To connect a running container to an existing user-defined bridge, use the docker network connect command. James Walker is a contributor to How-To Geek DevOps. Was working till last week and I don catch a reason why it began to fail as an endless "connecting..". Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Thanks for the link, but his container are, Docker portainer tcp 127.0.0.1:2375: connect: connection refused, How Intuit democratizes AI development across teams through reusability. . When connecting with TLS, the default port is. I think I instead of calling out a port you use - - network=host. Portainer version from 2017-07-31 Command: docker run -d -p 9000:9000 -v /var/run/docker.sock:/var/run/docker.sock portainer/portainer OS: CentOS Linux release 7.2.1511 (Core) Edit the file /usr/lib/systemd/system/docker.service Replace the line ExecStart=/usr/bin/dockerd with ExecStart=/usr/bin/dockerd -H unix:///var/run/docker.sock Using the command line to manage your Docker setup is pretty simple, but some people prefer a more visual user interface when managing their systems. - the incident has nothing to do with me; can I use this this way? You signed in with another tab or window. 2019/05/10 08:03:57 http error: Unable to query endpoint (err=Endpoint is down) (code=503), Very embarrassingthis is my spelling mistake.-_-it worked As a variant, if you already have a Portainer instance running elsewhere, and you just want to deploy the Portainer AGENT on the rootless host, use the following command: to your account. From inside of a Docker container, how do I connect to the localhost of the machine? Nothing helped. Portainer is a popular Docker UI that helps you visualise your containers, images, volumes and networks. Thanks to MrPaperbag on the Portainer Discord I found out it's because of a restriction by SELinux. Forward the windows port to the docker vm. "docker run --privileged -p 9000:9000 --name portainer --restart=always -v /var/run/docker.scok:/var/run/docker.sock portainer/portainer", but still Found the solution here: https://nanxiao.me/en/selinux-cause-permission-denied-issue-in-using-docker/. Reboot your machine in order to restore iptables rules (docker does it automatically) and try again. You are receiving this because you were mentioned. Have a question about this project? Did any DOS compatibility layers exist for any UNIX-like systems before DOS started to become outmoded? To learn more, see our tips on writing great answers. 2020/02/01 14:52:35 Templates already registered inside the database. You already create a docker macvlan/ipvlan network, hence are not out of the docker networks range on your experiements. On 2/02/2020, at 4:13 AM, Metal-Mighty wrote: Technical details: Well occasionally send you account related emails. The management of the path always depends on how your application handles the baseurl or the paths. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. GitCommit: 3e425f80a8c931f88e6d94a8c831b9d5aa481657 Portainer CE is open source and runs in a container itself, so installing it is a docker command and uninstalling it is as simple as removing the container. Make sure youve got Docker installed and running before proceeding any further. I can confirm that 1.16.2 does indeed work. Sign in Built: Wed Nov 13 07:24:29 2019 Portainer expects TLS certificates and keys to be in PEM format. Asking for help, clarification, or responding to other answers. Why do many companies reject expired SSL certificates as bugs in bug bounties? For example, - Search Google for localhost 4000 Once you select Local click the Connect button. My docker-compose.yml, i tried it on linux as host and #command: -H unix:///var/run/docker.sock works fine, but now I am using do windows as HOST. Thank you for letting me know! I have test with 192.168.0.15: and all work fine. Otherwise youll see connection refused or similar errors within your container. Then, what you'll want to do is type the following commands: Portainer cannot be accessed both from the host (curl 127.0.0.1:9000), with ssh port binding, and a reverse proxy. Making statements based on opinion; back them up with references or personal experience. Can you share your daemon.conf file? just try http://192.168.99.100:4000. Like so: docker run -d -p 9000:9000 -v /var/run/docker.sock:/var/run/docker.sock:z portainer/portainer Also we need a way to add the z or Z flag in Portainer for new containers. * Changing the port binding to something else (I tried 9005) doesn't work So instead of the container exposing a single port on the host machine, it uses the hosts ports. Please help us improve Stack Overflow. Volumes can be created and deleted with ease. You can now use the button row at the top of the screen to start, stop, restart or remove the container. Since we launched in 2006, our articles have been read billions