lookup registry-1.docker.io: no such host

Question

I have docker daemon running on my Ubuntu 16.4 server

my server details:

No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 17.04 Release: 17.04 Codename: zesty

I'm receiving the following error:

aa@aaa-VirtualBox:/etc/default$ docker run hello-world
Unable to find image 'hello-world:latest' locally
docker: Error response from daemon: Get https://registry-1.docker.io/v2/: dial tcp: lookup registry-1.docker.io: no such host.
See 'docker run --help'.

I have set the http_proxy and the https_proxy beacuse i'm behind a corp proxy/firewall

Any clues how I can fix this issue?

Have you set the proxy for docker daemon config also? or just using export variables? — Tarun Lalwani, Sep 04 '17 at 12:50
I've posted an identical answer here https://stackoverflow.com/a/67856225/2067697 — ZenithS, Jun 09 '21 at 14:47

score 46 · Accepted Answer · answered Sep 04 '17 at 12:59

46

You need to set the proxy for Docker daemon also using environment variable. Docker run is also doing docker pull since the image doesn't exists. In your case the proxy is only applied to the docker run command, which delegates to the docker daemon which is running without proxy.

Create a file named /etc/systemd/system/docker.service.d/10_docker_proxy.conf with below content

[Service]
Environment=HTTP_PROXY=http://1.1.1.1:111
Environment=HTTPS_PROXY=http://1.1.1.1:111

Make sure to update the proxy as per the ones you have 1.1.1.1:111 is just an example

Then execute below commands to restart docker

sudo systemctl daemon-reload
sudo systemctl restart docker

Now use your docker run command and it should work

answered Sep 04 '17 at 12:59

Tarun Lalwani

142,312
9
204
265

finally this works, but not sure why this solution (https://docs.docker.com/network/proxy/) doesn't work. – BMW Apr 30 '19 at 03:55
@Tarun Lalwani, could you have a look at my question here: https://stackoverflow.com/questions/57792954/cannot-download-docker-images-no-such-host. I don't know the full path of docker.service.d on my windows PC. Thanks. – w0051977 Sep 04 '19 at 17:11
1

In my case, docker was working fine and this error popped up all of a sudden. A simple restart with `sudo systemctl restart docker` fixed it. – belvederef Nov 07 '20 at 10:16
After doing this i'm getting Get https://k8s-master:5000/v1/_ping: proxyconnect tcp: dial tcp 1.1.1.1:111: i/o timeout – Yogesh Bombe Jun 07 '22 at 19:36
In my case, based on this solution i added HTTP_PROXY and HTTPS_PROXY as an environment variable in my windows 10 PC. The values in it were configured to localhost:3129 where px proxy was running on port number 3129 . I was able to later pull images. – Ravikiran R Feb 18 '23 at 15:09

score 19 · Answer 2 · answered Apr 03 '19 at 20:53

Things you can try:

a) Add nameserver 8.8.8.8

Method #1

docker-machine ssh default
sudo vi /etc/resolv.conf
//change nameserver to 8.8.8.8

Then restart the server using

service docker restart

Note: If you don't have docker-machine installed, you can follow instructions here to install it. It comes with Windows and Mac but is available for install on Linux manually.

Method #2

Edit /etc/docker/daemon.json Or "provide a JSON configuration in the preference panel" with the following information:

{ "dns" : [ "8.8.8.8", "8.8.4.4" ]}

Then restart the server using

service docker restart

b) Setup Proxy

Method #1

Edit your proxy configuration as Tarun Lalwani suggested.

