Hello MarcH, or anyone else affected, Accepted systemd into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/systemd/245.4-4ubuntu3.5 in a few hours, and then in the -proposed repository.
Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users. If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, what testing has been performed on the package and change the tag from verification-needed- focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-focal. In either case, without details of your testing we will not be able to proceed. Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping! N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days. ** Changed in: systemd (Ubuntu Focal) Status: New => Fix Committed ** Tags added: verification-needed-focal -- 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/1880258 Title: Add trailing dot to make connectivity-check.ubuntu.com. absolute and reduce NXDOMAIN warning noise Status in network-manager package in Ubuntu: Fix Released Status in systemd package in Ubuntu: Fix Committed Status in network-manager source package in Bionic: New Status in systemd source package in Bionic: Fix Committed Status in network-manager source package in Focal: Confirmed Status in systemd source package in Focal: Fix Committed Status in network-manager source package in Groovy: New Status in systemd source package in Groovy: Fix Committed Status in network-manager source package in Hirsute: Fix Released Status in systemd source package in Hirsute: Fix Committed Bug description: [impact] systemd-resolved emits a disturbingly large amount of NXDOMAIN log messages that do not actually indicate any real problem [test case] see original description, or look at any log from any recent Ubuntu system, or search google for endless complaints about NXDOMAIN messages logged by Ubuntu [regression potential] any regression would likely be isolated to systemd-resolved handling of a NXDOMAIN response from its upstream nameserver, including possibly failing to resolve a hostname or delays in resolving hostnames [scope] this is needed for all releases; the patch is not upstream, but carried by Ubuntu [original description] I normally don't like this, but it's a one-character change so it's easier to start with the solution: diff -u -r1.1 /usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf --- /usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf +++ /usr/lib/NetworkManager/conf.d/20-connectivity-ubuntu.conf @@ -1,2 +1,2 @@ [connectivity] -uri=http://connectivity-check.ubuntu.com/ +uri=http://connectivity-check.ubuntu.com./ Making this name absolute instead of relative avoids spurious resolutions of "connectivity-check.ubuntu.com.your_domain." This removes a fair amount of NXDOMAIN error noise in journalctl. Observing the issue and the fix requires 3 terminals: 1. tcpdump -i any 'port domain' 2. journalctl --boot -u systemd-resolved -f 3. nmcli c down "Wired connection 1"; nmcli c up "Wired connection 1" => observe the NXDOMAIN noise over a couple few minutes Now make the hostname absolute with the trailing dot above and run: systemctl reload NetworkManager Wait 1 min for things to stabilize. Test again: nmcli c down "Wired connection 1"; nmcli c up "Wired connection 1" => observe non-zero but significantly reduced NXDOMAIN noise over a couple few minutes Originally reported at https://askubuntu.com/a/1242611/117217 Plenty of people annoyed by NXDOMAIN warnings, just Google it. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1880258/+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