head node and compute nodes

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To: secureshell@xxxxxxxxxxxxxxxxx
Subject: head node and compute nodes
From: "Albino A. Aveleda" <bino@xxxxxxxxxxx>
Date: Tue, 13 Jul 2010 08:38:32 -0300 (BRT)
In-reply-to: <1598484352.55557.1279020770857.JavaMail.root@xxxxxxxxxxxxxxxxxxxx>

Hi All,

I have a cluster with an head node and some compute nodes. 

My O.S. is SLES11 and I use the SSH shown below.
bino@service0:~> ssh -V
OpenSSH_5.1p1, OpenSSL 0.9.8h 28 May 2008

I would like to know how to configure the sshd on compute 
nodes to permit all connection from any compute nodes but
connection from head node only from root.

Best regards,
Bino

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