Sorry, comment 60 and comment 61 were intended for bug 1864256.
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Title:
systemd-resolved appends 127.0.0.53 to resolv.conf alongside existing
Note: The file /run/NetworkManager/no-stub-resolv.conf does contain the
nameservers that are automatically provided by the VPN connection.
This solved the issue for me:
sudo rm /etc/resolv.d
sudo ln -s /run/NetworkManager/no-stub-resolv.conf /etc/resolv.conf
I am running Ubuntu Desktop, not
I have this issue as well. However, the instructions given in
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1624320/comments/57
do not solve the issue for me.
When connecting the strongswan VPN, I see that the
/run/systemd/resolve/resolv.conf file is touched (the timestamp of the
file
This bug, as described, is about 127.0.0.53 being configured in
/etc/resolv.conf /alongside/ other entries. In recent releases this is
no longer the behavior; instead, /etc/resolv.conf is entirely managed by
systemd and points exclusively to the 127.0.0.53 local resolver, which
in turn will use
** Tags added: resolved-resolvconf
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Title:
systemd-resolved appends 127.0.0.53 to resolv.conf alongside existing
entries
To manage
Thank you so much, this workaround has helped me fix the problem I
described in another bug: https://bugs.launchpad.net/ubuntu/+source
/network-manager-strongswan/+bug/1864256
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I just installed the 19.10 server iso and the machine doesn't use the
DNS server provided through DHCP.
As a workaround I had to:
$ sudo rm /etc/resolv.conf
$ sudo ln -s /run/systemd/resolve/resolv.conf /etc/resolv.conf
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: systemd (Ubuntu)
Status: New => Confirmed
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Title:
** Changed in: systemd (Ubuntu)
Status: Confirmed => New
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Title:
systemd-resolved appends 127.0.0.53 to resolv.conf alongside existing
** Changed in: systemd (Ubuntu)
Assignee: (unassigned) => jamesrandal (jamesrandal)
** Also affects: ubuntu-rtm
Importance: Undecided
Status: New
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Problem exist with Ubuntu 19.10
The netplan configuration below just works
then after some time (I can't say when) it just stops resolving.
executing netplan apply make the DNS resolution work again.
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root@nas:/home/ff# nslookup www.cisco.com
Server:
Hi everybody,
upgrading to 19.10 the fix from #8 (thanks for helping with previous
setups) does not seem to work anymore, as there's only a
/run/resolvconf/resolv.conf (no stub-resolve anymore), which now keeps
everything broken.
This leaves me with switching to another distro for the moment, as
This affects me since version 18.04 LTS and the workaround by Vincent Fortier
(th0ma7) on #8 solves it. But I'll be much thankful if this bug is fixed on the
next LTS release (20.04). It impacts me on every production instance.
I also vote to change to "Insanely broken and wrong".
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Is absolutely no one looking into this issue?
This issue has been with Ubuntu since 17.04 and we are in 19.04 at the
moment. I have multiple Ubuntu server clusters and this issue is
breaking every dns name resolution in all of them. I am unable to
reliably collect logs and manage systems over the
Another vote to bump up the priority on this.
Just lost 2 days to this bug, mostly because the behavior is so stupidly
borked that I never suspected that Ubuntu would be the cause. Can you
imagine how stupid it is that the only machines on the network affected
are the Ubuntu Desktops and Ubuntu
I have a local DNS server resolved local IP address and it doesn't work
since I migrate. My DHCP server is properly configured and my
configuration worked out-of-the-box for years.
Jeff Carr in comment #32 said everything that needs to be said.
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A problem on 18.04 even with all updates installed
Comment #38 worked for me (well so far anyway)
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Title:
systemd-resolved appends 127.0.0.53
Still a problem for Ubuntu 19.04 too
https://askubuntu.com/questions/1139536/ubuntu-19-04-bind-not-resolving-locally/1140151
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Title:
Also affects me.
I cannot believe that this is still set to low. This is yet another
case of the systemd circus-tools causing unexpected behavior for long-
time linux users.
This breaks local DNS resolution in my homelab. I should NOT have to do
a Google search to fix this, it should just work
My problem with systemd-resolved :
* My router hands out a nameserver (itself) via DNS
* When I'm inside my network, I want my router to resolve IP addresses for my
domain
* When I'm outside my network, I want the public DNS to resolve them
First lookup works fine! Then systemd-resolved (I
February 4th, 2019: Lost a day to this bug
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Title:
systemd-resolved appends 127.0.0.53 to resolv.conf alongside existing
entries
To manage
openssh relies on RRSIG records to verify the remote key using DNSSEC
and SSHFP resource records. See VerifyHostKeyDNS under ssh_config.
systemd-resolve breaks this.
Here is a detailed blog article that covers the issue in depth:
https://moss.sh/name-resolution-issue-systemd-resolved/
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See https://askubuntu.com/questions/1098414/18-04-unable-to-connect-to-
server-due-to-temporary-failure-in-name-resolution/1099311 for
workaround.
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Broke my Xfinity login in Thunderbird and Evolution. Needs some
attention. Running Ubuntu 18.10.
