How to connect to a remote server using Docker
How does Docker connect to the server?
Docker is the most popular containerization technology today and has high flexibility and portability. Many developers and IT operations personnel are using Docker to simplify and optimize the deployment and operation of applications. However, for some Docker novices, how to connect to a remote server locally is a problem. This article will introduce how to use Docker to connect to a remote server.
1. Install Docker
Before connecting to the remote server, you first need to install Docker locally. After downloading and installing Docker from the official website [https://www.docker.com/products/docker-desktop], check the Docker version number through the terminal to confirm whether Docker has been installed correctly.
2. Create a remote server
Next, create a remote server. Here we take the Alibaba Cloud ECS service as an example. First, log in to the Alibaba Cloud official website, enter the ECS management console, select "Instance" - "Create Instance", fill in the information according to the prompts, select the appropriate operating system and other information, and finally purchase to successfully create the instance.
3. Configure SSH for the remote server
After creating the instance, you need to configure the SSH connection for subsequent Docker connections. After entering the ECS instance list, find your instance, click "Remote Connection", and then proceed to the next step to view some information about the SSH connection.
Then you need to use the ssh command in the local terminal to connect to the server. Here we also take the Alibaba Cloud ECS service as an example:
ssh root@47.**.**.**
Note that the 47...* here * is the IP address of your remote server. Of course, you also need to add local host trust to the server by entering a password or SSH private key. This is an important security configuration for SSH connections.
4. Start the Docker service on the remote server
We have installed Docker locally, and next we will start the Docker service on the remote server. Execute the following commands in the terminal:
curl -fsSL https://get.docker.com -o get-docker.sh sudo sh get-docker.sh systemctl enable docker systemctl start docker
These commands will download and install Docker on the server, and also enable and start the Docker service.
5. Connect to the remote Docker server locally
Now that you have successfully connected to the remote server and started the Docker service on the server, you only need to connect the Docker client to the local machine. Remote Docker server. Execute the following command in the terminal:
docker -H ssh://root@47.**.**.**:2375 ps
Among them, "ssh://root@47...**:2375" is the address and port number of the remote Docker server, 2375 is The default port number of the Docker service. Of course, the IP address here also needs to be replaced with your corresponding address.
At this point, we have successfully connected to the remote Docker server locally and can operate the Docker container on the remote server on the local client.
Summary
This article introduces how to use Docker to connect to a remote server. Through the above five steps, we can successfully connect the Docker client to the remote Docker server. In this way, we can deploy containerized applications to remote servers and perform flexible management and maintenance. If you are using Docker or considering using Docker, I hope this article can help you.
The above is the detailed content of How to connect to a remote server using Docker. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



Docker is a must-have skill for DevOps engineers. 1.Docker is an open source containerized platform that achieves isolation and portability by packaging applications and their dependencies into containers. 2. Docker works with namespaces, control groups and federated file systems. 3. Basic usage includes creating, running and managing containers. 4. Advanced usage includes using DockerCompose to manage multi-container applications. 5. Common errors include container failure, port mapping problems, and data persistence problems. Debugging skills include viewing logs, entering containers, and viewing detailed information. 6. Performance optimization and best practices include image optimization, resource constraints, network optimization and best practices for using Dockerfile.

DockerVolumes ensures that data remains safe when containers are restarted, deleted, or migrated. 1. Create Volume: dockervolumecreatemydata. 2. Run the container and mount Volume: dockerrun-it-vmydata:/app/dataubuntubash. 3. Advanced usage includes data sharing and backup.

The steps to update a Docker image are as follows: Pull the latest image tag New image Delete the old image for a specific tag (optional) Restart the container (if needed)

Docker security enhancement methods include: 1. Use the --cap-drop parameter to limit Linux capabilities, 2. Create read-only containers, 3. Set SELinux tags. These strategies protect containers by reducing vulnerability exposure and limiting attacker capabilities.

Four ways to exit Docker container: Use Ctrl D in the container terminal Enter exit command in the container terminal Use docker stop <container_name> Command Use docker kill <container_name> command in the host terminal (force exit)

Methods for copying files to external hosts in Docker: Use the docker cp command: Execute docker cp [Options] <Container Path> <Host Path>. Using data volumes: Create a directory on the host, and use the -v parameter to mount the directory into the container when creating the container to achieve bidirectional file synchronization.

How to restart the Docker container: get the container ID (docker ps); stop the container (docker stop <container_id>); start the container (docker start <container_id>); verify that the restart is successful (docker ps). Other methods: Docker Compose (docker-compose restart) or Docker API (see Docker documentation).

How to use Docker Desktop? Docker Desktop is a tool for running Docker containers on local machines. The steps to use include: 1. Install Docker Desktop; 2. Start Docker Desktop; 3. Create Docker image (using Dockerfile); 4. Build Docker image (using docker build); 5. Run Docker container (using docker run).
