ssh connect to host port 22: Connection refused
So I have a docker container and I want to connect to it with ssh from host(I know it's not indicated to ssh to a docker container, but I need to do it).
I have installed open ssh server on both container and host and the service is running on both. I also checked the ports for both docker and host and both are 22. I'm trying to connect to it as root and also as non privileged user. What can I do?
when running ssh user@host -vvv I'm getting this:
debug1: reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 19: Applying options for *
debug2: resolving "host" port 22
debug2: ssh_connect_direct: needpriv 0
debug2: connecting to host [host] port 22
debug1: connect to address host port 22: connection refused1 Answer
By default docker containers do not expose any ports.
To expose port to your host you need to add the option: -p 22:22 to expose the port when you start running the container.
Example:
docker run -p 22:22 $CONTAINER_NAME
To permanatly expose a port in Docker you need to edit the Dockerfile for the container and rebuild it.
In the Dockerfile add the line.
EXPOSE 22
Not recommended to expose ssh port to a conatiner running in production.
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