corosync-keygen(8) - Generate an authentication key for Corosync.

amurleopard

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

NAME
       corosync-keygen - Generate an authentication key for Corosync.

SYNOPSIS
       corosync-keygen [-k <filename>] [-l]

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

       corosync-keygen creates this key and writes it to /etc/corosync/authkey
       or to file specified by -k option.

       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 non‐
       matching 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 com‐
       mand:

       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 unless the -l option is used.

OPTIONS
       -k <filename>
	      This  specifies  the  fully  qualified path to the shared key to
	      create.
	      The default is /etc/corosync/authkey.

       -l     Use a less secure random data source that will not require  user
	      input  to  help  generate entropy.  This may be useful when this
	      utility is used from a script or hardware random number  genera‐
	      tor is not available (f.e. in virtual machine).

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.

       $ corosync-keygen -l -k /tmp/authkey
       Corosync Cluster Engine Authentication key generator.
       Writing corosync key to /tmp/authkey.

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

AUTHOR
       Angus Salkeld

				  2010-05-30		    COROSYNC-KEYGEN(8)