124 lines
6.7 KiB
HTML
124 lines
6.7 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 name="Robots" content="index,follow" />
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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="Restricted characters for passwords" />
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<meta name="abstract" content="This system value limits the use of certain characters in a password." />
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<meta name="description" content="This system value limits the use of certain characters in a 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="qpwdlmtchr" />
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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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<!-- US Government Users Restricted Rights -->
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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>Restricted characters for passwords</title>
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</head>
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<body id="qpwdlmtchr"><a name="qpwdlmtchr"><!-- --></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">Restricted characters for passwords</h1>
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<div><p>This system value limits the use of certain characters in a password.</p>
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<p>The valid characters are A through Z, 0 through 9, and special characters
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number (#), dollar ($), at (@), and underscore (_). This value provides additional
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security by preventing users from using specific characters, such as vowels,
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in a password. Restricting vowels prevents users from forming actual words
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for their passwords.</p>
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<p>See <a href="#qpwdlmtchr__quickref">Quick reference</a> table
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for an overview of the restrict character for passwords system 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 restrict character for
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passwords system value</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 ">None</td>
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<td valign="top" headers="d0e33 ">*NONE</td>
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<td valign="top" headers="d0e35 ">There are no restricted characters for passwords.</td>
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</tr>
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<tr><td valign="top" headers="d0e29 ">Restricted characters</td>
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<td valign="top" headers="d0e33 "><em>restricted-characters</em></td>
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<td valign="top" headers="d0e35 ">Specify up to 10 restricted characters. The valid characters
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are A through Z, 0 through 9, and special characters pound (#), dollar ($),
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at (@), and underscore (_).</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 which characters are restricted. This system value works with
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other system values that specify the composition of individual passwords.</p>
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<div class="p">
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<div class="tablenoborder"><a name="qpwdlmtchr__quickref"><!-- --></a><table cellpadding="4" cellspacing="0" summary="" id="qpwdlmtchr__quickref" frame="border" border="1" rules="all"><caption>Table 2. Quick Reference. Provides
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details for the restricted character for passwords system value.</caption><thead align="left"><tr valign="bottom"><th valign="bottom" id="d0e71">iSeries Navigator name</th>
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<th valign="bottom" id="d0e75">Restricted characters</th>
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</tr>
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</thead>
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<tbody><tr><td valign="top" headers="d0e71 ">Character-based interface name</td>
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<td valign="top" headers="d0e75 ">QPWDLMTCHR</td>
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</tr>
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<tr><td valign="top" headers="d0e71 ">Authority</td>
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<td valign="top" headers="d0e75 "><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="d0e71 ">How to access</td>
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<td valign="top" headers="d0e75 "><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 for restricted
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character.</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 QPWDLMTCHR</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="d0e71 ">Changes take effect</td>
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<td valign="top" headers="d0e75 ">Immediately</td>
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</tr>
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<tr><td valign="top" headers="d0e71 ">Default value</td>
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<td valign="top" headers="d0e75 ">None</td>
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</tr>
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<tr><td valign="top" headers="d0e71 ">Recommended value</td>
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<td valign="top" headers="d0e75 ">A, E, I, O, and U. You may also want to restrict special
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characters (#, $, and @) for compatibility with other systems.</td>
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</tr>
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<tr><td valign="top" headers="d0e71 "><a href="rzamvlockdown.htm">Lockable</a></td>
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<td valign="top" headers="d0e75 ">Yes</td>
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</tr>
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<tr><td valign="top" headers="d0e71 ">Special considerations </td>
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<td valign="top" headers="d0e75 ">This system value can only be used for password levels
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0 or 1. If you change this value and your password level is either 2 or 3,
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then the system will ignore the restricted character setting.</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,
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"Security System Values" 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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