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Re: ssh session hangs while running cmd on remote server
- From: morgan gangwere <0 dot fractalus at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 01 Jun 2007 16:20:27 -0600
- Subject: Re: ssh session hangs while running cmd on remote server
- References: <10900723.post@talk.nabble.com> <465F2B22.5000502@cygwin.com> <20070531201428.GB21273@ednor.casa.cgf.cx> <465F2F94.503@cygwin.com> <20070531203100.GB21388@ednor.casa.cgf.cx> <465F55EE.8070409@cygwin.com>
- Reply-to: cygwin at cygwin dot com
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Larry Hall (Cygwin) wrote:
> Christopher Faylor wrote:
>> On Thu, May 31, 2007 at 04:27:00PM -0400, Larry Hall (Cygwin) wrote:
>>> Christopher Faylor wrote:
>>>> There seems to be some confusion about the CYGWIN tty setting.
>>>>
>>>> The only time it should have any effect is when there is a console involved.
>>>> In that scenario, what effectively happens is that CYGWIN opens up a pty
>>>> and pretends that the pty is a linux-like tty.
>>>>
>>>> Setting CYGWIN=tty for servers should be a no-op. Ditto, having it set
>>>> while operating under a pty or if there is no console associated with the
>>>> session.
>>>>
>>>> So, if setting CYGWIN=tty actually causes a problem in an ssh session
>>>> then that is probably a Cygwin bug. Until that problem has become evident
>>>> lets not assume that there is a problem.
>>>>
>>>> I don't mean to be picking on you Larry. You are not the only person
>>>> I've seen opine about CYGWIN=tty . I remain unconvinced that setting it
>>>> would present a problem other than the standard problem of running pure
>>>> Windows programs under a Cygwin pty.
>>> The confusion may come from me. ;-)
>>>
>>> So are you saying that all Cygwin services effectively use ptys?
>>>
>>> Rereading the original post, I note that KenLee only said 'cmd' was started
>>> once in the OpenSSH session. I also assumed he invoked 'ssh' from a
>>> console, which may make a difference if the answer to the above question
>>> is "no". But that assumption is unsubstantiated by the available
>>> information. ;-)
>> If he ssh'ed to somewhere interactively then there is a pty involved on
>> the remote end where the program was being run so that's what would have
>> caused any problem, IMO, regardless of the CYGWIN tty setting on the
>> local end. In that scenario, since ssh is a cygwin program it shouldn't
>> care about the CYGWIN=tty setting one way or the other.
>
>
> Understood. Thanks.
>
>
ok. can you run this command successfully from the ACCTUAL machine? i
mean, without ssh or something - like over VNC?
if it dosnt work when you have the native machine running it from a more
local (more local meaning not over SSH, but with some means of actually
controlling the machine)
If at all else, run it on a clone machine with a real kb and mouse.
PS: are you SURE you want to use "cmd" and not the native VBScript system?
- --
Just a Thought
Morgan Gangwere
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