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- What should I do if docker cannot be accessed by the outside world?
- The solution to the problem that docker cannot be accessed by the outside world is: 1. Restart iptables; 2. Execute the command [iptables -t nat -A POSTROUTING -s 172.17.0.0/16 ! -o docker0 -j MASQUERADE] to add rules.
- Docker 2569 2020-03-24 14:40:59
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- What should I do if docker cannot delete the container?
- The solution to the problem that docker cannot delete the container is: 1. First, execute the umount command to cancel the mounting; 2. Then, execute the command [docker kill --signal=SIGINT caf8ef20f3c1] to delete the container service.
- Docker 4701 2020-03-24 14:25:36
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- What are the advantages of docker
- Advantages of docker: 1. Fast, docker shares an operating system through kernel sharing, which improves the speed of starting and stopping docker containers; 2. Portability, as long as the docker container is still running, the application can be guaranteed to work normally run.
- Docker 3725 2020-03-24 14:09:20
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- There are several states of docker containers
- Docker containers are roughly divided into three states from generation to running deployment: 1. Dockerfile, a template file used to create an image image; 2. Image, an image file; 3. Container, a container.
- Docker 10350 2020-03-24 14:00:32
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- How to check the created container ID in docker
- How to check the container ID with docker: 1. Use the docker ps -aqf "name=containername" command to check. 2. Use the docker inspect --format="{{.Id}}"container_name command to view.
- Docker 17614 2020-03-24 13:58:30
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- How to check the specific version number in docker
- How to check the specific version number of docker: You can use the docker version command to check the specific version number. The docker version command is used to display Docker version information.
- Docker 6415 2020-03-24 13:52:31
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- What should I do if the docker container port cannot be accessed?
- The solution to the problem that the docker container port cannot be accessed is: 1. Execute the command [docker stop $(docker ps -a -q)] to stop all containers; 2. Execute the command [docker rm $(docker ps -aq)] to delete all container.
- Docker 5720 2020-03-24 13:50:31
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- What is the difference between docker and vmware
- The difference between docker and vmware is: vmware is a slave operating system created based on the host machine operating system. The docker daemon replaces the slave operating system in VMware. It is a background process running on the operating system and is used to manage docker. container.
- Docker 5956 2020-03-24 13:40:28
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- How docker packages images into files
- The way docker packages the image into a file is to execute the command [docker save -o file name to save image to save], such as [docker save -o cc.tar bb:v1.0].
- Docker 5502 2020-03-24 11:55:19
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- How to configure Alibaba Cloud image with docker
- The method for docker to configure the Alibaba Cloud image is: 1. Create a new /etc/docker folder; 2. Add the Alibaba Cloud image; 3. Execute the [systemctl restart docker] command to restart docker.
- Docker 3193 2020-03-24 11:40:34
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- How docker sets port mapping for running containers
- The method for docker to set port mapping for a running container is: 1. First, replace container_name with the container name in the actual environment; 2. Then, map the 8000 port of the container to the 8001 port of the docker host.
- Docker 4125 2020-03-24 11:28:14
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- How to change the mapped port in docker
- The method for docker to change the mapped port is: 1. Find the container that needs to change the port; 2. Change the default environment variable of docker; 3. Stop the container; 4. Stop the docker service; 5. Edit and change the configuration file of the container; 6. Start docker Services and containers.
- Docker 4144 2020-03-24 11:18:52
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- What to do if yum cannot be used in docker
- The solution to the inability to use yum in docker is: 1. First, open the /etc/sysctl.conf configuration file; 2. Then, add routing forwarding configuration, such as [net.ipv4.ip_forward=1]; 3. Finally, restart the network card That’s it.
- Docker 5486 2020-03-24 10:36:26
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- Unable to connect to the Internet after installing docker
- To solve the problem that Docker cannot connect to the Internet: Add "net.ipv4.ip_forward=1" to the /etc/sysctl.conf file, and then use the "systemctl restart network" command to restart the service.
- Docker 4728 2020-03-24 10:30:23
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- What should I do if the docker container cannot be stopped?
- The solution to the problem that the docker container cannot be stopped is: 1. Execute the command [docker rm -f jenkins] to forcefully delete the container; 2. Execute the command [docker network disconnect --force bridge jenkins] to clear the network occupation.
- Docker 2931 2020-03-23 18:27:45
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