> google.com @127.0.1.1 ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 58324 ;; flags: qr rd ra; QUERY: 1, ANSWER: 16, AUTHORITY: 0, ADDITIONAL: 1 ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;google.com. IN A ;; ANSWER SECTION: google.com. 299 IN A 46.134.208.59 [...] ;; Query time: 41 msec ;; SERVER: 127.0.1.1#53(127.0.1.1) ;; WHEN: Sat Oct 29 09:12:54 CEST 2016 ;; MSG SIZE rcvd: 295 ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: dnsmasq (not installed) ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0 Uname: Linux 4.8.0-26-generic x86_64 NonfreeKernelModules: zfs zunicode zcommon znvpair zavl ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Sat Oct 29 09:13:04 2016 InstallationDate: Installed on 2016-05-06 (175 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: dnsmasq UpgradeStatus: No upgrade log present (probably fresh install) --- ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity DistroRelease: Ubuntu 16.10 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-05-06 (175 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=false WWANEnabled=true NonfreeKernelModules: zfs zunicode zcommon znvpair zavl Package: network-manager 1.2.4-0ubuntu1 PackageArchitecture: amd64 ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0 Tags: yakkety third-party-packages Uname: Linux 4.8.0-26-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dialout dip libvirt libvirtd lpadmin lxd plugdev sambashare sbuild sudo vboxusers _MarkForUpload: True modified.conffile..etc.polkit-1.localauthority.50-local.d.org.freedesktop.NetworkManager.pkla: [deleted] nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.4 connected started full enabled enabled disabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1637700/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
