On Thu, 6 Oct 2022 at 18:37, Darren Whobrey wrote: > > Hi, I'm using the latest version of Cygwin (3.3.6) and the Cygwin OpenSSH > (OpenSSH_9.0p1, OpenSSL 1.1.1q 5 Jul 2022) version of ssh to talk to hosts > using ControlMaster connection sharing. This uses sockets behind the scenes. > When ControlMaster is set to no, the connection is successful. > > Ssh connections are failing at the point where IO starts to be forwarded to > the host. > > Here's a snippet of log output from "ssh -vvv some-host": > > <snip> > > When successful connections are made from an OL7 client (with older version > of OpenSSH, but mux commands are similar), comparative logs are: > > <snip> > > According to this web posting, it suggests the bug lies with "file > descriptors over unix sockets do not work in Cygwin": > https://exchangetuts.com/is-ssh-controlmaster-with-cygwin-on-windows-actually-possible-1639696447917488 > > Is this something that can be fixed?
I'm very confident it *can* be fixed! But this gap has existed since at least 2009 (see https://cygwin.com/pipermail/cygwin/2012-February/199995.html and https://sourceware.org/legacy-ml/cygwin/2009-10/msg00397.html) so I suspect that, unless you're proposing to do the work or pay someone to do it on your behalf, it's unlikely to happen any time soon. -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple
