Public bug reported:
On boot, I can see systemd-resolve is configured properly; the router
(192.168.1.254) is listed as a DNS server:
$ 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 3 (wlp0s20f3)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 2 (eno1)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 192.168.1.254
DNS Domain: telus
Local names are not resolved:
$ nslookup zf1
Server: 127.0.0.53
Address: 127.0.0.53#53
** server can't find zf1: SERVFAIL
$ dig zf1
; <<>> DiG 9.11.3-1ubuntu1.5-Ubuntu <<>> zf1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 39908
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;zf1. IN A
;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sat Feb 23 09:46:12 PST 2019
;; MSG SIZE rcvd: 32
Restarting netplan and network-manager services make no difference.
Restarting the systemd-resolved (or clearing systemd-resolved caches)
solve the problem:
$ sudo systemd-resolve --flush-caches
OR
$ sudo service systemd-resolved restart
$ nslookup zf1
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
Name: zf1.telus
Address: 192.168.1.71
** server can't find zf1.telus: NXDOMAIN
Dig still can't find server though:
$ dig zf1
; <<>> DiG 9.11.3-1ubuntu1.5-Ubuntu <<>> zf1
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 20375
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;zf1. IN A
;; Query time: 0 msec
;; SERVER: 127.0.0.53#53(127.0.0.53)
;; WHEN: Sat Feb 23 09:47:38 PST 2019
;; MSG SIZE rcvd: 32
Unless I specify the server manually:
$ dig @192.168.1.254 zf1
;; Warning: Message parser reports malformed message packet.
; <<>> DiG 9.11.3-1ubuntu1.5-Ubuntu <<>> @192.168.1.254 zf1
; (1 server found)
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 50811
;; flags: qr; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 4096
; COOKIE: 94b92f65104856d4 (echoed)
;; QUESTION SECTION:
;zf1. IN A
;; ADDITIONAL SECTION:
zf1. 10000 IN A 192.168.1.71
;; Query time: 6 msec
;; SERVER: 192.168.1.254#53(192.168.1.254)
;; WHEN: Sat Feb 23 09:59:05 PST 2019
;; MSG SIZE rcvd: 60
Once I get local names resolved, the systemd-resolve status remains the
same:
$ 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 3 (wlp0s20f3)
Current Scopes: none
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
Link 2 (eno1)
Current Scopes: DNS
LLMNR setting: yes
MulticastDNS setting: no
DNSSEC setting: no
DNSSEC supported: no
DNS Servers: 192.168.1.254
DNS Domain: telus
What is going wrong here?
This problem effects both my bonic machines, but does not happen on the
machines still on xenial; I can thus assume the router is properly
providing DNS and this indeed is a bionic bug.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: systemd 237-3ubuntu10.13
ProcVersionSignature: Ubuntu 4.15.0-45.48-generic 4.15.18
Uname: Linux 4.15.0-45-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Feb 23 09:49:29 2019
InstallationDate: Installed on 2019-02-09 (14 days ago)
InstallationMedia: Xubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
MachineType: Intel(R) Client Systems NUC8i3BEH
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-45-generic
root=UUID=9c982b36-8142-4719-810a-e06f81cab223 ro quiet splash vt.handoff=1
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: 10/15/2018
dmi.bios.vendor: Intel Corp.
dmi.bios.version: BECFL357.86A.0051.2018.1015.1513
dmi.board.name: NUC8BEB
dmi.board.vendor: Intel Corporation
dmi.board.version: J72693-304
dmi.chassis.type: 3
dmi.chassis.vendor: Intel Corporation
dmi.chassis.version: 2.0
dmi.modalias:
dmi:bvnIntelCorp.:bvrBECFL357.86A.0051.2018.1015.1513:bd10/15/2018:svnIntel(R)ClientSystems:pnNUC8i3BEH:pvrJ72753-303:rvnIntelCorporation:rnNUC8BEB:rvrJ72693-304:cvnIntelCorporation:ct3:cvr2.0:
dmi.product.family: Intel NUC
dmi.product.name: NUC8i3BEH
dmi.product.version: J72753-303
dmi.sys.vendor: Intel(R) Client Systems
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
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https://bugs.launchpad.net/bugs/1817424
Title:
Unable to resolve local DNS names provided by router on bootup.
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