Fresh boot of Artful (static IP via network manager and DNS should be at
192.168.1.1) -> NetworkManager has integration with systemd-resolved and
thus should pass DNS information to resolved.
Could you please show your NetworkManager configuration for the network
in question?
** Also affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1720976
Title:
no DNS resolution via systemd
Status in network-manager package in Ubuntu:
New
Status in systemd package in Ubuntu:
New
Bug description:
1)
root@dimension:/home/bp1# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu Artful Aardvark (development branch)
Release: 17.10
Codename: artful
root@dimension:/home/bp1#
2)
systemd:
Installed: 234-2ubuntu10
Candidate: 234-2ubuntu10
Version table:
*** 234-2ubuntu10 500
500 http://gb.archive.ubuntu.com/ubuntu artful/main amd64 Packages
100 /var/lib/dpkg/status
3) DNS resolution
4) No DNS resolution from my configured DNS (in my case 192.168.1.1)
Workarounds:
Enable FallbackDNS=8.8.8.8 8.8.4.4 in resolved.conf
Or running dhclient
Fresh boot of Artful (static IP via network manager and DNS should be
at 192.168.1.1):
bp1@dimension:~$ ifconfig
enp8s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.5 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 fe80::99f:fae5:1467:a576 prefixlen 64 scopeid 0x20<link>
ether 00:1e:4f:e9:f1:c1 txqueuelen 1000 (Ethernet)
RX packets 141 bytes 14707 (14.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 234 bytes 29807 (29.8 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 16
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 556 bytes 33758 (33.7 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 556 bytes 33758 (33.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
bp1@dimension:~$ ping www.dn.se
ping: www.dn.se: Name or service not known
bp1@dimension:~$ su
Password:
root@dimension:/home/bp1# systemd-resolve --status
Global
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
31.172.in-addr.arpa
corp
d.f.ip6.arpa
home
internal
intranet
lan
local
private
test
Link 2 (enp8s0)
Current Scopes: LLMNR/IPv4 LLMNR/IPv6
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
root@dimension:/home/bp1# ping www.dn.se
ping: www.dn.se: Name or service not known
root@dimension:/home/bp1# nano /etc/systemd/resolved.conf
root@dimension:/home/bp1# cat /etc/systemd/resolved.conf
# This file is part of systemd.
#
# systemd is free software; you can redistribute it and/or modify it
# under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or
# (at your option) any later version.
#
# Entries in this file show the compile time defaults.
# You can change settings by editing this file.
# Defaults can be restored by simply deleting this file.
#
# See resolved.conf(5) for details
[Resolve]
#DNS=
FallbackDNS=8.8.8.8 8.8.4.4
#Domains=
#LLMNR=yes
#MulticastDNS=yes
#DNSSEC=no
#Cache=yes
#DNSStubListener=udp
root@dimension:/home/bp1# ps ax | grep systemd
254 ? Ss 0:00 /lib/systemd/systemd-journald
292 ? Ss 0:00 /lib/systemd/systemd-udevd
573 ? Ssl 0:00 /lib/systemd/systemd-timesyncd
585 ? Ss 0:00 /lib/systemd/systemd-networkd
701 ? Ss 0:00 /lib/systemd/systemd-logind
735 ? Ss 0:00 /usr/bin/dbus-daemon --system --address=systemd:
--nofork --nopidfile --systemd-activation
844 ? Ss 0:00 /lib/systemd/systemd-resolved
1138 ? Ss 0:00 /lib/systemd/systemd --user
1219 ? Ss 0:00 /usr/bin/dbus-daemon --session --address=systemd:
--nofork --nopidfile --systemd-activation
1531 ? Ss 0:00 /lib/systemd/systemd --user
1678 pts/0 S+ 0:00 grep --color=auto systemd
root@dimension:/home/bp1# kill -HUP 844
root@dimension:/home/bp1# ping www.dn.se
PING e12723.a.akamaiedge.net (23.217.10.201) 56(84) bytes of data.
64 bytes from a23-217-10-201.deploy.static.akamaitechnologies.com
(23.217.10.201): icmp_seq=1 ttl=58 time=27.4 ms
^C
--- e12723.a.akamaiedge.net ping statistics ---
1 packets transmitted, 1 received, 0% packet loss, time 0ms
rtt min/avg/max/mdev = 27.478/27.478/27.478/0.000 ms
root@dimension:/home/bp1# systemd-resolve --status
Global
DNS Servers: 8.8.8.8
8.8.4.4
DNSSEC NTA: 10.in-addr.arpa
16.172.in-addr.arpa
168.192.in-addr.arpa
17.172.in-addr.arpa
18.172.in-addr.arpa
19.172.in-addr.arpa
20.172.in-addr.arpa
21.172.in-addr.arpa
22.172.in-addr.arpa
23.172.in-addr.arpa
24.172.in-addr.arpa
25.172.in-addr.arpa
26.172.in-addr.arpa
27.172.in-addr.arpa
28.172.in-addr.arpa
29.172.in-addr.arpa
30.172.in-addr.arpa
31.172.in-addr.arpa
corp
d.f.ip6.arpa
home
internal
intranet
lan
local
private
test
Link 2 (enp8s0)
Current Scopes: LLMNR/IPv4 LLMNR/IPv6
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
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