Re: ssh -X Protocol 2 fails to pass Ctrl-C

[Igor Pechtchanski <pechtcha at cs dot nyu dot edu>]

On Wed, 31 Jul 2002, Kristopher R. Buschelman wrote:

> When I use X11 forwarding and ssh to a linux machine under protocol 2,
> Ctrl-C is not properly passed through to the remote machine, and my ssh
> session is terminated.  The error message is:
>     Killed by signal 2.
>
> I believe I have a current cygwin installation (cygwin dll: 1.3.12-2), and
> have the following ssh/ssl version:
> >ssh -V
> OpenSSH_3.4p1, SSH protocols 1.5/2.0, OpenSSL 0x0090605f
>
> If I do not forward X11 packets the problem does not occur.  Also, if I
> connect to a linux machine that does not require protocol 2, the problem
> does not occur.
>
> I am more than happy to provide any other additional information you need to
> help track down this problem further, just give me very specific
> instructions as to how to collect that info for you.
>
>     Kristopher Buschelman

I'm not able to reproduce this problem.  I use cygwin 1.3.12-2 on Win2k,
`ssh -V`="OpenSSH_3.4p1, SSH protocols 1.5/2.0, OpenSSL 0x0090604f".  I
tried to connect to a RedHat Linux 7.3, `uname -a`="Linux
floodgate.internal.net 2.4.18-3 #1 Thu Apr 18 07:31:07 EDT 2002 i586
unknown" using "ssh -2 -X floodgate.internal.net".  Ctrl-C is passed
through with no problems to the bash prompt, as well as to cat and ls.

- Which OS are you running under?
- Exactly which commands are you using to connect to the linux server?
- Does this problem occur when connecting to other (linux and non-linux)
  servers?
- In what situation did Ctrl-C terminate your session?
- Are you using authorized_keys, or some such mechanism?
- Is your X server started at the time when this problem occurs?
- What do you use to run ssh (i.e., command prompt, bash window, rxvt,
  xterm, other)?
- Does it occur when connecting to the cygwin sshd on localhost (ok, ok,
  maybe that last one's too much to ask unless you're already running
  sshd).
	Igor
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