I'm seeing a similar issue on current Ubuntu Yakkety with Android phone
AP via WPA2-personal:
$ systemd-resolve www.guugle.com
www.guugle.com: 208.73.210.200
208.73.210.214
208.73.211.178
208.73.210.217
-- Information acquired via protocol DNS in 13.6889s.
-- Data is authenticated: no
`host www.guugle.com` and nslookup on the other hand return immediately
during this time. Disabling DNSSEC and restarting systemd-resolved using
the instructions above has no effect (the above trace is after
disabling).
syslog contains the lines:
Oct 31 20:25:41 xxxxx systemd-resolved[5309]: Using degraded feature set
(UDP+EDNS0+DO) for DNS server 127.0.0.1.
resolv.conf contains only `nameserver 127.0.0.1`. The problem disappears
if I add also the line `nameserver 192.168.43.1` (that's the upstream
DNS) --- however, the following line appears in the logs:
Oct 31 20:34:05 xxxxx systemd-resolved[5309]: Using degraded feature set
(UDP) for DNS server 192.168.43.1.
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https://bugs.launchpad.net/bugs/1609546
Title:
Slow DNS lookup through Netgear DG834G V4 router
Status in systemd package in Ubuntu:
Triaged
Bug description:
On up to date Yakkety if I specify my Netgear router as the DNS server (via
Network Manager) then DNS lookup takes about 30 seconds. I see the delay when I
run, for example,
systemd-resolve www.google.com
or
wget www.google.com
I do not see the same delay if I run
nslookup www.google.com
A clue may be that in syslog I see
Aug 3 21:20:56 dibbler systemd-resolved[2362]: Using degraded feature set
(UDP+EDNS0+DO) for DNS server 127.0.1.1.
Aug 3 21:21:16 dibbler systemd-resolved[2362]: Using degraded feature set
(UDP+EDNS0) for DNS server 127.0.1.1.
Aug 3 21:21:32 dibbler systemd-resolved[2362]: Using degraded feature set
(UDP) for DNS server 127.0.1.1.
I do not see the issue if I specify an external DNS server.
I do not see the issue on 16.04, nor previous versions, or on other devices
connected to the network. I have been using this router for years.
ProblemType: Bug
DistroRelease: Ubuntu 16.10
Package: systemd 231-1
ProcVersionSignature: Ubuntu 4.4.0-33.52-generic 4.4.15
Uname: Linux 4.4.0-33-generic x86_64
ApportVersion: 2.20.3-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Aug 3 21:24:07 2016
InstallationDate: Installed on 2016-08-02 (1 days ago)
InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Alpha amd64 (20160802)
MachineType: Hewlett-Packard Presario CQ57 Notebook PC
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-33-generic
root=UUID=aaca48e9-0f14-4b6b-ad60-fe93989c14b8 ro quiet splash vt.handoff=7
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 12/17/2011
dmi.bios.vendor: Hewlett-Packard
dmi.bios.version: F.47
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 3577
dmi.board.vendor: Hewlett-Packard
dmi.board.version: 24.49
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Hewlett-Packard
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnHewlett-Packard:bvrF.47:bd12/17/2011:svnHewlett-Packard:pnPresarioCQ57NotebookPC:pvr068E120000204910000620100:rvnHewlett-Packard:rn3577:rvr24.49:cvnHewlett-Packard:ct10:cvrChassisVersion:
dmi.product.name: Presario CQ57 Notebook PC
dmi.product.version: 068E120000204910000620100
dmi.sys.vendor: Hewlett-Packard
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