Ethical Hacking

Learn to find vulnerabilities before the bad guys do! Gain real world hands on hacking experience in our state of the art hacking lab. Course designed and taught by expert instructors with years of penetration testing experience. 12 student maximum in every class. Certification attempt included in every package.
Computer Forensics Training at InfoSec Institute

Gain the in-demand skills of a certified computer examiner, learn to recover trace data left behind by fraud, theft, and cybercrime perpetrators. Discover the source of computer crime and abuse at your organization so that it never happens again. All of our class sizes are guaranteed to be 12 students or less to facilitate one-on-one interaction with one of our expert instructors.




Network Security Secure-Shell
[Top] [All Lists]

strange Display management

Subject: strange Display management
Date: Thu, 24 Nov 2005 16:17:35 +0100

Hello,

Here is my test stuff (before installing) :

SSHSRV : ssh server
run ssd on port 222
openssh.cnf :
...
X11Forwarding yes
X11DisplayOffset 10
X11UseLocalhost yes
...

CLIENT-1 :
~/.ssh/config :
ForwardX11 yes

CLIENT-2 :
~/.ssh/config :
ForwardX11 yes

CLIENT 1 and 2 connect fine to SSHSRV : ssh -p 222 SSHSRV
On CLIENT-1 : export DISPLAY=localhost:10 then run xterm, appeard on CLIENT-1 : OK


On CLIENT 2 : export DISPLAY=localhost:10 then run xterm, , appears on CLIENT-1 : ERK !!
I wanted CLIENT-2 xterm to be displayed on CLIENT-1 ...



Note 1 :when I comment out "X11UseLocalhost yes" in SSHSRV config file; I can't manage to get xterm displayed on CLIENT-1 or 2.
Note 2 : the DISPLAY is automatically set to a strange value (19216876:0.0), looks like a part of IP address (client or server, don't know). This default DISPLAY dosen't permit wterm display on CLIENT-1 nor CLIENT-2.
Note 3 : The login on SSHSRV is the same from CLIENT-1 and CLIENT-2.


I think (and hope) it's a config problem, cause I really need to forward many X11 users throught SSH. Each one using it's own CLIENT.

Landry.




-- ############################################################ BRUNEL Landry

Email: landry.brunel@shom.fr
Tel : (33) 05 61 43 35 04       
Fax : (33) 05 62 14 06 10
############################################################


<Prev in Thread] Current Thread [Next in Thread>
  • strange Display management, Landry Brunel <=