Netfilter, owner match and ssh

[Kilobug]

Hello,
	I want to allow ssh access to a computer, but not for root user. I know 
there is the "AllowRootLogin" of ssh. But the main point is that
is a security flaw (like a buffer overflow) is found in ssh, this option 
can be bypassed.
	So my idea was to do:
iptables -A OUTPUT -m owner --uid-owner 0 -j DROP
	But this block all ssh, because the key exchange and password/key 
identification is done while sshd run as root. Is there a way to allow 
the first step of the ssh connection to pass, but close the connection 
after a given amount of data, or anything else?

Thank you

-- 
  ** Gael Le Mignot, Ing3 EPITA, Coder of The Kilobug Team **
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