trying to secure xdmcp over ssh - macbook pro <---> linux

I would like to use my macbook pro to connect to a Linux server over my LAN via Xdmcp. It's a simple matter of a single command on the Mac from a terminal:

Code:

$ Xnest -query 192.168.10.10 -geometry 1270x750 :1

A few seconds later, gdm opens up in the X11 window on the Mac and everything works but this option is not secured. I found several articles suggesting that one can use ssh to secure the connection but I hit a wall getting it to work on the Macbook pro.

On the Mac:

Code:

$ ssh -X username@192.168.10.10 -n Xnest -query localhost -geometry 1250x750 :1
username@192.168.10.10 password:
(EE) AIGLX error: dlopen of /usr/lib/xorg/modules/dri/swrast_dri.so failed (/usr/lib/xorg/modules/dri/swrast_dri.so: cannot open shared object file: No such file or directory)
(EE) GLX: could not load software renderer
[dix] Could not init font path element /usr/share/fonts/OTF/, removing from list!
Couldn't get keyboard.

Fatal server error:
XDMCP fatal error: Manager unwilling Host unwilling

Suggestions are welcomed

 

Good suggestion, thank you. For others with this problem (and a solution) please follow this thread on the x11-users list.