Some potentially relevant lines from journal: When I woke the machine up and resolving didn't work.
paź 29 09:09:17 michal-laptop dnsmasq[4262]: setting upstream servers from DBus When I tried to reconnect the network, but that didn't help. paź 29 09:09:22 michal-laptop dnsmasq[4262]: setting upstream servers from DBus paź 29 09:09:22 michal-laptop dnsmasq[4262]: using nameserver 10.2.0.1#53(via enx00133b4909cd) And when I killed dnsmasq: paź 29 09:12:50 michal-laptop NetworkManager[3485]: <warn> [1477725170.2579] dns-mgr: plugin dnsmasq child quit unexpectedly paź 29 09:12:50 michal-laptop NetworkManager[3485]: <info> [1477725170.2580] dns-plugin[0x5648fb2f88d0]: starting dnsmasq... paź 29 09:12:50 michal-laptop NetworkManager[3485]: <info> [1477725170.2602] dns-mgr: Writing DNS information to /sbin/resolvconf paź 29 09:12:50 michal-laptop dnsmasq[22108]: started, version 2.76 cache disabled paź 29 09:12:50 michal-laptop dnsmasq[22108]: compile time options: IPv6 GNU-getopt DBus i18n IDN DHCP DHCPv6 no-Lua TFTP conntrack ipset auth DNSSEC loop-detect inotify paź 29 09:12:50 michal-laptop dnsmasq[22108]: DBus support enabled: connected to system bus paź 29 09:12:50 michal-laptop dnsmasq[22108]: warning: no upstream servers configured paź 29 09:12:50 michal-laptop NetworkManager[3485]: <info> [1477725170.2706] dnsmasq[0x5648fb2f88d0]: dnsmasq disappeared paź 29 09:12:50 michal-laptop NetworkManager[3485]: <info> [1477725170.2707] dns-mgr: Writing DNS information to /sbin/resolvconf paź 29 09:12:50 michal-laptop NetworkManager[3485]: <info> [1477725170.3627] dnsmasq[0x5648fb2f88d0]: dnsmasq appeared as :1.2273 paź 29 09:12:50 michal-laptop dnsmasq[22108]: setting upstream servers from DBus paź 29 09:12:50 michal-laptop dnsmasq[22108]: using nameserver 10.2.0.1#53(via enx00133b4909cd) After that things are back in order. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to dnsmasq 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/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
