Indeed; however, if you have a lingering control file (because an old ssh process was killed, or there was a power failure and it was somehow not removed), it w

Indeed; however, if you have a lingering control file (because an old ssh process was killed, or there was a power failure and it was somehow not removed), it will either refuse to use it, or (occasionally, and I haven't been able to pinpoint when), would just wait there forever. edit: a typo