# \#ubuntu **URL:** https://forums.docker.com/tag/ubuntu/57.md [Latest](https://forums.docker.com/latest.md) · [Categories](https://forums.docker.com/categories.md) · [Tags](https://forums.docker.com/tags.md) --- ## [What's the mechanics behind "transport: Error while dialing: only one connection allowed" error message in docker log?](https://forums.docker.com/t/whats-the-mechanics-behind-transport-error-while-dialing-only-one-connection-allowed-error-message-in-docker-log/152421)
**Author:** [@ksp4](https://forums.docker.com/u/ksp4)\ **Replies:** 1\ **Last updated:** [September 21, 2026, 5:53pm UTC](https://forums.docker.com/t/whats-the-mechanics-behind-transport-error-while-dialing-only-one-connection-allowed-error-message-in-docker-log/152421 "2026-09-21T17:53:58Z")
As I got from the internet, it sporadically appears and disappears, but could not find any explanations as to why and when it happens. Personally, I started paying attention to this message after a disk full event in a … --- ## [Docker Desktop Ubuntu - Service Starts but GUI Will Not Open](https://forums.docker.com/t/docker-desktop-ubuntu-service-starts-but-gui-will-not-open/151952)
**Author:** [@calsonicgtr](https://forums.docker.com/u/calsonicgtr)\ **Replies:** 5\ **Last updated:** [July 24, 2026, 8:18am UTC](https://forums.docker.com/t/docker-desktop-ubuntu-service-starts-but-gui-will-not-open/151952 "2026-07-24T08:18:58Z")
I am running Docker Desktop on an Ubuntu VM (24.04.4 LTS) through Proxmox (9.2.3). I was running v4.53 of Desktop and recently attempted to upgrade to 4.79. When I upgrade and restart, Docker Desktop starts in the backgr… --- ## [Apt Mirror broken again?](https://forums.docker.com/t/apt-mirror-broken-again/152027)
**Author:** [@judfs](https://forums.docker.com/u/judfs)\ **Replies:** 2\ **Last updated:** [July 10, 2026, 4:29pm UTC](https://forums.docker.com/t/apt-mirror-broken-again/152027 "2026-07-10T16:29:54Z")
I’m trying to follow https://docs.docker.com/engine/install/ubuntu/#install-using-the-repository on an Nvidia Orin (arm64 Jetson) running Ubuntu 22.04. Running sudo apt update I get E: Failed to fetch https://download.… --- ## [Converting wordpress/mpm\_prefork/php/apache2 to wordpress/mpm\_event/php-fpm/apache2](https://forums.docker.com/t/converting-wordpress-mpm-prefork-php-apache2-to-wordpress-mpm-event-php-fpm-apache2/151751)
**Author:** [@hollandnumerics](https://forums.docker.com/u/hollandnumerics)\ **Replies:** 15\ **Last updated:** [June 23, 2026, 7:55pm UTC](https://forums.docker.com/t/converting-wordpress-mpm-prefork-php-apache2-to-wordpress-mpm-event-php-fpm-apache2/151751 "2026-06-23T19:55:21Z")
I am trying to convert an Wordpress-PHP-Apache2 (mpm\_prefork) server to Wordpress-PHPFPM-Apache2 (mpm\_event) server. The current docker environment has become much slower with increased concurrent access to Wordpress. C… --- ## [Docker run error: /proc/self/fd/6: permission denied](https://forums.docker.com/t/docker-run-error-proc-self-fd-6-permission-denied/150873)
**Author:** [@astrosias](https://forums.docker.com/u/astrosias)\ **Replies:** 5\ **Last updated:** [January 19, 2026, 6:14pm UTC](https://forums.docker.com/t/docker-run-error-proc-self-fd-6-permission-denied/150873 "2026-01-19T18:14:38Z")
Hi, I’m pretty new to docker and was trying to install it and run the hello-world container on a new Ubuntu 25.10 machine. I followed the steps listed here: Ubuntu | Docker Docs and used the “apt” install method (I am … --- ## [Getting credential helpers to work with "pass"](https://forums.docker.com/t/getting-credential-helpers-to-work-with-pass/150776)
