SSH connection refused from Windows 10 and ChromeOS

  • 1 year ago
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If you are experiencing "SSH connection refused" errors when trying to connect to a remote server from both Windows 10 and ChromeOS, there are several potential reasons for this issue. Here are some common troubleshooting steps to resolve the problem:

  1. Check SSH Server Status: Ensure that the SSH server is running and active on the remote server. On the remote server, you can check the status of the SSH service using the following command:

    lua
    systemctl status ssh

    If the SSH service is not running, start it with:

    sql
    sudo systemctl start ssh

  2. Check Firewall Settings: Ensure that the firewall on the remote server is not blocking incoming SSH connections. On most Linux distributions, the default SSH port is 22. If you have modified the SSH port, make sure to allow traffic on the correct port in the firewall settings.

  3. Verify SSH Configuration: Check the SSH configuration file on the remote server to ensure that it allows remote connections. The configuration file is usually located at /etc/ssh/sshd_config. Ensure that the following lines are present and not commented out:

    bash
    Port 22  # or the custom port if you changed it
    
PermitRootLogin yes  # Allow root login if needed (not recommended for security reasons)
    
PasswordAuthentication yes  # Allow password-based authentication

  4. Check Network Connectivity: Verify that both Windows 10 and ChromeOS devices have an active internet connection. Ensure that you can reach the remote server's IP address or hostname from both devices.

  5. Check SSH Client: Ensure that you are using a valid SSH client on both Windows 10 and ChromeOS. On Windows, you can use the built-in ssh command in PowerShell or install third-party SSH clients like PuTTY. On ChromeOS, the built-in ssh command should be available in the Crosh shell.

  6. Verify SSH Credentials: Ensure that you are using the correct username and password (if applicable) for the SSH connection. If you are using key-based authentication, make sure that you have the correct private key and that it has the correct permissions (usually 600).

  7. Check SSH Port Forwarding: If you are using SSH port forwarding (tunneling), ensure that it is set up correctly. Incorrect port forwarding configurations can cause connection issues.

  8. Restart SSH Service: After making any changes to the SSH server configuration, restart the SSH service on the remote server to apply the changes:

    sudo systemctl restart ssh

By following these steps, you should be able to troubleshoot and resolve the "SSH connection refused" issue on both Windows 10 and ChromeOS. If the issue persists, check the remote server's logs for any error messages that might provide more information about the problem.