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Title:
systemd-resolved appends 127.0.0.53 to
Another vote here to increase the importance from low to "Insanely
broken and wrong". Let's get this fixed.
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Title:
systemd-resolved appends
Same issue here with 18.10
The bug is here and ignoring it for 2 years is just ridiculous
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Title:
systemd-resolved appends 127.0.0.53 to
Now, I wirted a job to listen the servername, if it shows 127.0.0.53,
the job will change it to I want...
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Title:
systemd-resolved appends
I'll chime in as well. This bug is absolutely ridiculous. I lost half a
day to this.
I completely agree with Marten in 35:
> This is a blocking issue for non-technical users
I thought I had some nasty bug with my alexa to ngrok to django set up.
Turns out, name lookups were just slow, causing
I also think it is a blocker. I am a non technical user, I have lost one
working day for this bug. Dns resolution should work out of the box! I
solved following the instruction in this post - not even sure it is the
best fix, for now it seems to work.
I'll add my name to the list of people saying this is a blocker. I am
currently working on a massive upgrade of 1000+ systems to Ubuntu 18.04
planned for early next year. Local dns resolution is an absolute must,
and it must work out of the box. I can't update /etc/resolv.conf
symlinks on
This is a blocking issue for non-technical users (even for technical
users, it is a massive PITA). It must be addressed as a matter of
priority.
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The first 18.04 computer added and it can not communicate with any of
the other servers on the local network because it does not honor the dns
entry from dhcp. How this bug is not already set to "Insanely broken
and wrong" escapes me.
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I could not agree more with Jeff Carr.
This is a really important function.
>From my pov this is not a low priority bug.
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Title:
I vote for changing it from "Low" to "Insanely broken and wrong".
Even the workaround to set DNS in resolved.conf is still wrong. There is
a reason that every dhcp server on earth is configured to provide a DNS
server for a reason.
Jeff Carr
CEO WIT.COM Inc.
Formerly co-founder Digital Ocean
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Given the number of bug reports, and that this causes delayed breakage
in server environments, perhaps this bug priority should be raised from
"Low" to "Medium"?
I encountered this delayed failure in an LXC container, following
upgrading the server and LXC container from Ubuntu 17.10 to Ubuntu
Is this behavior related to the bug?
I have running router on 192.168.31.1
Then, I run a test setup of bionic on virtual box as a squid proxy.
Everything fine, almost.
I found every local network names are failed to be resolved by the new bionic
installation, but outside local network names
On my bionic system, I had to manually remove resolvconf on account of
bug 1713457. I think it was not being autoremoved because other
packages like isc-dhcp-client, pppconfig, vpnc-scripts have Suggests:
resolvconf.
So I don’t think I’m seeing this particular issue. However, the lack of
Anders, are you still seeing this issue with currently-supported
versions of Ubuntu? I have argued elsewhere that the correct thing to
do for 18.04 is to forcibly remove resolvconf on upgrades, switching
/etc/resolv.conf to exclusively point to /run/systemd/resolve/stub-
resolv.conf. In the
FWIW, you can also disable systemd-resolve altogether since it's working
so poorly. The workaround for #8 works, but ping and ssh are still
broken with it which is far from ideal.
I found this: https://askubuntu.com/a/907249 which seems to break vpn
dns resolution so beware.
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I set up an Ubuntu 18.04 test server today as an LXD host machine and
ran into this issue.
network:
version: 2
renderer: networkd
ethernets:
ens33:
dhcp4: no
dhcp6: no
bridges:
br0:
interfaces: [ens33]
dhcp4: no
dhcp6: no
addresses:
I had a dns server configured in my thinkpad and 127.0.0.1 set in
resolv.conf. After upgrading from 16.04 to 17.04 resolv.conf gets reset
to 127.0.0.53 which in my humble opinion and extensive experience makes
absolutely no sense whatsoever. At the very least this file should be
left alone.
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This bug just compromised every ubuntu machine on my network. It falsely
says that DNSSEC is not supported by the nameserver and resorts to non-
DNSSEC resolution. So every machine on my network just accepted bogus
DNS replies from a MITM. Thanks.
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Today I discovered some additional information in regard to this issue.
I am using Virt-Manager and KVM, I have a Br0 bridge configured to start
onboot. When this is the case name resolution as above fails.
If I delete the bridge using VMM name resolution starts working ( after
a reboot ). Put
Here is my use case experience, after running a clean install of Kubuntu
17.10.
Initially everything was perfect, and for at least 10 days my machine
booted perfectly fine and DNS working without issue.
However, after installing virt manage Virtual Machine Manager, like so
sudo apt-get install
Hi,
I just upgraded from Ubuntu 16.10 to 17.04 and observed the following
systemd-resolve behaviour that might be related to this bug:
--> Any domain listed after the "search" keyword in /etc/resolv.conf
stops being resolved by systemd-resolve.
respectively
--> Any domain listed as "DNS
Hello everyone! I had the same issue. Google Chrome and Firefox just loaded
Google's websites.
I went to resolv.conf to see what was happening and I saw a new configuration.
