[cs615asa] HW1(Message: bochs: cannot connect to X server)

[Shashwath Veerappa Devaru]

Professor now am facing another problem as seen below when i try to ssh with
X forwarding

sveerapp at mechagodzilla:~$ ssh -X linux-lab.cs.stevens-tech.edu
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@       WARNING: POSSIBLE DNS SPOOFING DETECTED!          @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
The RSA host key for linux-lab.cs.stevens-tech.edu has changed,
and the key for the according IP address 155.246.89.34
is unknown. This could either mean that
DNS SPOOFING is happening or the IP address for the host
and its host key have changed at the same time.
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that the RSA host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
18:14:af:55:11:6e:af:3c:a2:b8:6d:cd:30:6e:85:3a.
Please contact your system administrator.
Add correct host key in /home/sveerapp/.ssh/known_hosts to get rid of this
message.
Offending key in /home/sveerapp/.ssh/known_hosts:5
RSA host key for linux-lab.cs.stevens-tech.edu has changed and you have
requested strict checking.
Host key verification failed.


I tried on separate hosts but with no luck. Using -Y option also gives the
same message as above. No am not able to run xterm either, while i try to
run I get the following error

sveerapp at neo:~$ xterm
xterm Xt error: Can't open display:
xterm:  DISPLAY is not set

Kindly Help.

Thank you,
Shashwath

On Wed, Feb 18, 2009 at 10:44 PM, Jan Schaumann <jschauma at cs.stevens.edu>wrote:

> Shashwath Veerappa Devaru <sveerapp at stevens.edu> wrote:
>
>
> > I did ssh to linux-lab.cs.stevens-tech.edu with X forwarding enabled
> using
> > the command "ssh -X linux-lab.cs.stevens-tech.edu " .
>
> That ought to work.  Is this only happening on a specific host or on all
> hosts that linux-lab.cs.stevens-tech.edu maps do?
>
> Can you run other applications, such as xterm?
>
> Have you tried using '-Y' instead of '-X'?
>
> -Jan
>
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