Ubuntu DNS Error Chrome: DNS_PROBE_FINISHED_NXDOMAIN, Firefox similar

Question

I am unable to visit most sites online in either firefox or chrome. I can access google docs so I am researching on windows 7 (dualboot) and rebooting into Ubuntu (recently upgraded to 16.04).

Test 0:

$ sudo /etc/init.d/dns-clean
$

(nothing happened)

Test 1:

$ dig microsoft.com
; <<>> DiG 9.10.3-P4-Ubuntu <<>> microsoft.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2944
;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 512
;; QUESTION SECTION:
;microsoft.com.         IN  A

;; ANSWER SECTION:
microsoft.com.      896 IN  A   104.43.195.251
microsoft.com.      896 IN  A   23.100.122.175
microsoft.com.      896 IN  A   23.96.52.53
microsoft.com.      896 IN  A   191.239.213.197
microsoft.com.      896 IN  A   104.40.211.35

;; Query time: 102 msec
;; SERVER: 2001:558:feed::1#53(2001:558:feed::1)
;; WHEN: Tue Aug 29 14:54:43 EDT 2017
;; MSG SIZE  rcvd: 122

Test 2:

$ ping reddit.com
connect: Network is unreachable

Test 3:

$ less /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback

Test 4:

$ less /etc/NetworkManager/NetworkManager.conf 
[main]
plugins=ifupdown,keyfile,ofono
/#dns=dnsmasq

no-auto-default=D4:BE:D9:A6:2E:C1,

[ifupdown]
managed=false

Test 5: Chrome

This site can’t be reached
www.reddit.com’s server DNS address could not be found.
DNS_PROBE_FINISHED_NXDOMAIN

Test 6: Firefox

Server not found
Firefox can’t find the server at www.reddit.com.
Check the address for typing errors such as ww.example.com instead of www.example.com
If you are unable to load any pages, check your computer’s network connection.
If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.

Edit: Almost forgot, this seems to have started after I tried installing PlayOnLinux the other day. I uninstalled it but the problems persist.

Any thoughts?

Re: possible duplicate question : dns_probe_finished_nxdomain error caused by Ubuntu dns_probe_finished_nxdomain error caused by Ubuntu I clearly state in my question that the solution posed in the other thread of clearing the dns cache does not resolve my issue.

https://askubuntu.com/questions/844785/dns-probe-finished-nxdomain-error-caused-by-ubuntu poses a similar issue, but the resolution proposed there does not fix the issue. My attempt to use the solution from that thread is listed as test 0 in my question, and it did not resolve my issue. — Nick S, Aug 29 '17 at 21:49
Related?: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1647031 — nekketsuuu, Sep 02 '17 at 15:43
nekketsuuu I think the bug you linked is related, but it did not provide a solution for me. I actually moved over the weekend and now am able to use a wired connection and that is working fine, so the problem is with wireless only and I'm not going to spend any more time on it for now. If anyone else knows exactly what's going on and wants me to test a fix I'd be happy to though. — Nick S, Sep 05 '17 at 15:56

Raja Parivesh · Accepted Answer · 2021-08-03T11:53:44.843

79

Resolved: DNS_PROBE_FINISHED_NXDOMAIN in Linux

Step 1. Open terminal and add below command

sudo nano /etc/dhcp/dhclient.conf

Step 2. Now add below line in file

supersede domain-name-servers 8.8.8.8;

Now, save file

Step 3. Restart the network

sudo service network-manager restart

or

sudo systemctl restart NetworkManager.service

Refresh your page and done.

edited Aug 03 '21 at 11:53

answered Nov 06 '17 at 22:56

Raja Parivesh

903
8
8

6

Really solved (!)... What the possible cause? A trojan? An UBUNTU upgrade? – Peter Krauss Jan 24 '18 at 15:42
1

Nope, I'm unlucky one – vladkras Sep 20 '18 at 11:08
4

This solved the issue for me but it would be nice to have this solution explained... what supersede domain-name-servers 8.8.8.8; does? – Andrea Vacondio May 23 '19 at 08:38
solved here too :) @AndreaVacondio it sets your DNS to Google's public DNS – Mr.P Dec 21 '19 at 17:24
2