of times. Even I was facing same problem and after implement the below solution where I replaced the "localhost" with docker ip address and it worked fine for me. Portainer recently reached version 2.0 which added support for Kubernetes clusters. Oops, I always got those mixed up for some reason. $ docker run --rm -d --network host --name my_nginx nginx Access Nginx by browsing to http://localhost:80/. i think maybe you visit http://localhost:4000 in browser on Windows,then you should use the docker default machine ip(generally 192.168.99.100). [] This lets you use Dockers per-container virtualized networking while providing a route to your host when its required. This will ensure the container restarts automatically should it crash, and start when the Docker host machine is booted up. Bug description Asking for help, clarification, or responding to other answers. At the bottom of the screen, youll find an advanced settings UI that offers even more options too many to cover exhaustively here. All Rights Reserved. What Is a PEM File and How Do You Use It? I obfuscated the Name in the info call above. When working with Docker, you usually containerize the services that form your stack and use inter-container networking to communicate between them. To learn more, see our tips on writing great answers. Having a dot or colon in the first part tells Docker that this name contains a hostname and that it should push to your specified location instead. For native Windows containers, check the last section of this post. If you set-up Portainer properly, then you should see your local docker server on the screen. 22. Containers ordinarily get their own private network thats separate to the hosts stack. On 10/05/2019, at 7:44 PM, > wrote: Now it works fine. Image: Jack Wallen/TechRepublic. @spyro2000 have you looked at the SELinux section in http://portainer.readthedocs.io/en/stable/deployment.html#declare-initial-endpoint-via-cli ? Youre now ready to begin using Portainer to interact with Docker. Containers which are currently running will show a green running state while stopped ones get a red stopped. Unable to create snapshot (endpoint=local, URL=unix:///var/run/docker.sock) (err=Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Go to the Portainer web interface, log in and then click on Endpoints (left menu) > + Add Endpoint and select the option Docker . Could you tell me if these files exist and give us their content: These files not exists. You can now login to Portainer by visiting http://localhost:9000 in your browser. Making statements based on opinion; back them up with references or personal experience. Portainer helps you quickly create, manage and monitor Docker containers. Experimental: false When you access Portainer for the first time you will be asked to create the initial administrator user. @kanbekotori And the output of ps -ef | grep portainer ? Now I have the error mentioned above, specifically http error: Unable to proxy the request via the Docker socket (err=dial unix /var/run/docker.sock: connect: no such file or directory) (code=500). /usr/lib/systemd/system/docker.service.d/docker.conf. You can either connect directly to the Docker API via TCP, or you can install the Portainer Agent on the Docker Standalone host and connect via the agent. The problem with the path is related to Portainer not to Traefik. @maddios there is an issue with the latest release unable to connect to Docker 1.12 environments, it has been fixed via #1750 and will be part of the next release. The Images screen allows you to view, pull, import, export and delete the images available on your endpoint. i think maybe you visit http://localhost:4000 in browser on Windows,then you should use the docker default machine ip(generally 192.168.99.100). To begin with, youll see a single local endpoint, representing the Docker Engine running on your own machine. It can still be useful in scenarios where youre confident that running containers wont conflict with each other or cause problems in your host environment. Portainer with rootless Docker has some limitations, and requires additional configuration. Is the docker daemon running? The -d flag means to start the container detached (in the background). in your host machine or within container? By clicking Sign up for GitHub, you agree to our terms of service and Here is a Loom Video: On you manual attempt, your created and enabled a vlan subinterface, then create the docker network and see that the containers are actualy using the subinterface. You signed in with another tab or window. This site cant be reached I already tested with docker run -p 4000:80 movila/friendlyhello and is working for me. How to get a Docker container's IP address from the host, How to deal with persistent storage (e.g. So the problem resides somewhere in my first host somehow, but I don't have a clue where. Why do academics stay as adjuncts for years rather than move around? to your account. option, then your environment type. ERR_CONNECTION_REFUSED. