Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: systemd (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1759150
Title:
systemd stopped resolving after back from suspend
Status in systemd package in Ubuntu:
Confirmed
Bug description:
I noted it after back from suspend, but could happens on other
conditions:
systemd-resolved stopped resolving.
<code>
$ host google.com 127.0.0.53
Using domain server:
Name: 127.0.0.53
Address: 127.0.0.53#53
Aliases:
Host google.com not found: 2(SERVFAIL)
</code>
But resolved service is active without problems.
<pre>
● systemd-resolved.service - Network Name Resolution
Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled;
vendor preset: enabled)
Active: active (running) since Tue 2018-03-27 09:27:46 CEST; 11min ago
Docs: man:systemd-resolved.service(8)
https://www.freedesktop.org/wiki/Software/systemd/resolved
https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
Main PID: 11822 (systemd-resolve)
Status: "Processing requests..."
Tasks: 1 (limit: 4915)
CGroup: /system.slice/systemd-resolved.service
└─11822 /lib/systemd/systemd-resolved
Mar 27 09:28:01 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:28:06 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:28:42 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:29:07 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:29:11 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:30:11 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:30:32 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:30:37 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:38:10 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
Mar 27 09:38:15 myhostname systemd-resolved[11822]: Got packet on unexpected
IP range, refusing.
</pre>
I checked the network traffic:
<pre>
09:38:15.476106 IP 10.66.57.54.48901 > 127.0.0.53.53: 7013+ A? google.com.
(28)
09:38:15.476205 IP 127.0.0.53.53 > 127.0.0.1.48901: 7013 ServFail [0q] 0/0/0
(12)
</pre>
And resolv service works fine:
<pre>
$ systemd-resolve google.com
google.com: 216.58.214.174
-- Information acquired via protocol DNS in 7.2ms.
-- Data is authenticated: no
</pre>
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: systemd 234-2ubuntu12.3
ProcVersionSignature: Ubuntu 4.13.0-37.42-generic 4.13.13
Uname: Linux 4.13.0-37-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Mar 27 09:34:21 2018
InstallationDate: Installed on 2018-02-16 (38 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20180105.1)
MachineType: Apple Inc. MacBookPro11,4
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-37-generic.efi.signed
root=/dev/mapper/ubuntu--vg-root ro quiet splash
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/08/2017
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP114.88Z.0177.B00.1708080033
dmi.board.name: Mac-06F11FD93F0323C5
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro11,4
dmi.chassis.type: 9
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-06F11FD93F0323C5
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP114.88Z.0177.B00.1708080033:bd08/08/2017:svnAppleInc.:pnMacBookPro11,4:pvr1.0:rvnAppleInc.:rnMac-06F11FD93F0323C5:rvrMacBookPro11,4:cvnAppleInc.:ct9:cvrMac-06F11FD93F0323C5:
dmi.product.family: MacBook Pro
dmi.product.name: MacBookPro11,4
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
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