On 12/16/2015 05:29 AM, Kent West wrote:
If I try to connect to my Debian box at work, using either my Mac's OS X
or my Mac's Debian VM, I can connect successfully, but then immediately
the connection is closed:
Kents-MacBook-Pro:~ westk$ ssh -Y we...@westek.acu.edu
we...@westek.acu.edu's password:
Connection to westek.acu.edu closed by remote host.
Connection to westek.acu.edu closed.
Kents-MacBook-Pro:~ westk$
I can ssh to a different Debian box on my work network, and then do an
ssh hop from there to my work box.
Also, if I start up the Virtual Private Network (VPN) client first, so
that I'm essentially on my work network rather than on my home network,
I get connected successfully.
So apparently something about my Debian box at work doesn't like
incoming ssh sessions from non-work networks. However, I can find
nothing to configure that.
Which version of Debian?
The following ideas are for Jessie.
'man ssh' tells me:
-v Verbose mode. Causes ssh to print debugging messages
about its progress. This is helpful in debugging connec-
tion, authentication, and configuration problems. Multi-
ple -v options increase the verbosity. The maximum is 3.
Add the -v option, one or more times, and see what happens.
On the destination computer, take a look at the files in /var/log
(notably auth.log and syslog).
David