使用 ssh 连接到 docker 容器时出错

Question

I got a container that has openssh installed and can be connnected via the command ssh 172.17.0.2 .

Now I want to get a port (say 32769) on the host side, and map the port 22 (of docker container) to it, the reason for doing that is I want to get the ssh 127.0.0.1 -p 32769 works on localhost, I got the errors as : ssh_exchange_identification: read: Connection reset by peer . The port mapping is showing normally on docker engine: 0.0.0.0:32769->22/tcp .

Can somebody help me with that? Much appreciated!

Answer 1

Check that the SSH daemon is running in your container first (through a docker exec or docker attach session):

service ssh status
# or
service sshd status

Make sure you have the right IP address

sudo docker inspect -f "{{ .NetworkSettings.IPAddress }}" Container_Name

Use the right SSH URL:

ssh root@172.17.0.2

See more in " How to SSH into a Running Docker Container and Run Commands " from Sofija Simic.

Using a docker run -p 32769:22 is in your case a good idea.

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The OP mentions in the discussion an issue with docker proxy:

The docker-proxy was not getting eth0 of the container as -container-ip .
Here is what I've got

/usr/bin/docker-proxy -proto tcp -host-ip 0.0.0.0 -host-port 32785 \\ -container-ip 172.21.1.2 -container-port 22