Utter silence!
socnt01:~ # ssh [EMAIL PROTECTED] 'missing-rsync 2>&1' socnt01:~ # ssh [EMAIL PROTECTED] 'echo testing >&2' socnt01:~ #
The key in authorized_keys is completely vanilla, as generated by ssh-keygen. Here's the last few characters:
HDX9YgmYKiYyOvQMDKpeJXs= [EMAIL PROTECTED]
Weird!
If I try the same but with a machine which does not have the local machine in its authorized-keys, ssh is forced to ask for a password, and under these circumstances, the error message is returned (socnt02 is another SuSE Linux host):
socnt01:~ # ssh [EMAIL PROTECTED] 'missing-rsync 2>&1' Password: bash: missing-rsync: command not found socnt01:~ #
So I then moved root's authorized_keys on sandi elsewhere, to force sandi to ask for a password, and got no error message:
socnt01:~ # ssh [EMAIL PROTECTED] 'missing-rsync 2>&1' [EMAIL PROTECTED]'s password: socnt01:~ #
which would seem to implicate Sun's ssh.
Nigel
On 13 Jan 2005, at 20:49, Wayne Davison wrote:
On Thu, Jan 13, 2005 at 08:17:42PM +0000, Nigel Gilbert wrote:Interestingly, when I use ssh to execute a non-existent command on the remote machine, no error message is returned
Fascinating. Perhaps your ssh isn't returning the stderr output? Try these commands:
ssh [EMAIL PROTECTED] 'missing-rsync 2>&1' ssh [EMAIL PROTECTED] 'echo testing >&2'
I see both the not-found error on stdout (from the first command) and the word "testing" on stderr (from the second command). If you see no error for the first command, then it looks like your /bin/sh is not generating an error for the remote-command failure. If you see the output from the first command but not the second, I'd suspect the ability of Sun's ssh to send back the stderr output of the process.
You should also check for things that might affect the running of remote commands, such as filter scripts run from .ssh/authorized_keys. (If not written correctly, they might interfere with the stderr output.)
..wayne..
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