helpful hint
If it’s a big pain when a workstation’s ssh keypair gets lost, back it up.
#!/bin/sh
HOSTNAME=`hostname`
sudo cat /etc/ssh/ssh_host_dsa_key > ws_keys/ssh_host_dsa_key.${HOSTNAME}
sudo cat /etc/ssh/ssh_host_dsa_key.pub > ws_keys/ssh_host_dsa_key.pub.${HOSTNAME}
sudo cat /etc/ssh/ssh_host_rsa_key > ws_keys/ssh_host_rsa_key.${HOSTNAME}
sudo cat /etc/ssh/ssh_host_rsa_key.pub > ws_keys/ssh_host_rsa_key.pub.${HOSTNAME}
chmod go-r ws_keys/*.${HOSTNAME}