id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
137	Tub.listenOn(portfile=)	warner		It would be handy to have a portfile= argument to Tub.listenOn(), just like\r\nTub(certFile=) and Tub.registerReference(furlFile=). This would simplify the\r\nTahoe and flappserver setup code that tries to handle port=0 (by saving the\r\nkernel-assigned port number in a file, and then re-using it on later\r\ninvocations).\r\n	enhancement	new	major	undecided	usability	0.4.1