**Author:** [@msteindocker77](https://forums.docker.com/u/msteindocker77)\ **Replies:** 0\ **Last updated:** [January 7, 2026, 12:15pm UTC](https://forums.docker.com/t/getting-credential-helpers-to-work-with-pass/150776 "2026-01-07T12:15:06Z")
Hi all, I am trying to get docker-credential-helpers to work with “pass” on ubuntu but keep getting the following error when pulling an image from my ECR repo $ docker pull XXXXXXXX7971.dkr.ecr.eu-central-1.amazonaws.c… --- ## [Installation issues on ubuntu](https://forums.docker.com/t/installation-issues-on-ubuntu/150736)
**Author:** [@buddyspencer](https://forums.docker.com/u/buddyspencer)\ **Replies:** 7\ **Last updated:** [January 2, 2026, 5:16pm UTC](https://forums.docker.com/t/installation-issues-on-ubuntu/150736 "2026-01-02T17:16:39Z")
I am trying to install docker on ubuntu 25.10 and followed the steps from Ubuntu | Docker Docs and get the following error message: sudo apt install docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-comp… --- ## [Docker builds failing, bad bridge?](https://forums.docker.com/t/docker-builds-failing-bad-bridge/150602)
**Author:** [@mjarhamel](https://forums.docker.com/u/mjarhamel)\ **Replies:** 2\ **Last updated:** [December 8, 2025, 9:00pm UTC](https://forums.docker.com/t/docker-builds-failing-bad-bridge/150602 "2025-12-08T21:00:34Z")
I have just installed a fresh docker (Docker version 29.1.2, build 890dcca ) on an up-to-date build of Ubuntu 24.04.3 LTS, and all my docker builds are failing - first theres a bunch of "Temporary failure resolving ‘’”,… --- ## [Docker Destop GUI won't open on Ubuntu](https://forums.docker.com/t/docker-destop-gui-wont-open-on-ubuntu/150462)
**Author:** [@dsmithar25](https://forums.docker.com/u/dsmithar25)\ **Replies:** 4\ **Last updated:** [November 21, 2025, 7:17am UTC](https://forums.docker.com/t/docker-destop-gui-wont-open-on-ubuntu/150462 "2025-11-21T07:17:32Z")
I’m trying to move a server from window to Ubuntu so so I can learn some linux and start hosting some docker containers. The machine used to be window server, and is not Ubuntu 24.04. I’ve installed docker desktop foll… --- ## [Container seems unable to perform any DNS resolution \[Arch Linux\]](https://forums.docker.com/t/container-seems-unable-to-perform-any-dns-resolution-arch-linux/150179)
**Author:** [@shingyux](https://forums.docker.com/u/shingyux)\ **Replies:** 5\ **Last updated:** [October 19, 2025, 7:22pm UTC](https://forums.docker.com/t/container-seems-unable-to-perform-any-dns-resolution-arch-linux/150179 "2025-10-19T19:22:42Z")
Hello everyone, I am encountering a persistent networking issue with a Docker container running on an Arch Linux host by using docker run. The container appears unable to resolve DNS addresses, despite multiple troubles… --- ## [Can't properly install docker desktop after uninstalling it](https://forums.docker.com/t/cant-properly-install-docker-desktop-after-uninstalling-it/150136)
**Author:** [@tangencialmente](https://forums.docker.com/u/tangencialmente)\ **Replies:** 1\ **Last updated:** [October 15, 2025, 1:03pm UTC](https://forums.docker.com/t/cant-properly-install-docker-desktop-after-uninstalling-it/150136 "2025-10-15T13:03:15Z")
Hello! Issue type: Installation issue OS Version/build: Ubuntu 24.02 App version: Latest I’m trying to re-install docker after having uninstalled it (I messed up the steps). Now I’m trying to follow the step… --- ## [Docker-compose up -d error bufio.Scanner: token too long](https://forums.docker.com/t/docker-compose-up-d-error-bufio-scanner-token-too-long/149945)
**Author:** [@nursedayu](https://forums.docker.com/u/nursedayu)\ **Replies:** 8\ **Last updated:** [October 2, 2025, 6:48am UTC](https://forums.docker.com/t/docker-compose-up-d-error-bufio-scanner-token-too-long/149945 "2025-10-02T06:48:09Z")
“I am so frustrated because my Docker suddenly cannot run docker-compose up -d. i installed in ubuntu server PRETTY\_NAME=“Ubuntu 22.04.5 LTS” please help, because urgent --- ## [Docker Desktop: ERROR: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?](https://forums.docker.com/t/docker-desktop-error-cannot-connect-to-the-docker-daemon-at-unix-var-run-docker-sock-is-the-docker-daemon-running/138438)
