I am trying to set up an Ubuntu container with
openssh-server so I can ssh into it from the host. I know it's not the standard way of doing it but I really want to have
This is my
# Select base image FROM ubuntu:16.04 # Set the current working directory WORKDIR /home # Update the system, download any packages essential for the project RUN dpkg --add-architecture i386 RUN apt-get update && apt-get upgrade -y RUN apt-get install -y git build-essential make gcc vim net-tools iputils-ping ca-certificates openssh-server libc6:i386 libstdc++6:i386 # Allow ssh root login RUN echo "root:root" | chpasswd # RUN rpl "PermitRootLogin prohibit-password" "PermitRootLogin yes" /etc/ssh/sshd_config RUN sed -i 's/prohibit-password/yes/' /etc/ssh/sshd_config RUN cat /etc/ssh/sshd_config RUN mkdir /root/.ssh RUN chown -R root:root /root/.ssh;chmod -R 700 /root/.ssh RUN echo “StrictHostKeyChecking=no” >> /etc/ssh/ssh_config RUN service ssh restart # Open port 22 so linked containers can see it EXPOSE 22 # Import any additional files into the environment (from the host) ADD otherfile .
I start the container with
docker run -t -d -p 2222:22 but whenever I try to ssh into it I always end up getting the error
ssh_exchange_identification: Connection closed by remote host:
➜ ssh -v -p 2222 root@localhost /bin/bash OpenSSH_7.9p1, LibreSSL 2.7.3 debug1: Reading configuration data /Users/giorgio/.ssh/config debug1: Reading configuration data /etc/ssh/ssh_config debug1: /etc/ssh/ssh_config line 48: Applying options for * debug1: /etc/ssh/ssh_config line 52: Applying options for * debug1: Connecting to localhost port 2222. debug1: Connection established. debug1: identity file /Users/giorgio/.ssh/id_rsa type -1 debug1: identity file /Users/giorgio/.ssh/id_rsa-cert type -1 debug1: identity file /Users/giorgio/.ssh/id_dsa type -1 debug1: identity file /Users/giorgio/.ssh/id_dsa-cert type -1 debug1: identity file /Users/giorgio/.ssh/id_ecdsa type -1 debug1: identity file /Users/giorgio/.ssh/id_ecdsa-cert type -1 debug1: identity file /Users/giorgio/.ssh/id_ed25519 type -1 debug1: identity file /Users/giorgio/.ssh/id_ed25519-cert type -1 debug1: identity file /Users/giorgio/.ssh/id_xmss type -1 debug1: identity file /Users/giorgio/.ssh/id_xmss-cert type -1 debug1: Local version string SSH-2.0-OpenSSH_7.9 ssh_exchange_identification: Connection closed by remote host
Does anyone knwo what causes this error and how to fix it?