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Cannot connect to docker container's IP on forwarded port. Next, click the blue Add endpoint button. Reply to this email directly, view it on GitHub<, I see your command line: example: suppose your app works on port 3000. then you can do port-mapping in docker to your web app. Can you connect to your Docker daemon using the Docker CLI ? What is SSH Agent Forwarding and How Do You Use It? You may also choose to connect to a Git repository and use its docker-compose.yml directly. Choose which level of Portainer access control to apply and then click Deploy the stack. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Most Docker Engine installations will represent the host as 172.17.0.1 on the default docker0 bridge network. It works with Kubernetes, Docker, Docker Swarm and Azure ACI. Bug description Portainer cannot be accessed both from the host (curl 127.0.0.1:9000), with ssh port binding, and a reverse proxy. AC Op-amp integrator with DC Gain Control in LTspice. Can Martian regolith be easily melted with microwaves? Recovering from a blunder I made while emailing a professor. Is the docker daemon running? * A simple Nginx container has been started both on a random port and port 9000; it can be accessed in both cases so it shouldn't be related to networking Portainer is now running on the rootless Docker Instance. version: databases) in Docker, Docker: Copying files from Docker container to host. When I click the connect, it will show connecting for a few seconds, and then flashes to the same page. just try http://192.168.99.100:4000. rev2023.3.3.43278. Read more Portainer is a popular Docker UI that helps you visualise your containers, images, volumes and networks. What helped me was: #https://github.com/portainer/portainer/issues/6353 ; enable Websockets Support in Nginx Proxy Manager. Select your stack from the Stacks screen to manage its containers collectively. 2015 in Docker. Ours is going to be called portainer_data. To learn how to do this, refer to Docker's own documentation. First, create . The text was updated successfully, but these errors were encountered: oh, and when i run docker logs for the portainer instance I get: Never again after that, even by deleting the volume each time. Just replce your port number with "5050", it will work fine. A simple example with a whoami and a path A simple example with a training/webapp and a path Anyway, it is suppossed that a standard "friendlyhello" will run a web server on port 80 with a Hello World welcome page. Copyright 2023 | WordPress Theme by MH Themes, Install Portainer with a Docker Run Command, quick and easy steps to install Docker, here, 6 Awesome Docker Utilities Everyone Should Try, The Basic Anatomy of a Docker Run Command, 5 Simple Apps for Beginners to Self-Host in Docker, Add a Host Entry to a Docker Container in 1 Simple Step, Set up Unbound DNS in Docker in 5 Quick Steps, Painlessly Install Docker on a Synology NAS. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. And the output of docker logs portainer ? Disconnect between goals and daily tasksIs it me, or the industry? Thank you! Copy the command for your environment type and run it on your Docker Standalone instance. Have a question about this project? API version: 1.40 I had the same issue, but the caddy file broke and I had to update it, Is there a single-word adjective for "having exceptionally strong moral principles"? Can't connect to container console. 2020/02/01 14:52:35 server: Reverse tunnelling enabled By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. The webui is expected to show up with the first connection form, Steps to reproduce the issue: Press the blue Add registry button and define the URL, username and password of your registry. * Browser: Firefox, curl The container will connect directly to the Docker host via a volume that binds to the Docket socket at /var/run/docker.sock. http://192.168.99.100:4000/. Itll show up as a new selectable tile on the Portainer homescreen. Sign in You signed in with another tab or window. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Portainer: Got permission denied while trying to connect to the Docker daemon socket, https://nanxiao.me/en/selinux-cause-permission-denied-issue-in-using-docker/, How Intuit democratizes AI development across teams through reusability. Add a local environment. 