**Author:** [@ava09](https://forums.docker.com/u/ava09)\ **Replies:** 13\ **Last updated:** [September 28, 2025, 2:08pm UTC](https://forums.docker.com/t/docker-desktop-error-cannot-connect-to-the-docker-daemon-at-unix-var-run-docker-sock-is-the-docker-daemon-running/138438 "2025-09-28T14:08:57Z")
I followed the instructions Ubuntu | Docker Docs on a new virtual machine. Next in step 3 Part 1: Containerize an application | Docker Docs after running the command docker build -t getting-started . an error is issu… --- ## [Qbittorrent running through Gluetun VPN container makes all torrents get "Errored Status"](https://forums.docker.com/t/qbittorrent-running-through-gluetun-vpn-container-makes-all-torrents-get-errored-status/149615)
**Author:** [@emrite](https://forums.docker.com/u/emrite)\ **Replies:** 4\ **Last updated:** [September 25, 2025, 7:44pm UTC](https://forums.docker.com/t/qbittorrent-running-through-gluetun-vpn-container-makes-all-torrents-get-errored-status/149615 "2025-09-25T19:44:53Z")
I created a docker compose file which had Qbit and GlueTun VPN running with a Private Internet Access VPN. That said, all my torrents get “Errored” status. This is my docker compose file: services: qbittorrent: i… --- ## [Can't run hello-world test](https://forums.docker.com/t/cant-run-hello-world-test/149669)
**Author:** [@jake2105](https://forums.docker.com/u/jake2105)\ **Replies:** 9\ **Last updated:** [September 7, 2025, 12:51pm UTC](https://forums.docker.com/t/cant-run-hello-world-test/149669 "2025-09-07T12:51:53Z")
So I know this is probably an incredibly niche edge case but I was hoping to get some help with getting docker working on my setup. The issue: I’m getting the following error when trying to do the test run of hello-worl… --- ## [Unable to install docker desktop on ubuntu 24.04](https://forums.docker.com/t/unable-to-install-docker-desktop-on-ubuntu-24-04/149637)
**Author:** [@sethgali](https://forums.docker.com/u/sethgali)\ **Replies:** 6\ **Last updated:** [September 3, 2025, 8:45pm UTC](https://forums.docker.com/t/unable-to-install-docker-desktop-on-ubuntu-24-04/149637 "2025-09-03T20:45:48Z")
I’ve been following documentation to install docker desktop \[1\] and am unable to complete the installation process. I downloaded the latest deb package for docker desktop, docker and utilities were installed previously, … --- ## [Error pulling image configuration: tls: failed to verify certificate: x509: certificate signed by unknown authority](https://forums.docker.com/t/error-pulling-image-configuration-tls-failed-to-verify-certificate-x509-certificate-signed-by-unknown-authority/149634)
**Author:** [@jankiex](https://forums.docker.com/u/jankiex)\ **Replies:** 4\ **Last updated:** [September 3, 2025, 6:47am UTC](https://forums.docker.com/t/error-pulling-image-configuration-tls-failed-to-verify-certificate-x509-certificate-signed-by-unknown-authority/149634 "2025-09-03T06:47:31Z")
Hello, I am currently trying to install Vaultwarden on a Debian 12 VM (HyperV). First I got the following error message with curl -fsSL https://get.docker.com -o get-docker.sh && sudo sh ./get-docker.sh curl: (60) SSL… --- ## [What i\`m missing during Docker usage](https://forums.docker.com/t/what-i-m-missing-during-docker-usage/149510)
**Author:** [@chris04022005](https://forums.docker.com/u/chris04022005)\ **Replies:** 2\ **Last updated:** [August 22, 2025, 9:23am UTC](https://forums.docker.com/t/what-i-m-missing-during-docker-usage/149510 "2025-08-22T09:23:02Z")
Hello everyone! I’m new to Docker and need to set up a web server on a machine within my network. I want to access the server using the machine’s IP and the port served by Nginx (8080), followed by /EstagioUm. The appl… --- ## [Can't Find runc but Docker Works Fine](https://forums.docker.com/t/cant-find-runc-but-docker-works-fine/148763)
