please reopen if this is still an issue
** Changed in: systemd (Ubuntu)
Status: New => Invalid
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https://bugs.launchpad.net/bugs/1767669
Title:
Systemd-resolved cannot forget local DNS Domain name after leaving the
network
Status in systemd package in Ubuntu:
Invalid
Bug description:
At my university, WiFi network setup sets a local DNS Domain name (in
a form of <university-name>.<country-tld>). That's alright; but when I
come home with my laptop and resume it, the local DNS Domain name is
still set (checked via systemd-resovle --status), and because of that
I cannot open my university website: it's domain cannot be resoved on
a local DNS (of course it cannot be resolved, it's not in local
network anymore). Resolving manually on any other DNS server (via dig
@<providers DNS or 1.1.1.1 or 8.8.8.8>) works perfectly fine.
Resolving any non-local name works fine too. DNS resolver IP's are
right. Restarting systemd-resolved or-and NetworkManager does not fix
the issue, only the full reboot can help. That's pretty annoying.
I am running Ubuntu 17.10 (soon to be upgraded to 18.04). Have this
issue since installing 17.10, but wasn't able to find a clue until
today.
What should be happening: Well, after I leave the network, resolver
should forget local settings from that network, right?
What is happeing: it does not. Well, at least the resolver ip's are
right.
P.S. It might be a NetworkManager issue but the only thing that I find
that remembers local DNS is the systemd-resolved, feel free to change
package.
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: systemd 234-2ubuntu12.3
ProcVersionSignature: Ubuntu 4.13.0-39.44-generic 4.13.16
Uname: Linux 4.13.0-39-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.8
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Apr 28 18:26:01 2018
InstallationDate: Installed on 2016-04-23 (734 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
(20160420.1)
MachineType: ASUSTeK Computer Inc. U40Sd
ProcEnviron:
LANG=ru_RU.UTF-8
TERM=tmux-256color
SHELL=/bin/bash
XDG_RUNTIME_DIR=<set>
PATH=(custom, user)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-39-generic
root=UUID=ea1ac96c-71bd-4b8e-81ad-24abb9a24ce0 ro nogpumanager quiet splash
vt.handoff=7
SourcePackage: systemd
SystemdDelta:
[EXTENDED] /lib/systemd/system/docker.service →
/etc/systemd/system/docker.service.d/docker.conf
[EXTENDED] /lib/systemd/system/rc-local.service →
/lib/systemd/system/rc-local.service.d/debian.conf
[EXTENDED] /lib/systemd/system/user@.service →
/lib/systemd/system/user@.service.d/timeout.conf
3 overridden configuration files found.
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 06/16/2011
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: U40Sd.202
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: U40Sd
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrU40Sd.202:bd06/16/2011:svnASUSTeKComputerInc.:pnU40Sd:pvr1.0:rvnASUSTeKComputerInc.:rnU40Sd:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.family: U
dmi.product.name: U40Sd
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.
mtime.conffile..etc.systemd.resolved.conf: 2018-04-19T19:34:54.154657
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