127 lines
6.8 KiB
HTML
127 lines
6.8 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html lang="en-us" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Require different characters in each position in the password" />
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<meta name="abstract" content="This system value controls the position of each character in a new password." />
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<meta name="description" content="This system value controls the position of each character in a new password." />
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<meta name="DC.Relation" scheme="URI" content="rzamvpwdsysval.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="qpwdposdif" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Require different characters in each position in the password</title>
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</head>
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<body id="qpwdposdif"><a name="qpwdposdif"><!-- --></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">Require different characters in each position in the password</h1>
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<div><p>This system value controls the position of each character in a
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new password.</p>
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<p>Controlling the position of each character in a new password provides additional
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security by preventing users from using the same character (alphabetic or
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numeric) in a position corresponding to the same position in the previous
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password. When the password level has a value of 2 or 3, the test for the
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same character is case sensitive. This means that a lowercase ’a’ is not the
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same as an uppercase ’A’.</p>
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<p>See <a href="#qpwdposdif__quickref">Quick reference</a> table
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for an overview of the require different characters in each position system
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value.</p>
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<div class="p">
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<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><caption>Table 1. Possible values for the require different characters
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in each position in the password</caption><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e29">iSeries™ Navigator </th>
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<th valign="bottom" id="d0e33">Character-based interface</th>
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<th valign="bottom" id="d0e35">Description </th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e29 ">Deselected</td>
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<td valign="top" headers="d0e33 ">0 </td>
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<td valign="top" headers="d0e35 ">The same characters can be used in a position corresponding
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to the same position in the previous password.</td>
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</tr>
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<tr><td valign="top" headers="d0e29 ">Selected</td>
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<td valign="top" headers="d0e33 ">1 </td>
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<td valign="top" headers="d0e35 ">The same character cannot be used more than once in
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a password.</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<p><strong>Relationship to security policy</strong></p>
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<p>Within your security policy, you should describe the password rules that
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are defined by the system values-related passwords. For this system value,
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inform users on whether they can repeat the same character in the same position
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as previous passwords This system value works with other system values that
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specify the composition of individual passwords.</p>
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<div class="p">
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<div class="tablenoborder"><a name="qpwdposdif__quickref"><!-- --></a><table cellpadding="4" cellspacing="0" summary="" id="qpwdposdif__quickref" frame="border" border="1" rules="all"><caption>Table 2. Quick Reference . Provides details
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for the require different characters in each position.</caption><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e70">iSeries Navigator name</th>
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<th valign="bottom" id="d0e74">Require a new character in each position</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e70 ">Character-based interface name</td>
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<td valign="top" headers="d0e74 ">QPWDPOSDIF</td>
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</tr>
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<tr><td valign="top" headers="d0e70 ">Authority</td>
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<td valign="top" headers="d0e74 "><p>All object access (*ALLOBJ)<br />
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Security administrator (*SECADM)</p>
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<div class="note"><span class="notetitle">Note:</span> The Security Officer (QSECOFR) user profile is shipped with
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these authorities. </div>
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</td>
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</tr>
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<tr><td valign="top" headers="d0e70 ">How to access</td>
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<td valign="top" headers="d0e74 "><div class="p"><strong>iSeries Navigator</strong><ol><li>Expand <span class="menucascade"><span class="uicontrol">Security</span> > <span class="uicontrol">Policies</span></span>.</li>
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<li>Right click <strong>Password Policy</strong> and select <strong>Properties</strong>.</li>
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<li>On the <strong>Validation</strong> page, you will find the option to require a new
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character in each position.</li>
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</ol>
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</div>
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<div class="p"><strong>Character-based interface</strong><ol><li>In the character-based interface, type <samp class="codeph">WRKSYSVAL QPWDPOSDIF</samp>.</li>
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</ol>
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</div>
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</td>
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</tr>
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<tr><td valign="top" headers="d0e70 ">Changes take effect</td>
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<td valign="top" headers="d0e74 ">Immediately</td>
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</tr>
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<tr><td valign="top" headers="d0e70 ">Default value</td>
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<td valign="top" headers="d0e74 ">Deselected</td>
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</tr>
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<tr><td valign="top" headers="d0e70 ">Recommended value</td>
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<td valign="top" headers="d0e74 ">Selected</td>
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</tr>
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<tr><td valign="top" headers="d0e70 "><a href="rzamvlockdown.htm">Lockable</a></td>
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<td valign="top" headers="d0e74 ">Yes</td>
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</tr>
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<tr><td valign="top" headers="d0e70 ">Special considerations </td>
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<td valign="top" headers="d0e74 ">When the password level is 2 or 3, the test for repeated
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characters is case sensitive. This means that a lowercase character is not
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the same as an uppercase character.</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<p>For more in-depth information about this security value, see Chapter 3, <span class="q">"Security
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System Values"</span> in <a href="../books/sc415302.pdf" target="_blank">Security Reference</a>. </p>
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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="rzamvpwdsysval.htm" title="In addition to setting signon system values, you also need to decide rules regarding users passwords">Password system values</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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