**Author:** [@dforbesmayhem](https://forums.docker.com/u/dforbesmayhem)\ **Replies:** 3\ **Last updated:** [July 8, 2025, 6:40pm UTC](https://forums.docker.com/t/cant-find-runc-but-docker-works-fine/148763 "2025-07-08T18:40:57Z")
I followed the official instructions to install Docker Desktop on Ubuntu, and everything works great. However, I cannot find runc, despite the fact that docker system info reports it as my default runtime. How do I locat… --- ## [Access Mounted Volumes On Ubuntu](https://forums.docker.com/t/access-mounted-volumes-on-ubuntu/148607)
**Author:** [@abstract3000](https://forums.docker.com/u/abstract3000)\ **Replies:** 3\ **Last updated:** [June 26, 2025, 5:50pm UTC](https://forums.docker.com/t/access-mounted-volumes-on-ubuntu/148607 "2025-06-26T17:50:03Z")
Hello, So deciding after a couple days and soo many searches without little luck to see If someone might be able to help me. I Have a Synology NAS & 3 Folders I enabled NFS on all 3 Directories the Permissions are exp… --- ## [Docker containers on Ubuntu 24.04 cannot reach external network](https://forums.docker.com/t/docker-containers-on-ubuntu-24-04-cannot-reach-external-network/148438)
**Author:** [@dimmegz](https://forums.docker.com/u/dimmegz)\ **Replies:** 6\ **Last updated:** [June 8, 2025, 10:27am UTC](https://forums.docker.com/t/docker-containers-on-ubuntu-24-04-cannot-reach-external-network/148438 "2025-06-08T10:27:28Z")
Hello everyone, I’m experiencing a very persistent and perplexing networking issue with Docker containers on my fresh Ubuntu 24.04 installation. My containers can reach the docker0 bridge, but cannot access the host’s l… --- ## [DNS name resolution is unstable and fails or works within minutes](https://forums.docker.com/t/dns-name-resolution-is-unstable-and-fails-or-works-within-minutes/148063)
**Author:** [@apatrikis](https://forums.docker.com/u/apatrikis)\ **Replies:** 3\ **Last updated:** [May 13, 2025, 8:55pm UTC](https://forums.docker.com/t/dns-name-resolution-is-unstable-and-fails-or-works-within-minutes/148063 "2025-05-13T20:55:40Z")
Hello everyone. I have a “Ubuntu 22.04.5 LTS” machine with Docker version 26.1.3. The simplified container setup is: I have a Ubuntu server, say “lxm1234.my.company” with IP “10.198.140.203” a certificate for this ma… --- ## [Delete Uplink Gateway ID](https://forums.docker.com/t/delete-uplink-gateway-id/148052)
**Author:** [@izon2025](https://forums.docker.com/u/izon2025)\ **Replies:** 4\ **Last updated:** [May 10, 2025, 11:17pm UTC](https://forums.docker.com/t/delete-uplink-gateway-id/148052 "2025-05-10T23:17:15Z")
Hello! I was wondering if anyone knew how to delete/change the ID that is being assigned to my uplink gateway? I tried removing and re-installing docker/compose, but it still gave me the same ID and I need a new one. --- ## [Need to push docker images from one server to another](https://forums.docker.com/t/need-to-push-docker-images-from-one-server-to-another/148051)
**Author:** [@enzis](https://forums.docker.com/u/enzis)\ **Replies:** 1\ **Last updated:** [May 10, 2025, 10:28pm UTC](https://forums.docker.com/t/need-to-push-docker-images-from-one-server-to-another/148051 "2025-05-10T22:28:10Z")
What I’m trying to do shouldn’t be too bad, but I’m having a hell of a time. Spent about 4.5 hours now, and every set of instructions online (docker forums, stackoverflow, stackexchange, you name it) have all led me to s… --- ## [Docker Build Error: Temporary failure resolving 'deb.debian.org' and --with-freetype is not understood](https://forums.docker.com/t/docker-build-error-temporary-failure-resolving-deb-debian-org-and-with-freetype-is-not-understood/147759)
