this is obsolete doc -- see http://doc.nethence.com/ instead

SSH cluster 

http://pbraun.nethence.com/doc/security/sshd.html 

http://pbraun.nethence.com/doc/security/sshd_windows.html 

http://pbraun.nethence.com/doc/security/ssh_cluster.html 

http://pbraun.nethence.com/doc/security/ssh_tunneling.html 

http://pbraun.nethence.com/doc/net/ftpinstallsrv.html 

http://pbraun.nethence.com/doc/net/pxe.html 

http://pbraun.nethence.com/doc/security/ssh_cluster.html 

http://pbraun.nethence.com/doc/sysutils_linux/kickstart.html 

Create the SSH cluster configuration, 

vi cluster.conf

like, 

node1

node2

node3

Make sure those resolve, 

vi /etc/hosts

like, 

...

10.1.1.1    node1.example.net  node1

10.1.1.2    node2.example.net  node2

10.1.1.3    node3.example.net  node3

Create the SSH cluster script, 

vi sccluster.ksh

like, 

#!/bin/ksh

        for node in `sed '/^#/d' cluster.conf`; do

                print "$node: \c"

                ssh $node "$@"

                print ''

        done

make it executable, 

chmod +x sccluster.ksh

Create and populate your SSH keys, 

ssh-keygen -P''

cat ~/ssh/id_rsa.pub

copy/paste to each node, 

mkdir -p ~/.ssh

chmod 700 ~/.ssh

cat >> ~/ssh/authorized_keys2 <<EOF9

PASTE SSH PUBLIC KEY HERE

EOF9

chmod 600 ~/.ssh/authorized_keys2

Note. to make it work with SSH protocol 1 too, 

#cd ~/

#ln -s authorized_keys2 authorized_keys

Ready to go, 

./sccluster.ksh "hostname"