Interesting Change In ssh Behavior

[Tim Daneliuk]

I just recently update one 6.2 and one 4.11 machine to the latest stable
sources and built world.  Now, for some odd reason, I cannot tunnel X
via ssh from remote clients.  Did the defaults for sshd change lately
or is there some other culprit?

I have verified that the client machine in question can tunnel X just fine
to other machines on the net.

The symptom is that when I ssh into the FBSD machines, .Xauthority does not
get created and $DISPLAY is not getting set.  The ssh client in this case
is on a SUSE Desktop 10 machine.