2020/02/01 14:52:31 No administrator account was created after 5 min. If you running a nodejs app in the docker container, try '0.0.0.0' instead of 'localhost'. I would also recommend you to try the new portainer extension which you can install from the Docker Desktop GUI. docker run -d -p 8000:8000 -p 9000:9000 --restart=always -v /var/run/docker.sock:/var/run/docker.sock -v portainer_data:/data --name Portainer portainer/portainer Neil Cresswell The below command will create and run a container in Docker that will host the Portainer application. If so, how close was it? Running Pi-hole in Docker is Remarkably Easy! When you purchase through our links we may earn a commission. When connecting a Docker Standalone host to Portainer, there are two methods you can use. Even the develop TAG didn't work. Not the answer you're looking for? Connect and share knowledge within a single location that is structured and easy to search. Add an environment via the Portainer API. docker-machine ip. Since we launched in 2006, our articles have been read billions of times. The main navigation menu is in the left sidebar. Find centralized, trusted content and collaborate around the technologies you use most. Then to connect to my remote machine containers: docker . Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Connect to this IP address from within your containers to successfully access the services running on your host. All being well, youll be able to add your endpoint. Add an environment to an existing installation, Using your own SSL certificate with Portainer. Portainer lets you manage multiple Docker endpoints. Use this string inside your containers to access your host machine. This has been a feature since 1.7 e.g. Can carbocations exist in a nonpolar solvent? The hosts Docker socket is also mounted into the container, so that Portainer has access to your machines Docker instance. Followed the installation guide on Portainer.io and official ReadTheDocs page Host networking mode is a universal alternative which lets containers share your hosts networking stack. It would then try to push to the default Central Registry. He is the founder of Heron Web, a UK-based digital agency providing bespoke software development services to SMEs. Take Screenshot by Tapping Back of iPhone, Pair Two Sets of AirPods With the Same iPhone, Download Files Using Safari on Your iPhone, Turn Your Computer Into a DLNA Media Server, Control All Your Smart Home Devices in One App. OS/Arch: linux/amd64 It will be good if you could share the Docker version and OS you are working on. Using indicator constraint with two variables, Linear regulator thermal information missing in datasheet. Let's say you want to name your environment Docker Swarm and the controller is at IP address 192.168.1.13. rev2023.3.3.43278. As you can see from the sixth option, I am running Docker using Linux Container (I recommend this type of containers)! Install plugins in the Docker container You can install official and community plugins listed on the Grafana plugins page or from a custom URL. Youve got several options when you need to reach outside a Docker container to your machines localhost. Radial axis transformation in polar kernel density estimate. My docker in my windows, my container is linux. Steps to reproduce the issue: Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. We had a user with a similar issue in the past that was caused by them installing docker to a non-standard location. At the top of the screen, youll find five buttons under Container status that allow you to view the containers logs (Logs), inspect its Docker manifest (Inspect), view resource usage statistics (Stats), access an interactive console (Console) or attach a console to the foreground process in the container (Attach). These replicate the entire functionality of the docker run CLI command, enabling you to set up the containers command, entrypoint, volumes, network interfaces and environment variables. Alternatively, you can also connect via TCP. Docker: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock, How to fix docker: Got permission denied issue, Docker execution of Symfony commands: Permission denied, How to fix "permission denied" error while running docker-compose, Equation alignment in aligned environment not working properly. Docker provides a host network which lets containers share your hosts networking stack. The host network is the network of the virtual machine behind Docker Desktop. The following command connects an already-running my-nginx container to an already-existing my-net network: $ docker network connect my-net my-nginx Disconnect a container from a user-defined bridge Before you begin, you will need to ensure that your Docker instance is configured to admit remote connections. Portainer helps you take control of the Docker resources on your machine, avoiding lengthy terminal commands. When connecting with TLS, the default port is 2376. Choose the type of endpoint youll be using and supply your connection details. You just need to reference it by its Docker network IP, instead of localhost or 127.0.0.1. To add an