Shawn B it sounds like your issue might be related to this one, since it's fixed by restarting dnsmasq. Do you have the newer dnsmasq version (you need dnsmasq-base 2.76-4ubuntu0.1 or better)?
Just to note: it's definitely true that this bug will impact VPN users; that's how I ran into it. Basically, anything that causes changes to DNS configuration will hit this: so starting / stopping VPN and also suspend / resume. However, if your problem is solved by switching versions of NetworkManager then it's not this bug. Also if the problem is NOT solved by restarting dnsmasq then it's not this bug. In general, the above version of dnsmasq definitely fixes _this_ bug, so if you have that version and you're still seeing problems then it's not _this_ bug. You should file a new issue in Launchpad, with all the details you can obtain. Feel free to add a comment here with a link to the bug you create so people can follow it if they come here first. -- 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/1639776 Title: name resolution (dnsmasq) fails to send queries out after suspend/resume reconnects the interface Status in dnsmasq package in Ubuntu: Fix Released Status in network-manager package in Ubuntu: Invalid Status in dnsmasq source package in Xenial: Fix Released Status in network-manager source package in Xenial: Invalid Status in dnsmasq source package in Yakkety: Fix Released Status in network-manager source package in Yakkety: Invalid Status in dnsmasq package in Debian: Fix Released Bug description: [Impact] * suspend/resume (which involves disconnection of network devices) leads to dnsmasq failures. [Test Case] * suspend/resume on 16.04 or 16.10 when using dnsmasq, and see failures upon resume. [Regression Potential] * The fix was NMU'd in Debian in the version immediately after 16.10's. I believe the regression potential is very low as this is a clear bug-fix from upstream. --- Failure is caused by ENODEV return for all dns queries like: sendto(11, "\232\325\1\0\0\1\0\0\0\0\0\0\4mail\6google\3com\0\0\1\0"..., 33, 0, {sa_family=AF_INET, sin_port=htons(53), sin_addr=inet_addr("62.241.198.245")}, 16) = -1 ENODEV (No such device) Problem is reported and fixed: https://bugzilla.redhat.com/show_bug.cgi?id=1367772 http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commitdiff;h=2675f2061525bc954be14988d64384b74aa7bf8b I didn't yet test if applying that patch to ubuntu package works. I will try the patch in a few hours. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: dnsmasq-base 2.76-4 ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0 Uname: Linux 4.8.0-26-generic x86_64 ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: GNOME Date: Mon Nov 7 14:11:51 2016 InstallationDate: Installed on 2037-12-25 (-7718 days ago) InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) SourcePackage: dnsmasq UpgradeStatus: Upgraded to yakkety on 2016-10-21 (16 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1639776/+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
