1 <?xml version="1.0" encoding="UTF-8"?>
2 <refentry id="KeyFile5">
4 <refentrytitle>KeyFile</refentrytitle>
5 <manvolnum>5</manvolnum>
8 <refname>KeyFile</refname>
9 <refpurpose>Defines AFS server encryption keys</refpurpose>
12 <title>Description</title>
13 <para>The <replaceable>KeyFile</replaceable> file defines the server encryption keys that the AFS server
14 processes running on the machine use to decrypt the tickets presented by
15 clients during the mutual authentication process. AFS server processes
16 perform privileged actions only for clients that possess a ticket
17 encrypted with one of the keys from the file. The file must reside in the
18 <replaceable>/usr/afs/etc</replaceable> directory on every server machine. For more detailed
19 information on mutual authentication and server encryption keys, see the
20 <emphasis>IBM AFS Administration Guide</emphasis>.</para>
22 <para>Each key has a corresponding a key version number that distinguishes it
23 from the other keys. The tickets that clients present are also marked with
24 a key version number to tell the server process which key to use to
25 decrypt it. The <replaceable>KeyFile</replaceable> file must always include a key with the same
26 key version number and contents as the key currently listed for the <computeroutput>afs</computeroutput>
27 entry in the Authentication Database.</para>
29 <para>The <replaceable>KeyFile</replaceable> file is in binary format, so always use the appropriate
30 commands from the <emphasis role="bold">bos</emphasis> command suite to administer it:</para>
34 <para>The <emphasis role="bold">bos addkey</emphasis> command to define a new key.</para>
38 <para>The <emphasis role="bold">bos listkeys</emphasis> command to display the keys.</para>
42 <para>The <emphasis role="bold">bos removekey</emphasis> command to remove a key from the file.</para>
46 <para>In cells that use the Update Server to distribute the contents of the
47 <replaceable>/usr/afs/etc</replaceable> directory, it is customary to edit only the copy of the
48 file stored on the system control machine. Otherwise, edit the file on
49 each server machine individually.</para>
53 <title>See Also</title>
54 <para><link linkend="bos_addkey8">bos_addkey(8)</link>,
55 <link linkend="bos_listkeys8">bos_listkeys(8)</link>,
56 <link linkend="bos_removekey8">bos_removekey(8)</link>,
57 <link linkend="kas_setpassword8">kas_setpassword(8)</link>,
58 <link linkend="upclient8">upclient(8)</link>,
59 <link linkend="upserver8">upserver(8)</link></para>
61 <para><emphasis>IBM AFS Administration Guide</emphasis></para>
65 <title>Copyright</title>
66 <para>IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.</para>
68 <para>This documentation is covered by the IBM Public License Version 1.0. It was
69 converted from HTML to POD by software written by Chas Williams and Russ
70 Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.</para>