additional endpoint, click the Endpoints link in the sidebar. The page tries to load until the container restarts due to the 5mins of inactivity. Is the docker daemon running? Rgds, Sign in Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). GitCommit: fec3683 Select the key that matches the certificate. Neil Cresswell Despite numerous attempts it wasnt resolved by playing with the port numbers and image rebuilds, or complete wipe of the docker container. When using the built-in users database, you can use the Users link in the sidemenu to create additional users and sort them into teams. Correct way is to add :z to the volume mapping, so you're not defeating the purpose of docker. Not the answer you're looking for? How is Docker different from a virtual machine? Adding a remote environment to Portainer. Go version: go1.12.12 He has experience managing complete end-to-end web development workflows, using technologies including Linux, GitLab, Docker, and Kubernetes. but still If so, how close was it? Client: Docker Engine - Community What should I used on line command: -H ???????? Finally, port 9000 on the host is bound to port 9000 within the container. Disabled. to your account. Connect and share knowledge within a single location that is structured and easy to search. How can I check before my flight that the cloud separation requirements in VFR flight rules are met? Templates can be accessed from the stack creation screen and allow you to quickly spin up new instances of frequently used services. Don't expose your ports, because you don't need to do that. Trying to enable docker api and now only getting Cannot connect to the Docker daemon at tcp://0.0.0.0:2375. Additionally, you are able to view the logs of your containers and access the container console to execute commands from within your web browser. How do/should administrators estimate the cost of producing an online introductory mathematics class? November 2019 4) Tried using the other ports for Portainer as per 'docker container ls' but the result is the same. Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? Select the method to use and then fill out the form fields to setup your preferred authentication system. When connecting without TLS, the default port is 2375. 2020/02/01 14:47:31 server: Fingerprint 34:a6:57:6b:73:89:4b:31:c7:a3:75:e8:0a:aa:94:22 How to copy Docker images from one host to another without using a repository. Go version: go1.12.12 Youll need to set a password for the admin user upon first use. but then the endpoints/{number} call is coming back as 200 but it's just empty. We select and review products independently. You are receiving this because you are subscribed to this thread. Is there any way to diagnose this issue? {"ID":"SPJZ:7JSJ:4FF3:CJFQ:7HOY:ZXXM:HLNO:U2F5:4ELS:IASK:JPY7:IBM7","Containers":8,"ContainersRunning":1,"ContainersPaused":0,"ContainersStopped":7,"Images":1,"Driver":"aufs","DriverStatus":[["Root Dir","/var/lib/docker/aufs"],["Backing Filesystem","extfs"],["Dirs","18"],["Dirperm1 Supported","false"]],"SystemStatus":null,"Plugins":{"Volume":["local"],"Network":["bridge","null","host","overlay"],"Authorization":null},"MemoryLimit":true,"SwapLimit":false,"KernelMemory":true,"CpuCfsPeriod":true,"CpuCfsQuota":true,"CPUShares":true,"CPUSet":true,"IPv4Forwarding":true,"BridgeNfIptables":true,"BridgeNfIp6tables":true,"Debug":false,"NFd":38,"OomKillDisable":true,"NGoroutines":45,"SystemTime":"2018-03-22T16:57:13.900699496-04:00","ExecutionDriver":"","LoggingDriver":"json-file","CgroupDriver":"cgroupfs","NEventsListener":0,"KernelVersion":"3.13.0-132-generic","OperatingSystem":"Ubuntu 14.04.5 LTS","OSType":"linux","Architecture":"x86_64","IndexServerAddress":"https://index.docker.io/v1/","RegistryConfig":{"InsecureRegistryCIDRs":["127.0.0.0/8"],"IndexConfigs":{"docker.io":{"Name":"docker.io","Mirrors":null,"Secure":true,"Official":true}},"Mirrors":null},"NCPU":8,"MemTotal":16763670528,"DockerRootDir":"/var/lib/docker","HttpProxy":"","HttpsProxy":"","NoProxy":"","Name":"server.local","Labels":null,"ExperimentalBuild":false,"ServerVersion":"1.12.6-cs13","ClusterStore":"","ClusterAdvertise":"","SecurityOptions":["apparmor"],"Runtimes":{"runc":{"path":"docker-runc"}},"DefaultRuntime":"runc","Swarm":{"NodeID":"","NodeAddr":"","LocalNodeState":"inactive","ControlAvailable":false,"Error":"","RemoteManagers":null,"Nodes":0,"Managers":0,"Cluster":{"ID":"","Version":{},"CreatedAt":"0001-01-01T00:00:00Z","UpdatedAt":"0001-01-01T00:00:00Z","Spec":{"Orchestration":{},"Raft":{},"Dispatcher":{},"CAConfig":{},"TaskDefaults":{}}}},"LiveRestoreEnabled":false}. vegan) just to try it, does this inconvenience the caterers and staff? When working with Docker, you usually containerize the services that form your stack and use inter-container networking to communicate between them. Localhost hasn't been responding to any