So I decided to add Google's DNS and it worked again but just till I restarted
my laptop.
I don't know much of
I've been struggling with this issue... It seems I have to append the
localdomain to my local names for the resolution to work :
nslookup somename : SERVFAIL, 127.0.0.53 didn't proxy to my router
nslookup somename.localdomain : OK, answer from my router
Why somename request isn't forwarded to my
Update to post #17...
The fix unfortunately did not fix all DNS problems. nslookup and dig can
resolve local hosts, BUT ping and ssh both report 'Name or Service not known'.
Looks like the HOSTS is still required.
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In my case after a 17.04 installation I needed a HOSTS file in order to
resolve local hosts. After applying the fix in post #8 both local and
remote hosts were resolved by the router DNS server (as was the case in
the past).
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@alexlist
At least for me, I do get
nameserver 127.0.0.53
search local.example.com example.local
In my resolv.conf by default. As in the exppected domains are listed in
the search search stanza in the ../run/resolvconf/resolv.conf for my
company network. As well as
If search stanzas are not generated for the 127.0.0.53 in resolv.conf,
we need to open a new bug report I believe.
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Title:
systemd-resolved
Using a clean 17.04 install, I could observe the same problem.
Against convention, our company is using .local as the internal DNS TLD.
As mentioned in #8 and #13 above, /etc/resolv.conf was symlinked to
root@dell-e5470:~# ls -l /etc/resolv.conf
lrwxrwxrwx 1 root root 29 Apr 5 09:19
Same problem here. Editing resolv.conf or #8 post solves it.
I almost lost a RAID today because postfix was not able to send mdadm
notifications -
delivery temporarily suspended: Host or domain name not found. Name service
error for name=smtp.gmail.com type=MX: Host not found
I use
Other *nix machines and Macs their resolve.conf on my LAN just append
the dns server address that is configured om their network manager or
network preferences. Why Ubuntu does not follow this I do not
understand.
It stops my Ubuntu devices resolving FQDN's on the the LAN. I have to
manually edit
I had this problem too. I've upgraded 2 machines from kubuntu 16.10 to
17.04 and afterwards both were unable to resolve DNS. The only line in
/etc/resolv.conf was 'nameserver 127.0.0.53'. As Mike wrote, following
Vincent's fix above fixed the issue for me. Thanks Vincent :)
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I appreciate Vincent's post. I upgraded to 17.04 and DNS resolution has
been absolutely terrible; slow, failed lookups, etc. Finally realized
it was using 127.0.0.53 as the resolver. I did the method 2 above and
DNS back to normal.
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Hello everyone. Sorry for my english.
I have trouble with this f.. DNS, because 127.et around.
I change this for 8.8.8.8 - then FF working properly. I shut down my Ubuntu and
DNS znowu 127.etc when I running Ubuntu. This sick.
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>From the man page systemd-resolve can run in 3 mode of operations.
1) Ubuntu 17.10 default - The default is to list the 127.0.0.53 DNS stub
(see above) as only DNS server. This file may be symlinked from
/etc/resolv.conf in order to connect all local clients that bypass local
DNS APIs to
So this issue bit me in a weird way. I had my bridge called "xenbr0" and
the result of these two interacting gives me absolutely no DNS
resolution since the /etc/resolv.conf just pointed to 127.0.0.53 and
didn't include the DNS server from my "xenbr0". Renaming the bridge to
"renbr0" caused it to
Martin: I still wonder what the point of having resolvconf is, if it’s
only ever supposed to be used to manage 127.0.0.53, and every other use
of resolvconf will lead to this bug resurfacing. I still propose that
systemd-resolved should read from /run/resolvconf/resolv.conf without
adding
Au contraire,
I argue to not fix this issue and keep the other upstream resolvers
alongside 127.0.0.53 in /etc/resolv.conf, because 127.0.0.53 will break
applications that need to do DNSSEC validation themselves (for example
for DANE).
Once systemd-resolved has been fixed to provide the DNSSEC
As explained, 127.0.0.53 must be in /etc/resolv.conf in order to support
Chromium and other software which does not NSS -- that is the whole
raison d'être for providing a local stub server.
In Yakkety with NetworkManager only the 127.0.1.1 dnsmasq server is in
/etc/resolv.conf, so that isn't
Unfortunately the DNS interface of current systemd-resolved strips DNSSEC, so
applications that do DANE validation still have to target the upstreams
directly.
I have filed a bug about this: https://github.com/systemd/systemd/issues/4621
** Bug watch added: github.com/systemd/systemd/issues
DNS resolution outside NSS shouldn’t be dismissed as an edge case for
software that’s too conceited to use NSS. NSS only exposes A, , and
PTR records. There’s plenty of software in the official archive that
needs other records from DNS (off the top of my head: SRV, TXT, MX,
SSHFP, AFSDB) and
The primary purpose of adding 127.0.0.53 to resolv.conf is for client
software that wants to do DNS resolution by itself instead of using NSS
-- most notable example is Google Chrome, and third-party software which
is statically linked (e. g. Go).
However, other software like NetworkManager or
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