[X-Unix] XWindows

Eugene list-themacintoshguy at fsck.net
Tue May 24 12:21:52 PDT 2005


On Tue, May 24, 2005 at 12:22:00PM CDT, AKappyCT <akappy at canfieldtack.com> wrote:
: 
: Thanks John, your message pointed the way.
: 
: printenv DISPLAY returned:
: Powerbook: :0.0
: 
: I had been using SSH -2Xl name host
: I tried using SSH -Y and it worked like a charm
: 
: Interesting, man SSH (TIger) found no man page, man (Panther) SSH shows 
: no Y flag.
: 
: What does the Y flag do? Do you think I need to install the whole XCode 
: kit to get the rest of the man pages?

I always install the Developer Tools.

Anyways, I see the man page for ssh(1) without problems, and yes it does
list the -Y flag:

>     -X      Enables X11 forwarding.  This can also be specified on a per-host
>             basis in a configuration file.
>
>             X11 forwarding should be enabled with caution.  Users with the
>             ability to bypass file permissions on the remote host (for the
>             user's X authorization database) can access the local X11 display
>             through the forwarded connection.  An attacker may then be able
>             to perform activities such as keystroke monitoring.
>
>     -x      Disables X11 forwarding.
>
>     -Y      Enables trusted X11 forwarding.


-- 
Eugene
http://www.coxar.pwp.blueyonder.co.uk/


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