openafs/doc/man-pages/pod5/KeyFile.pod

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=head1 NAME
KeyFile - Defines AFS server encryption keys
=head1 DESCRIPTION
The F<KeyFile> file defines the server encryption keys that the AFS server
processes running on the machine use to decrypt the tickets presented by
clients during the mutual authentication process. AFS server processes
perform privileged actions only for clients that possess a ticket
encrypted with one of the keys from the file. The file must reside in the
F</usr/afs/etc> directory on every server machine. For more detailed
information on mutual authentication and server encryption keys, see the
I<IBM AFS Administration Guide>.
Each key has a corresponding a key version number that distinguishes it
from the other keys. The tickets that clients present are also marked with
a key version number to tell the server process which key to use to
decrypt it. The F<KeyFile> file must always include a key with the same
key version number and contents as the key currently listed for the C<afs>
entry in the Authentication Database.
The F<KeyFile> file is in binary format, so always use the appropriate
commands from the B<bos> command suite to administer it:
=over 4
=item *
The B<bos addkey> command to define a new key.
=item *
The B<bos listkeys> command to display the keys.
=item *
The B<bos removekey> command to remove a key from the file.
=back
In cells that use the Update Server to distribute the contents of the
F</usr/afs/etc> directory, it is customary to edit only the copy of the
file stored on the system control machine. Otherwise, edit the file on
each server machine individually.
=head1 SEE ALSO
L<bos_addkey(8)>,
L<bos_listkeys(8)>,
L<bos_removekey(8)>,
L<kas_setpassword(8)>,
L<upclient(8)>,
L<upserver(8)>
I<IBM AFS Administration Guide>
=head1 COPYRIGHT
IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
This documentation is covered by the IBM Public License Version 1.0. It was
converted from HTML to POD by software written by Chas Williams and Russ
Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.