A test SSH server that uses keyboard-interactive authentication and listens on port 4444.

For comprehensive testing instructions and automated setup, see TESTING_GUIDE.md.

# Start complete development environment
./start-dev.sh

# Test SSH connection
./test-connection.sh

# Stop all services
./stop-dev.sh

We provide three Docker configurations for different testing scenarios:

1. Dockerfile - Basic SSH server with keyboard-interactive authentication
2. Dockerfile.debug - SSH server with password authentication and debug logging (recommended)
3. Dockerfile.password - SSH server with standard password authentication

# Use the Debian Bullseye Slim image as the base
FROM debian:bullseye-slim

# Install the necessary packages
# Use the Debian Bullseye Slim image as the base
FROM debian:bullseye-slim

# Install the necessary packages
RUN apt-get update && \
    apt-get install htop -y --no-install-recommends \
    openssh-server && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/*

# Configure SSH server
RUN mkdir /var/run/sshd && \
    sed -i 's/^ChallengeResponseAuthentication no/ChallengeResponseAuthentication yes/' /etc/ssh/sshd_config && \
    echo 'PermitRootLogin yes' >> /etc/ssh/sshd_config && \
    echo 'Port 4444' >> /etc/ssh/sshd_config && \
    echo 'UsePAM yes' >> /etc/ssh/sshd_config && \
    echo 'AuthenticationMethods keyboard-interactive' >> /etc/ssh/sshd_config

# Add a test user with a password
RUN useradd -m testuser && \
    echo "testuser:testpassword" | chpasswd

# Expose port 4444
EXPOSE 4444

# Start the SSH server
CMD ["/usr/sbin/sshd", "-D", "-e"]

1. Build the Docker image:

   docker build -t keyboard-ssh-server .

2. Run the container:

   docker run --rm -p 4444:4444 --name keyboard-ssh-server keyboard-ssh-server

This Dockerfile sets up an SSH server that listens on port 4444 and uses keyboard-interactive authentication. The testuser has been created with the password testpassword.

You can connect to this SSH server using the following command:

ssh -p 4444 testuser@localhost

You'll be prompted for a password as part of the keyboard-interactive authentication process.

• Host: localhost
• Port: 4444
• Username: testuser
• Password: testpassword

The provided scripts automate the entire development setup:

1. start-dev.sh - Starts Docker SSH server, WebSSH2 server, and client in separate tmux sessions
2. stop-dev.sh - Stops all services and cleans up
3. test-connection.sh - Tests SSH connectivity to ensure the server is working

See TESTING_GUIDE.md for detailed tmux usage and troubleshooting.