127 lines
8.6 KiB
HTML
127 lines
8.6 KiB
HTML
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<meta name="DC.Title" content="Configure secondary Kerberos server" />
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<meta name="abstract" content="Configure a secondary Kerberos server to use as a backup server." />
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<meta name="description" content="Configure a secondary Kerberos server to use as a backup server." />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Configure secondary Kerberos server</title>
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</head>
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<body id="rzakhconfigbackupkdc"><a name="rzakhconfigbackupkdc"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Configure secondary Kerberos server</h1>
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<div><p>Configure a secondary Kerberos server to use as a backup server.</p>
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<div class="p">After you have configured the primary <a href="rzakhconfigpase.htm#rzakhconfigpase">Kerberos
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server in i5/OS™ PASE</a>,
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you can optionally configure a secondary Kerberos server to use as a backup
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server in case your primary Kerberos server goes down or is too busy to handle
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requests.<p>For example, you currently use iSeries™ A as your Kerberos server. Now
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you want to configure iSeries B to be your secondary (backup) Kerberos
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server.</p>
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<div class="note"><span class="notetitle">Note:</span> A Kerberos server is also known as a key distribution center
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(KDC).</div>
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<p>The following figure illustrates the iSeries servers described in the following
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instructions.<br /><img src="rzakh514.gif" alt="Configure a secondary Kerberos server" /><br /></p>
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<p><strong>Details</strong></p>
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<ul><li>The figure illustrates the servers as they appear after you have completed
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the steps for configuring a secondary Kerberos server:<ul><li>iSeries A
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acts as the primary Kerberos server configured in i5/OS PASE.</li>
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<li>iSeries B
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acts as the secondary Kerberos server configured in i5/OS PASE.</li>
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<li>iSeries C
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acts as the client enabled to use iSeries B as its Kerberos server.</li>
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</ul>
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</li>
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</ul>
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<p>To configure iSeries B to be a secondary Kerberos server in i5/OS PASE,
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follow these steps:</p>
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</div>
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<ol><li class="stepexpand"><span>Configure iSeries B as a client.</span><ol type="a"><li class="substepexpand"><span>In a character-based interface on iSeries B, type <kbd class="userinput">call QP2TERM</kbd>.</span> This command opens an interactive shell environment that allows you
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to work with i5/OS PASE
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applications.</li>
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<li class="substepexpand"><span>At the command line, enter: </span> <p><kbd class="userinput">export PATH=$PATH:/usr/krb5/sbin</kbd></p>
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<p>This
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command points to the Kerberos scripts that are necessary to run the executable
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files.</p>
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</li>
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<li class="substepexpand"><span>At the command line, enter:</span> <img src="./delta.gif" alt="Start of change" /><p><kbd class="userinput">config.krb5 -E -d rchland.ibm.com -r MYCO.COM -s lp16b1b.rchland.ibm.com</kbd></p><img src="./deltaend.gif" alt="End of change" />
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</li>
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<li class="substepexpand"><img src="./delta.gif" alt="Start of change" /><span>Enter the administrator password; for example: <kbd class="userinput">secret</kbd></span><img src="./deltaend.gif" alt="End of change" /></li>
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</ol>
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<p><img src="./delta.gif" alt="Start of change" />The <span class="cmdname">config.krb5</span> command
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configures the client, primary server, and secondary server. The <span class="parmname">-C</span> flag
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configures the client on iSeries C. The <span class="parmname">-s</span> flag configures
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the primary Kerberos server on iSeries A. The <span class="parmname">-E</span> flag
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configures the secondary Kerberos server on iSeries B.<img src="./deltaend.gif" alt="End of change" /></p>
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</li>
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<li class="stepexpand"><span>Add an i5/OS principal for iSeries A and iSeries B to the Kerberos server on iSeries A.</span><ol type="a"><li class="substepexpand"><span>In a character-based interface on iSeries A, enter <kbd class="userinput">call QP2TERM</kbd>.</span> This command opens an interactive shell environment that allows you
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to work with i5/OS PASE
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applications.</li>
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<li class="substepexpand"><span>At the command line, enter:</span> <p><kbd class="userinput">export PATH=$PATH:/usr/krb5/sbin</kbd></p>
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<p>This
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command points to the Kerberos scripts that are necessary to run the executable
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files.</p>
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</li>
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<li class="substepexpand"><span>At the command line, enter <tt>kadmin -p admin/admin</tt>.</span></li>
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<li class="substepexpand"><span>Sign in with administrator's password. For example, <tt>secret</tt>.</span></li>
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<li class="substepexpand"><span>At the command line, enter:</span> <p><tt>addprinc -randkey -clearpolicy host/iseriesa.myco.com</tt></p>
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</li>
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<li class="substepexpand"><span>At the command line, enter:</span> <p><tt>addprinc -randkey -clearpolicy host/iseriesb.myco.com</tt></p>
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</li>
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</ol>
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</li>
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<li class="stepexpand"><img src="./delta.gif" alt="Start of change" /><span>Propagate the master database from the primary Kerberos
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server to the secondary Kerberos server.</span><ol type="a"><li class="substepexpand"><span>In a character-based interface on iSeries A, enter <kbd class="userinput">call QP2TERM</kbd>.</span> This command opens an interactive shell environment that allows you
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to work with i5/OS PASE
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applications.</li>
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<li class="substepexpand"><span>At the command line, enter:</span> <p><kbd class="userinput">export PATH=$PATH:/usr/krb5/sbin</kbd></p>
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<p>This
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command points to the Kerberos scripts that are necessary to run the executable
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files.</p>
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</li>
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<li class="substepexpand"><span>At the command line, enter:</span> <p><kbd class="userinput">/usr/krb5/sbin/config.krb5 -P -r MYCO.COM -d rchland.ibm.com -e rchasrc2.rchland.ibm.com</kbd></p>
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<div class="tip"><span class="tiptitle">Tip:</span> You can cut and paste the command in the message
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on the primary Kerberos system.</div>
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<p>The <span class="parmname">-P</span> flag
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propagates the master database from the primary Kerberos server to the secondary
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Kerberos server. The <span class="parmname">-r</span> flag specifies the realm name.
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The <span class="parmname">-d</span> flag specifies the name of the DNS domain. The <span class="parmname">-e</span> flag
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specifies the host name of the secondary Kerberos server.</p>
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</li>
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</ol>
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<img src="./deltaend.gif" alt="End of change" /></li>
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<li class="stepexpand"><img src="./delta.gif" alt="Start of change" /><span>On the secondary Kerberos server, verify that the master
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database has been propagated successfully.</span><ol type="a"><li class="substepexpand"><span>On the secondary Kerberos server, answer <kbd class="userinput">Y</kbd> to
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the following prompt: <tt class="sysout">Have you successfully run the above command?</tt></span></li>
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<li class="substepexpand"><span>Enter the database master password; for example: <tt>pasepwd</tt>.</span> This command picks up the master key.</li>
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</ol>
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<img src="./deltaend.gif" alt="End of change" /></li>
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</ol>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzakhconfigpase.htm" title="Configure and manage a Kerberos server from your iSeries system to provide an integrated runtime environment for AIX applications.">Configure a Kerberos server in i5/OS PASE</a></div>
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<div class="previouslink"><strong>Previous topic:</strong> <a href="rzakhconfigwkstation.htm" title="Configure your client workstations by setting the Kerberos realm and the Kerberos server.">Configure Windows 2000 and Windows XP workstations</a></div>
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</div>
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</div>
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</body>
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</html>
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