ssh keygen in unix server

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LEARN ABOUT DEBIAN

corosync-keygen

COROSYNC-KEYGEN(8)					      System Manager's Manual						COROSYNC-KEYGEN(8)

NAME

       corosync-keygen - Generate an authentication key for Corosync.

SYNOPSIS

       corosync-keygen

DESCRIPTION

       If you want to configure corosync to use cryptographic techniques to ensure authenticity
       and privacy of the messages, you will need to generate a private key.

       corosync-keygen creates this key and writes it to /etc/corosync/authkey.

       This private key must be copied to every processor in the cluster.  If the
       private key isn't the same for every node, those nodes with nonmatching private
       keys will not be able to join the same configuration.

       Copy the key to some security transportable storage or use ssh to transmit the
       key from node to node.  Then install the key with the command:

       unix#: install -D --group=0 --owner=0 --mode=0400 /path_to_authkey/authkey /etc/corosync/authkey

       If a message "Invalid digest" appears from the corosync executive, the keys
       are not consistent between processors.

       Note: corosync-keygen will ask for user input to assist in generating entropy.

EXAMPLES

       Generate the key.

       $ corosync-keygen
       Corosync Cluster Engine Authentication key generator.
       Gathering 1024 bits for key from /dev/random.
       Press keys on your keyboard to generate entropy.

SEE ALSO

       corosync_overview(8), corosync.conf(5),

AUTHOR

       Angus Salkeld

								    2010-05-30							COROSYNC-KEYGEN(8)

Shell Programming and Scripting