Does not work for me. Kubuntu 20.04 going over a Netgear range extender. Normal Router has no problems to begin with. – lo tolmencre May 28 '20 at 00:39
Accepted this answer as it looks like others were helped by it. – Nick S May 31 '20 at 07:16
2

not working for ubuntu 20.04 – Mostafa90 Jul 08 '20 at 13:35
Works like a charm !! anyone please explain... – Rahul Jan 04 '21 at 09:15
1

for ubuntu 20.04 run below command sudo vim /etc/resolv.conf If above does not work run sudo nano /etc/resolv.conf
Add below name servers to file and refresh the page will work fine. nameserver 8.8.8.8 nameserver 208.67.222.222 nameserver 4.2.2.2
– Yellow Digital Labs Oct 01 '21 at 05:40

Filip Kubicz · Answer 2 · 2023-12-04T08:30:50.493

6

For me (Ubuntu 20.04), the only working solution was to add DNS servers of Google and OpenDNS.

I did it at computer level:

sudo vim /etc/resolv.conf

And added these lines (before other nameservers):

nameserver 8.8.8.8
nameserver 208.67.222.222
nameserver 4.2.2.2

To make these changes permanent, follow this: how to change DNS server permanently on Ubuntu 20.04?

This can be also done at router level (for all devices):

Go to router management -> DNS -> Set primary DNS to 8.8.8.8 and secondary DNS to 208.67.222.222.

See https://linuxhint.com/opendns-vs-googledns/ for more info about choosing the DNS nameservers (and checking which server is faster in your location).

edited Dec 04 '23 at 08:30

answered Jan 11 '21 at 17:54

Filip Kubicz

161

It works! For some reason I had only: nameserver 127.0.0.53 – jobima Jun 16 '21 at 09:40
2

Well: The file is dynamic (generated by systemd-resolved) so you loose your change! For some reason I only have: nameserver 127.0.0.53 – jobima Jun 16 '21 at 09:48
1

for ubuntu 20.04 it's working fine. Thanks @Filip Kunbicz – Yellow Digital Labs Oct 01 '21 at 05:39
1

Working for ubuntu 22.04. – southpaw93 May 16 '23 at 06:49
To make this change permanent, you can install resolvconf as described here: https://askubuntu.com/questions/1280277/how-to-change-dns-server-permanently-on-ubuntu-20-04 – Filip Kubicz Dec 04 '23 at 08:30

score 4 · Answer 3 · answered Jul 14 '20 at 15:32

4

For me it was flushing the dns cache that way:

sudo systemd-resolve --flush-caches

You can then check the statistics in order to make sure that your cache size is now zero.

sudo systemd-resolve --statistics

answered Jul 14 '20 at 15:32

Aziz.G

161
6

score 1 · Answer 4 · answered Jul 09 '21 at 12:44

1

Restarting the router solved this problem for me.

answered Jul 09 '21 at 12:44

talz

195

1

I know the asker said they did not experience that problem on windows so you might assume the problem can only be solved on the ubuntu system, but I only experienced the problem on one browser and not on another, and still restarting the router solved it. – talz Jul 09 '21 at 12:45

score 1 · Answer 5 · answered Jan 09 '22 at 00:22

I am having the same issue. I have tried everything from all answers and none of these work for me. I am working right now on something which requires a lot of DNS updates and this completely blocks my work all the time. I have to go and look at the site on my phone / ipad to see if it is really working.

Is there any other possible solution ?

score 0 · Answer 6 · answered May 04 '22 at 12:01

In my case I solved it from TpLink router -admin panel settings.

Go to Advance > Network > LAN settings, and change:

Primary DNS : 8.8.8.8

Secondary DNS : 8.8.4.4

Hit save then restart your router, wait to see your internet indicator lights up on your router and then reload your pages to check.

Ubuntu DNS Error Chrome: DNS_PROBE_FINISHED_NXDOMAIN, Firefox similar

6 Answers6

Resolved: DNS_PROBE_FINISHED_NXDOMAIN in Linux

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