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3015ef6c59
Clearly prefer asetkey to bos addkey in the KeyFile, bos addkey, and bos listkeys man pages. Reference asetkey list and asetkey delete as alternatives to bos listkeys and bos removekey. Distinguish between Authentication Server cells and Kerberos v5 cells and mention the preferred afs/<cell> principal format. Add some cautions around matching enctypes and salts when synchronizing keys with a v5 KDC. Update man-pages/README for completion of this task, clean up some other wording, and remove some other now-irrelevant information. Change-Id: I29b83a61cbdb08de508bdb313524a307e385044b Reviewed-on: http://gerrit.openafs.org/1938 Reviewed-by: Jeffrey Altman <jaltman@openafs.org> Reviewed-by: Andrew Deason <adeason@sinenomine.net> Tested-by: Russ Allbery <rra@stanford.edu> Reviewed-by: Russ Allbery <rra@stanford.edu>
160 lines
5.4 KiB
Plaintext
160 lines
5.4 KiB
Plaintext
=head1 NAME
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bos_addkey - Adds a new server encryption key to the KeyFile file
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=head1 SYNOPSIS
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=for html
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<div class="synopsis">
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B<bos addkey> S<<< B<-server> <I<machine name>> >>> S<<< [B<-key> <I<key>>] >>>
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S<<< B<-kvno> <I<key version number>> >>> S<<< [B<-cell> <I<cell name>>] >>>
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[B<-noauth>] [B<-localauth>] [B<-help>]
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B<bos addk> S<<< B<-s> <I<machine name>> >>> S<<< [B<-ke> <I<key>>] >>>
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S<<< B<-kv> <I<key version number>> >>> S<<< [B<-ce> <I<cell name>>] >>> [B<-n>]
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[B<-l>] [B<-h>]
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=for html
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</div>
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=head1 DESCRIPTION
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The B<bos addkey> command constructs a server encryption key from the text
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string provided, assigns it the key version number specified with the
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B<-kvno> argument, and adds it to the F</usr/afs/etc/KeyFile> file on the
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machine specified with the B<-server> argument.
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Normally, B<asetkey add> should be used instead of this command; see
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L<asetkey(8)> for more details. The primary use of B<bos addkey> is for
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cells that are still using the Authentication Server instead of a Kerberos
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v5 KDC. It may, however, also be useful in unusual circumstances where a
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key needs to be added based on a known password rather than via a Kerberos
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v5 keytab.
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When using B<bos addkey> with an AFS cell that uses the Authentication
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Server, be sure to use the B<kas setpassword> or B<kas setkey> command to
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add the same key to the C<afs> entry in the Authentication Database.
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Do not use the B<-key> argument, which echoes the password string visibly
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on the screen. If the argument is omitted, the BOS Server prompts for the
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string and does not echo it visibly:
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Input key:
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Retype input key:
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The BOS Server prohibits reuse of any key version number already listed in
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the F</usr/afs/etc/KeyFile> file. This ensures that users who still have
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tickets sealed with the current key are not prevented from communicating
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with a server process because the current key is overwritten with a new
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key. Use the B<bos listkeys> command to display the key version numbers in
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the F</usr/afs/etc/KeyFile> file.
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=head1 CAUTIONS
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In the unusual case of using B<bos addkey> to add a key with a known
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password matching a password used to generate Kerberos v5 keys, the key in
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the Kerberos v5 KDC database must have only the DES encryption type and
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must use C<afs3> salt, not the default Kerberos v5 salt. Otherwise, the
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key generated by B<bos addkey> will not match the key generated by the
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Kerberos v5 KDC.
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=head1 OPTIONS
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=over 4
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=item B<-server> <I<machine name>>
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Indicates the server machine on which to change the
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F</usr/afs/etc/KeyFile> file. Identify the machine by IP address or its
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host name (either fully-qualified or abbreviated unambiguously). For
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details, see L<bos(8)>.
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In cells that use the Update Server to distribute the contents of the
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F</usr/afs/etc> directory, it is conventional to specify only the system
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control machine as a value for the B<-server> argument. Otherwise, repeat
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the command for each file server machine. For further discussion, see
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L<bos(8)>.
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=item B<-key> <I<key>>
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Specifies a character string just like a password; the BOS Server calls a
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DES conversion function to encode it into a form appropriate for use as an
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encryption key. Omit this argument to have the BOS Server prompt for the
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string instead.
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=item B<-kvno> <I<key version number>>
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Defines the new key's key version number. It must be an integer in the
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range from C<0> (zero) through C<255>. For the sake of simplicity, use
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the number one higher than the current highest key version number; use the
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B<bos listkeys> command to display key version numbers.
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=item B<-cell> <I<cell name>>
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Names the cell in which to run the command. Do not combine this argument
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with the B<-localauth> flag. For more details, see L<bos(8)>.
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=item B<-noauth>
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Assigns the unprivileged identity C<anonymous> to the issuer. Do not combine
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this flag with the B<-localauth> flag. For more details, see L<bos(8)>.
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=item B<-localauth>
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Constructs a server ticket using a key from the local
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F</usr/afs/etc/KeyFile> file. The B<bos> command interpreter presents the
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ticket to the BOS Server during mutual authentication. Do not combine this
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flag with the B<-cell> or B<-noauth> options. For more details, see
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L<bos(8)>.
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=item B<-help>
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Prints the online help for this command. All other valid options are
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ignored.
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=back
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=head1 OUTPUT
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If the strings typed at the C<Input key> and C<Retype input key> prompts
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do not match, the following message appears, and the command exits without
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adding a new key:
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Input key mismatch
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=head1 EXAMPLES
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The following command adds a new server encryption key with key version
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number 14 to the B<KeyFile> file kept on the machine C<fs1.abc.com> (the
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system control machine). The issuer omits the B<-key> argument, as
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recommended, and provides the password at the prompts.
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% bos addkey -server fs1.abc.com -kvno 14
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Input key:
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Retype input key:
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=head1 PRIVILEGE REQUIRED
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The issuer must be listed in the F</usr/afs/etc/UserList> file on the
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machine named by the B<-server> argument, or must be logged onto a server
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machine as the local superuser C<root> if the B<-localauth> flag is
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included.
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=head1 SEE ALSO
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L<KeyFile(5)>,
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L<UserList(5)>,
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L<asetkey(8)>,
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L<bos(8)>,
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L<bos_listkeys(8)>,
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L<bos_removekey(8)>
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=head1 COPYRIGHT
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IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.
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This documentation is covered by the IBM Public License Version 1.0. It
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was converted from HTML to POD by software written by Chas Williams and
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Russ Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.
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