*** This bug is a duplicate of bug 1727237 ***
https://bugs.launchpad.net/bugs/1727237
** This bug has been marked a duplicate of bug 1727237
systemd-resolved is not finding a domain
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https://bugs.launchpad.net/bugs/1725680
Title:
DNS name resolution doesn't work on Artful
Status in systemd package in Ubuntu:
Confirmed
Bug description:
If I boot my laptop with a live image or an installation of Ubuntu
17.10, DNS name resolution doesn't work (which means I can't access
any website).
Steps to reproduce:
- Boot laptop with Ubuntu 17.10 live image
- Connect to my wireless network
- Try to ping any website, e.g. ping ubuntu.com. This immediately fails with
the error message "Name or service not known"
- Try to ping an IP-adress, e.g. ping 8.8.8.8 : this works.
As a workaround, I can get a temporarily working DNS resolution by
manually editing /etc/resolv.conf (symlink to /run/systemd/resolve
/stub-resolve.conf) and setting the "nameserver" entry to 8.8.8.8 or
some other known DNS server.
On Ubuntu 17.04 this bug is not present.
The original address in /run/systemd/resolve/stub-resolve.conf is
127.0.0.53 . I get immediate replies if I ping this address, but
nevertheless DNS resolution doesn't work.
It seems that the service systemd-networkd isn't active by default:
$ sudo systemctl status systemd-networkd
● systemd-networkd.service - Network Service
Loaded: loaded (/lib/systemd/system/systemd-networkd.service; disabled;
vendo
Active: inactive (dead)
Docs: man:systemd-networkd.service(8)
Manually starting it doesn't seem to help for this bug.
systemd-resolved is active:
$ sudo systemctl status systemd-resolved
● systemd-resolved.service - Network Name Resolution
Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled;
vendor
Active: active (running) since Sat 2017-10-21 12:13:12 UTC; 44min ago
Docs: man:systemd-resolved.service(8)
https://www.freedesktop.org/wiki/Software/systemd/resolved
https://www.freedesktop.org/wiki/Software/systemd/writing-network-con
https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-cl
Main PID: 1095 (systemd-resolve)
Status: "Processing requests..."
Tasks: 1 (limit: 4915)
CGroup: /system.slice/systemd-resolved.service
└─1095 /lib/systemd/systemd-resolved
Okt 21 12:13:12 ubuntu systemd[1]: Starting Network Name Resolution...
Okt 21 12:13:12 ubuntu systemd-resolved[1095]: Positive Trust Anchors:
Okt 21 12:13:12 ubuntu systemd-resolved[1095]: . IN DS 19036 8 2
49aac11d7b6f644
Okt 21 12:13:12 ubuntu systemd-resolved[1095]: . IN DS 20326 8 2
e06d44b80b8f1d3
Okt 21 12:13:12 ubuntu systemd-resolved[1095]: Negative trust anchors:
10.in-add
Okt 21 12:13:12 ubuntu systemd-resolved[1095]: Using system hostname 'ubuntu'.
Okt 21 12:13:12 ubuntu systemd[1]: Started Network Name Resolution.
Kind regards,
Jan
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: systemd 234-2ubuntu12
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CasperVersion: 1.387
Date: Sat Oct 21 12:26:00 2017
ExecutablePath: /lib/systemd/systemd-resolved
LiveMediaBuild: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
MachineType: Acer Extensa 5635Z
ProcEnviron:
LANG=C.UTF-8
PATH=(custom, no user)
ProcKernelCmdLine: file=/cdrom/preseed/hostname.seed boot=casper
initrd=/casper/initrd.lz quiet splash --- maybe-ubiquity
SourcePackage: systemd
SystemdDelta:
[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
2 overridden configuration files found.
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/14/2009
dmi.bios.vendor: Phoenix
dmi.bios.version: V0.3305
dmi.board.name: BA50-MV
dmi.board.vendor: Acer
dmi.board.version: Not Applicable
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenix:bvrV0.3305:bd08/14/2009:svnAcer:pnExtensa5635Z:pvrNotApplicable:rvnAcer:rnBA50-MV:rvrNotApplicable:cvnAcer:ct10:cvrN/A:
dmi.product.name: Extensa 5635Z
dmi.product.version: Not Applicable
dmi.sys.vendor: Acer
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