**Author:** [@bfree03nandy](https://forums.docker.com/u/bfree03nandy)\ **Replies:** 1\ **Last updated:** [April 18, 2025, 10:59am UTC](https://forums.docker.com/t/docker-build-error-temporary-failure-resolving-deb-debian-org-and-with-freetype-is-not-understood/147759 "2025-04-18T10:59:07Z")
Hi everyone, I’m trying to build a Docker image for my Laravel application with the following system dependencies: Install system dependencies RUN apt-get update -y && apt-get install -y curl unzip zip git li… --- ## [When will ubuntu 25.04 be supported](https://forums.docker.com/t/when-will-ubuntu-25-04-be-supported/147535)
**Author:** [@bu2yia](https://forums.docker.com/u/bu2yia)\ **Replies:** 1\ **Last updated:** [April 9, 2025, 6:50pm UTC](https://forums.docker.com/t/when-will-ubuntu-25-04-be-supported/147535 "2025-04-09T18:50:40Z")
I observed that https://download.docker.com/linux/ubuntu/dists/ has a plucky folder, but most of the deb package has not been compiled. How soon can docker-ce be installed on ubuntu25.04? --- ## [The designated data directory /var/lib/mysql/ is unusable. You can remove all files that the server added to it](https://forums.docker.com/t/the-designated-data-directory-var-lib-mysql-is-unusable-you-can-remove-all-files-that-the-server-added-to-it/147470)
**Author:** [@roshanikhairnar](https://forums.docker.com/u/roshanikhairnar)\ **Replies:** 7\ **Last updated:** [April 8, 2025, 6:57pm UTC](https://forums.docker.com/t/the-designated-data-directory-var-lib-mysql-is-unusable-you-can-remove-all-files-that-the-server-added-to-it/147470 "2025-04-08T18:57:38Z")
I am running mysql container on ec2 instance(ubuntu). I have already mysql installed. I want to run another container for mysql version 8.0. I am running following command. I tried using manually created volume but still… --- ## [Port Mapping with custom Host IP on Linux](https://forums.docker.com/t/port-mapping-with-custom-host-ip-on-linux/147115)
**Author:** [@bernhardkrop](https://forums.docker.com/u/bernhardkrop)\ **Replies:** 19\ **Last updated:** [March 31, 2025, 6:34pm UTC](https://forums.docker.com/t/port-mapping-with-custom-host-ip-on-linux/147115 "2025-03-31T18:34:52Z")
Hi! I have problems creating a container with a custom host IP (other than “localhost” or “127.0.0.1”; e.g. “192.168.59.123”) on Linux. If using “localhost”, all works well. Last year, I had a MacBook and had the same … --- ## [Prometheus with docker works on 0.0.0.0:9323 but not with 127.0.0.1 in daemon.json](https://forums.docker.com/t/prometheus-with-docker-works-on-0-0-0-0-9323-but-not-with-127-0-0-1-in-daemon-json/147357)
**Author:** [@rpduarte](https://forums.docker.com/u/rpduarte)\ **Replies:** 5\ **Last updated:** [March 30, 2025, 1:23pm UTC](https://forums.docker.com/t/prometheus-with-docker-works-on-0-0-0-0-9323-but-not-with-127-0-0-1-in-daemon-json/147357 "2025-03-30T13:23:51Z")
I am trying to feed prometheus metrics to from docker, on my pi with ubuntu server. Ai have followed the instructions in the following page. However i cant seem to get it working when the dameon.json is set to 127.0.0.1.… --- ## [User inside Docker container has no file permissions in bound volumes](https://forums.docker.com/t/user-inside-docker-container-has-no-file-permissions-in-bound-volumes/147336)
**Author:** [@bernhardkrop](https://forums.docker.com/u/bernhardkrop)\ **Replies:** 4\ **Last updated:** [March 26, 2025, 10:31am UTC](https://forums.docker.com/t/user-inside-docker-container-has-no-file-permissions-in-bound-volumes/147336 "2025-03-26T10:31:11Z")
Hi! I have a problem with port mapping (I created a topic for it). In order to find a solution, I switched from Docker Desktop to Docker Engine. Unfortunately, my user inside the Docker container has no file permission… [Next page](https://forums.docker.com/tag/ubuntu/57.md?match_all_tags=true&page=1&tags%5B%5D=ubuntu)