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54 lines
2.5 KiB
XML
54 lines
2.5 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<refentry id="kaserver_DB05">
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<refmeta>
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<refentrytitle>kaserver.DB0, kaserver.DBSYS1</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>kaserver.DB0, kaserver.DBSYS1</refname>
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<refpurpose>The Authentication Database and associated log</refpurpose>
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</refnamediv>
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<refsect1>
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<title>Description</title>
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<para>The <replaceable>kaserver.DB0</replaceable> file contains the Authentication Database, which
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records server encryption keys and an encrypted form of all user
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passwords. The Authentication Server (<emphasis role="bold">kaserver</emphasis> process) uses the
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information in the database to enable secured communications between AFS
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server and client processes.</para>
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<para>The <replaceable>kaserver.DBSYS1</replaceable> file is a log file in which the Authentication
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Server logs each database operation before performing it. When an
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operation is interrupted, the Authentication Server replays the log to
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complete the operation.</para>
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<para>Both files are in binary format and reside in the <replaceable>/usr/afs/db</replaceable> directory
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on each of the cell's database server machines. When the Authentication
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Server starts or restarts on a given machine, it establishes a connection
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with its peers and verifies that its copy of the database matches the copy
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on the other database server machines. If not, the Authentication Servers
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call on AFS's distributed database technology, Ubik, to distribute to all
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of the machines the copy of the database with the highest version number.</para>
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<para>Always use the commands in the kas suite to administer the Authentication
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Database. It is advisable to create an archive copy of the database on a
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regular basis, using a tool such as the UNIX <emphasis role="bold">tar</emphasis> command.</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<para><link linkend="kadb_check8">kadb_check(8)</link>,
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<link linkend="kas8">kas(8)</link>,
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<link linkend="kaserver8">kaserver(8)</link></para>
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</refsect1>
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<refsect1>
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<title>Copyright</title>
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<para>IBM Corporation 2000. <http://www.ibm.com/> All Rights Reserved.</para>
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<para>This documentation is covered by the IBM Public License Version 1.0. It was
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converted from HTML to POD by software written by Chas Williams and Russ
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Allbery, based on work by Alf Wachsmann and Elizabeth Cassell.</para>
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</refsect1>
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</refentry>
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