Prevent some port forwarding

From: doff (lefevred.antispoum_at_free.fr)
Date: 06/02/04 

Date: Wed, 2 Jun 2004 10:32:41 +0200

Hello,

is there a way in openssh, to tell sshd to accept port forwarding, only
for one or two ports and reject others ?

I mean, a ssh client wants to redirect remote ports (for exemple 25) to
its local machine and he's got the right to do it.
No, on the server, I don't want him to redirect the port 23 to its local
machine, event if its ssh client request this.

Is it possible to do that ? and how ? in the sshd_config file ?

Rq : I can not setup an ip filter on the server.

Thanks,
Doff

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