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SSH port-forward on host to Docker Toolbox

Note

This is a Remote SSH port-forward (ssh -R)

Table of Contents

Overview

This is a remote SSH port-forward (ssh -R). In other words, the host os will make the port remotely availabl on the Docker Toolbox machine. Therefore the process must be initiated on the host os.

General command

The following represents the general structure of a remote ssh port-forward:

ssh -R <DockerToolbox_Port>:<HostOS_SRV_IP>:<HostOS_SRV_Port> <DockerToolbox_SSH_USER>@<DockerToolbox_SSH_IP>
<DockerToolbox_Port> The port on the Docker Toolbox machine the service should be made available
<HostOS_SRV_IP> The IP address on the host os, where the service is currently listening
<HostOS_SRV_PORT> The port on the host os, where the service is bound to
<DockerToolbox_SSH_USER> The username of the host os SSH server for the connection
<DockerToolbox_SSH_IP> The IP address of the host at which the SSH server is reachable

Command example

Making 127.0.0.1:10000 from host os available on 0.0.0.0:8080 on Docker Toolbox machine:

ssh -R 8080:127.0.0.1:10000 docker@192.168.99.100
8080 Docker Toolbox should make the port available on itself on this port
127.0.0.1 The service currently listens on that IP address on the host os
10000 The service is currently bound to that port on the host os
docker The username of the Docker Toolbox SSH server for the connection
192.168.99.100 The IP address of the Docker Toolbox at which the SSH server is reachable

Examples

For this example we assume the following information:

  • Docker Toolbox IP address is 192.168.99.100
  • Docker Toolbox SSH username is docker

Make host-based MySQL available on Docker Toolbox

  1. Open a terminal on your host os

  2. Forward: 127.0.0.1:3306 from host os to 0.0.0.0:3306 on Docker Toolbox

    toolbox> ssh -R 3306:127.0.0.1:3306 docker@192.168.99.100
    

Make host-based PgSQL available on Docker Toolbox

  1. Open a terminal on your host os

  2. Forward: 127.0.0.1:5432 from host os to 0.0.0.0:5432 on Docker Toolbox

    toolbox> ssh -R 5432:127.0.0.1:5432 docker@192.168.99.100