ssh connection timed out

To troubleshoot an SSH connection timeout issue in Ruby, you can follow these steps:

Step 1: Verify the SSH server is running - Check if the SSH server is running on the remote machine you are trying to connect to. Ensure that the SSH server is properly installed and configured.

Step 2: Check network connectivity - Verify that you have a stable network connection. Ensure that you can reach the remote machine and that there are no network issues or restrictions that could be causing the timeout.

Step 3: Verify the SSH client configuration - Check the SSH client configuration on the local machine. Make sure that the correct SSH server address, port, and login credentials are provided.

Step 4: Check firewall and security settings - If you are connecting to the remote machine through a firewall, ensure that the necessary ports (usually port 22 for SSH) are open and accessible. Also, check any security settings or access control lists that might be blocking the connection.

Step 5: Increase SSH timeout settings - If the timeout issue persists, you can try increasing the SSH timeout settings. This can be done by setting the Timeout option in the SSH client configuration to a larger value. For example:

Net::SSH.start('hostname', 'username', timeout: 60) do |ssh|
  # SSH operations here
end

In the above example, the timeout is set to 60 seconds. Adjust the timeout value as needed.

Step 6: Check for any server-side issues - If none of the above steps resolve the issue, it's possible that there might be server-side issues causing the timeout. Check the server logs for any error messages or indications of connectivity problems.

By following these steps, you should be able to troubleshoot and resolve the SSH connection timeout issue in Ruby.