Edit /etc/default/docker and add:

export http_proxy='http://username:password@proxy-host:proxy-port'
export https_proxy='https://username:password@proxy-host:proxy-port'

Then restart the server using

service docker restart

Method #2

Source: https://github.com/moby/moby/issues/32270#issuecomment-340709035

Create a systemd drop-in directory for the docker service:

mkdir -p /etc/systemd/system/docker.service.d
# For HTTP Proxy:
vim /etc/systemd/system/docker.service.d/http-proxy.conf
# For HTTPS Proxy:
vim /etc/systemd/system/docker.service.d/https-proxy.conf

Then add below content with proxy settings with it (Change to "HTTPS" for https)

[Service]
Environment="HTTP_PROXY=http://<allowed_proxy_ipv4_address>:<proxy_port_num>/"
[Service]

sudo systemctl daemon-reload
sudo systemctl restart docker
Verify that the configuration has been loaded: systemctl show --property=Environment docker

c) Reinstall Docker

Unfortunately the last resort, could work. Check out these github pages for more suggestions:

For me, setting up the proxy using the systemctl method was the only thing that worked.

I have Windows 7 and two physical interfaces (one of them w/o internet access) and method 1a works in that case. — Winand, May 14 '19 at 06:19
/etc/resolv.conf with nameserver 8.8.8.8 and then dockerd restart — ATorras, May 25 '20 at 17:36

score 12 · Answer 3 · answered Nov 03 '20 at 13:21

12

I bumped into this error and was able to resolve by a simple restart:

sudo service docker restart

answered Nov 03 '20 at 13:21

DS Steven Matison

401
3
9

3

Solved to me. Using Ubuntu 20.04 on wsl2 – girorme Aug 23 '21 at 20:49

score 5 · Answer 4 · answered Sep 23 '19 at 00:03

I solve the error changing DNS server by 8.8.8.8 - Ubuntu 18.04.3 LTS

1- Open the Ubuntu System Settings and Navigate to Network

2- Click the on the setting button next to the Network name in the list to which you are connected.

3- New Window will open with a lot number of tabs, with one of them with the label of “IPv4”.

4- Upon opening the “IPv4” Tab you will find a Field of “DNS”. Here you can write the DNS server

If you want to use more than one DNS, then you can enter and separate them with a comma.

score 4 · Answer 5 · answered Jul 18 '21 at 08:41

4

I tried many of the above answers, but to no avail.

Finally, this approach worked for me:

docker logout
docker login

I have no idea why though.

answered Jul 18 '21 at 08:41

not2savvy

2,902
3
22
37

Happened to me after resetting Docker settings, I was still connected but logout / login worked liked a charm, thanks – Vincent Decaux Jun 20 '23 at 20:57

score 2 · Answer 6 · answered Oct 16 '19 at 07:48

2

Go to Docker Settings -> Proxies -> Manual proxy configuration.

Set the proxy details in the input and apply.

Restart the docker. This will fix the issue.

answered Oct 16 '19 at 07:48

Jeberdson Abraham

541
7
11

score 1 · Answer 7 · answered Nov 22 '20 at 23:08

Simplified detailed solution in case you are having this problem in windows is as below: right click on network open network and internet setting In advanced network setting, click on change adapter options right click on your network or wifi connection click on properties in Networking tab click on Internet protocal version 4 (TCP/IPv4) or ipv6 In general, click on use the following DNS server address and add 8.8.8.8 on preferred DNS server

score 1 · Answer 8 · answered Oct 04 '21 at 16:07

1

FOr windows going to resoureces -Network and changing DNS to 8.8.8.8 did the trick. ALso make sure to restart after chaning.

answered Oct 04 '21 at 16:07

10raw

506
12
26

4

there are no DNS server settings in the latest version – Conor Aug 25 '22 at 14:19

score 0 · Answer 9 · answered Nov 28 '19 at 06:29

0

Configure Docker to start on boot

sudo systemctl enable docker

answered Nov 28 '19 at 06:29

Annika

1
1

lookup registry-1.docker.io: no such host

9 Answers9

a) Add nameserver 8.8.8.8

Method #1

Method #2

b) Setup Proxy

Method #1

Method #2

c) Reinstall Docker

Linked