of the images I run in Docker. What is the purpose of non-series Shimano components? Docker Desktop 18.03+ for Windows and Mac supports host.docker.internal as a functioning alias for localhost. Youll arrive at a simple dashboard giving you an overview of your containers, images and volumes. Thanks for contributing an answer to Stack Overflow! Engine: Why do small African island nations perform better than African continental nations, considering democracy and human development? I'm on a fresh Fedora CoreOS which comes with Docker version 19.03.11. Toggle it off if you don't want to use TLS. I use latest Docker and WSL on my local Windows machine. You can create advanced Docker networks using various built-in drivers and manage those networks. i have installed portainer when i click connect on Local (manage the local docker environment) i'm getting this error: Failure Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Create and start the container as a detached process. Even executing as the default first user id is the same result as trying to drop in as root, which is unfortunate because it would be a very handy function if it worked (has never worked for me), wether the container supports /bin/bash or not is irrelevant, since in most of my cases the containers do, yet it doesn't work, +1 Same here. With Docker Portainer in your toolkit, managing your Docker containers and images has never been effortless. Git commit: 633a0ea838 Open your preferred terminal app; Login to the manager machine via ssh; Run the commands below as super-user or with sudo : Cannot connect to the Docker daemon at unix:/var/run/docker.sock. Already on GitHub? Followed the installation guide on Portainer.io and official ReadTheDocs page. 2018/03/22 20:26:18 Starting Portainer 1.16.4 on :9000. what's incredible is that the API calls work just fine, and that it DID work the very first time I installed and started it. November 2019 ryecoaaron Moderator 4.845 Beitrge 35.050 22. If you have anything else on that line, remove it. Please be my guest and close this thread :-). Using the Portainer Edge Agent . Find centralized, trusted content and collaborate around the technologies you use most. For the Nozomi from Shinagawa to Osaka, say on a Saturday afternoon, would tickets/seats typically be available - or would you need to book? 2020/02/01 14:47:31 [DEBUG] [chisel, monitoring] [check_interval_seconds: 10.000000] [message: starting tunnel management process] Sometimes you might need a container to talk to a service on your host that hasn't been containerized. Using Portainer to Manage Docker Once you login to Portainer you will be presented with the home screen. I followed these same steps when I setup portainer at work and it worked just fine, so i'm guessing something is missing from normal startup? Why did Ukraine abstain from the UNHRC vote on China? You can stop all the containers in the stack, or delete the stack entirely, using the buttons at the top of the screen. RELATED: How to Install Docker and Docker Compose on Linux. Much of this UI should feel intuitive if youre already familiar with Dockers capabilities. Most of the settings should be fairly self-explanatory, with the majority focused on limiting the power afforded to non-administrator users. Why are physically impossible and logically impossible concepts considered separate in terms of probability? Finally, the container will be configured to restart always. Add a Kubernetes environment. I got it changed. /etc/sysconfig/docker Is there any way Before beginning to use Portainer, its worth looking at the apps own configuration options. When you purchase through our links we may earn a commission. Version: 1.2.10 Doesn't analytically integrate sensibly let alone correctly, Check if your container is actually running on port 80, Maybe your app is on HTTPS. This screen allows you to inspect the containers properties, create a new Docker image from its current state and manage its network connections. From the homescreen, click your local endpoint. Thanks for contributing an answer to Stack Overflow! For public images on Docker Hub, such as wordpress:latest, you can type an image name without providing any additional configuration. Is the docker daemon running? "docker run --privileged -p 9000:9000 --name portainer --restart=always -v /var/run/docker.scok:/var/run/docker.sock portainer/portainer" After you run the command to install Portainer, your output should look something like this: Now that your new Portainer container is up and running, you can access it at http://dockerhostip:9000. Is the docker daemon running?" Trying to understand how to get this basic Fourier Series, Short story taking place on a toroidal planet or moon involving flying, Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?).
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