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<h2 class="wimscenter">Access restriction definition</h2>
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<p class="wimscenter">Access restriction definition</p>
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<p>
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<p>
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This is multi-line data, executed line by line in their list orders. The
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This is multi-line data, executed line by line in their list orders. The
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restrictions only affect resource modules, but not administration modules.
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restrictions only affect resource modules, but not administration modules.
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Lines starting with a `<span class="tt">#</span>' are comments.
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Lines starting with a `<span class="tt wims_code_words">#</span>' are comments.
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</p><p>
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</p><p>
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Each line is of the format <span class="tt">[access conditions]:[host conditions]</span>.
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Each line is of the format <span class="tt wims_code_words">access conditions:host/time conditions</span>.
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</p><p>
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</p><p>
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The access conditions is a list of words, which will be ANDed. The available
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The access conditions is a list of words, which will be ANDed. The available
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words are listed in the following table. Each word can be prefixed with
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words are listed in the following table. Each word can be prefixed with
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<span class="tt wims_code_words">non</span> to reverse its logical meaning.
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<span class="tt wims_code_words">non</span> to reverse its logical meaning.
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</p>
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</p>
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$table_header
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$table_header
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$table_tr<th>word</th><th>meaning</th></tr>
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$table_tr<th>word</th><th>meaning</th></tr>
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$table_tr<td class="tt wims_code_words">class</td><td>The connection is within a virtual class.</td></tr>
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$table_tr<td class="tt wims_code_words">class</td><td>The connection is within a virtual class.</td></tr>
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$table_tr<td class="tt wims_code_words">com</td><td>The requested module is under the com/ subtree.</td></tr>
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$table_tr<td class="tt wims_code_words">com</td><td>The requested module is under the com/ subtree.</td></tr>
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$table_tr<td class="tt wims_code_words">document</td><td>The requested module is a document. (not yet available)</td></tr>
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$table_tr<td class="tt wims_code_words">document</td><td>The requested module is a document.</td></tr>
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$table_tr<td class="tt wims_code_words">exercise</td><td>The requested module is an exercise.</td></tr>
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$table_tr<td class="tt wims_code_words">exercise</td><td>The requested module is an exercise.</td></tr>
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$table_tr<td class="tt wims_code_words">hint</td><td>The request is for hint.</td></tr>
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$table_tr<td class="tt wims_code_words">hint</td><td>The request is for hint.</td></tr>
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$table_tr<td class="tt wims_code_words">local</td><td>The requested module is under the local/ subtree.</td></tr>
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$table_tr<td class="tt wims_code_words">local</td><td>The requested module is under the local/ subtree.</td></tr>
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$table_tr<td class="tt wims_code_words">recreation</td><td>The requested module is a recreation.</td></tr>
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$table_tr<td class="tt wims_code_words">recreation</td><td>The requested module is a recreation.</td></tr>
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$table_tr<td class="tt wims_code_words">tool</td><td>The requested module is a tool.</td></tr>
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$table_tr<td class="tt wims_code_words">tool</td><td>The requested module is a tool.</td></tr>
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$table_end
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$table_end
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!set date=!char 1 to 8 of $wims_now
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!set year=!char 1 to 4 of $wims_now
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<div>
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The host conditions can be any host definition, eventually plus time
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The host/time conditions can be any host or time definition as for any worksheet.
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definition as for any worksheets. If the first character of the host
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According to the first line with host/time meeting the host/time conditions:
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conditions is <span class="tt wims_code_words">!</span>, then the host/time meeting the conditions will
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  <ul><li> If the first character of the host/time conditions is
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be refused access (for the resources meeting the access conditions).
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    <span class="tt wims_code_words">!</span>, the resources meeting the access conditions
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    will be refused access.
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  </li><li>
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Otherwise they will be granted access, and subsequent lines in the
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    Otherwise they will be granted access.
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  </li></ul>
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restriction definition will be ignored for those meeting the conditions.
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  Subsequent lines in the restriction definition will be then ignored.
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</div>
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<hr />
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<hr />
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!read help/hosts.phtml
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!read help/hosts.phtml
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<hr />
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<hr />
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Some starting examples.
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Some starting examples.
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<p>
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<div>
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# Disallow the use of tools from 134.59.102.*
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# Disallow the use of tools from 134.59.102.*
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<pre>
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<br/><span class="tt wims_code_words">tool:! 134.59.102.</span>
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<span class="tt wims_code_words">tool:! 134.59.102.</span>
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</p><p>
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</pre></div><div>
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# Disallow calls for hint from localhost.
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# Disallow calls for hint from localhost.
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<pre>
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<br /><span class="tt wims_code_words">hint:! 127.0.0.1</span>
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<span class="tt wims_code_words">hint:! 127.0.0.1</span>
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</p><p>
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</pre></div><div>
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# People from wanadoo.fr cannot have anonymous accesses for recreations.
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# People from wanadoo.fr cannot have anonymous accesses for recreations.
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<pre>
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<br/><span class="tt wims_code_words">recreation nonclass:! .wanadoo.fr</span>
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<span class="tt wims_code_words">nonclass recreation:! .wanadoo.fr</span>
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</p><p>
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</pre></div><div>
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# Work in virtual classes prohibited from localhost on New Year's Day of 2004.
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# Work in the virtual class prohibited from localhost on New Year's Day of 2004.
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<pre>
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<br/><span class="tt" class="wims_code_words">class: ! 127.0.0.1 >20040101.00:00 <20040101.23:59</span>
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<span class="tt wims_code_words">class:! 127.0.0.1 &gt;$(year)0101.00:00 &lt;$(year)0101.23:59</span>
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</pre></div><div>
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# Work in the virtual class prohibited from 10pm to 6am on the days of October.
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<pre>
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<span class="tt wims_code_words">class:! &gt;****10**.22:00 &lt;****10**.23:59</span>
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<span class="tt wims_code_words">class:! &gt;****10**.00:00 &lt;****10**.06:00</span>
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</p>
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</pre>
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</div>