how to set permissions for untrusted clients?

[Lasse Kliemann]

As per changelog entries for xserver, the old 'SecurityPolicy'
system is no more, and in fact the '-sp' switch is gone. Behavior 
of untrusted clients is different in 7.4 compared to how it used 
to be in 7.1 (with 'SecurityPolicy' still in place). Most 
notably, trusted clients can paste text into untrusted clients 
(or untrusted clients are allowed to read the cut buffer - don't 
know which of the two perspectives is closer to the truth), and 
untrusted clients otherwise seem to have much fewer privileges 
than before. For instance, an untrusted xterm isn't even allowed 
to ring the bell (when doing auto-completion, for instance); it 
will be terminated upon trying so. It will also be terminated if 
the user selects some text in it. This makes untrusted xterms 
essentially useless, and I suspect many more problems along these 
lines.

There must be some way to configure these things, but I could not 
find it. Maybe someone can give me a hint.

Thank you!

Lasse

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