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[suse-security] "What manual page do you want?" message when using ssh

Dear All,
I have encountered some rather odd behaviour on our network.  I get an odd message when is execute a remote command on the node that is connected to the outside world from one of the other nodes.

On the node connected to the outside I have placed in the authorized_keys2 file the key generated on one of the other nodes on the local network.
no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty,command="echo Success" ssh-dss AA.......

when I type ssh root@hostname from one of the nodes the following lines are seen,
       What manual page do you want?
                                    Connection to hostname closed.

The first line is fine, however I do not understand what the second line is about...?  If I do the same between nodes that are not connected to the outside i just get
       Connection to hostname closed.

which is fine...

Does anyone know what might be causing this behaviour?  Has my security been compromised?

I am running SuSE 9.0 (64 bit version)

Dr. Martyn D. Wheeler
Department of Chemistry
University of Leicester
University Road
Leicester, LE1 7RH, UK.
Tel (office): +44 (0)116 252 3985
Tel (lab):    +44 (0)116 252 2115
Fax:          +44 (0)116 252 3789
Email:        martyn.wheeler@xxxxxxxx

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