`letsencrypt.plugins.util`¶

Plugin utilities.

letsencrypt.plugins.util.already_listening(port)[source]¶

Check if a process is already listening on the port.

If so, also tell the user via a display notification.

Warning

On some operating systems, this function can only usefully be run as root.

Parameters:	port (int) – The TCP port in question.
Returns:	True or False.

letsencrypt.plugins.util¶