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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en" dir="ltr"> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("http://www.mediawiki.org:80/wiki/MediaWiki","20060220142557","https://web.archive.org/","web","/_static/", "1140445557"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <meta name="keywords" content="MediaWiki,About this site,Communication,Customization,Development,Documentation,Download,How does MediaWiki work?,Installation,MediaWiki/de,MediaWiki/es"/> <link rel="shortcut icon" href="/web/20060220142557im_/http://www.mediawiki.org/favicon.ico"/> <link rel="copyright" href="https://web.archive.org/web/20060220142557/http://www.gnu.org/copyleft/fdl.html"/> <title>MediaWiki - MediaWiki</title> <style type="text/css" media="screen,projection">/*<![CDATA[*/ @import "/web/20060220142557cs_/http://www.mediawiki.org/skins-1.5/monobook/main.css?5"; /*]]>*/</style> <link rel="stylesheet" type="text/css" media="print" href="/web/20060220142557cs_/http://www.mediawiki.org/skins-1.5/common/commonPrint.css"/>      <script type="text/javascript" src="/web/20060220142557js_/http://www.mediawiki.org/w/index.php?title=-&action=raw&gen=js"></script> <script type="text/javascript" src="/web/20060220142557js_/http://www.mediawiki.org/skins-1.5/common/wikibits.js"></script> <style type="text/css">/*<![CDATA[*/ @import "/web/20060220142557cs_/http://www.mediawiki.org/w/index.php?title=MediaWiki:Common.css&action=raw&ctype=text/css&smaxage=2678400"; @import "/web/20060220142557cs_/http://www.mediawiki.org/w/index.php?title=MediaWiki:Monobook.css&action=raw&ctype=text/css&smaxage=2678400"; @import "/web/20060220142557cs_/http://www.mediawiki.org/w/index.php?title=-&action=raw&gen=css&maxage=2678400"; /*]]>*/</style> </head> <body class="ns-0 ltr"> <div id="globalWrapper"> <div id="column-content"> <div id="content"> <a name="top" id="top"></a> <h1 class="firstHeading">MediaWiki</h1> <div id="bodyContent"> <h3 id="siteSub">From MediaWiki.org</h3> <div id="contentSub"></div> <div id="jump-to-nav">Jump to: <a href="#column-one">navigation</a>, <a href="#searchInput">search</a></div>  <table cellspacing="0" cellpadding="0" width="100%"> <tr> <td style="border:none; margin:none; padding:none;" valign="top"> <div style="border:0; margin:0.2em 0 0.2em 0.2em; "> <div style="background:#f9f9f9; padding:0px; border:1px solid #aaaaaa; margin-bottom:5px;"> <div style="line-height:120%; padding:0.4em; background-color:#eeeeee; border-bottom:1px solid #aaaaaa;"> <p><span style="color:#cf7606; font-size:200%;"><b>Welcome to</b> </span><span style="color:#005288; font-size:200%;"><b>MediaWiki.org</b></span></p> </div> <div style="background:#ffffff; padding:0.2em 0.4em 0.2em 0.4em;"> <p><b>MediaWiki</b> is a free software package originally written for <a href="https://web.archive.org/web/20060220142557/http://en.wikipedia.org/wiki/Wikipedia" class="extiw" title="en:Wikipedia">Wikipedia</a> but is now run on other projects of the non-profit <a href="https://web.archive.org/web/20060220142557/http://en.wikipedia.org/wiki/Wikimedia_Foundation" class="extiw" title="en:Wikimedia Foundation">Wikimedia Foundation</a> and <a href="/web/20060220142557/http://www.mediawiki.org/wiki/Sites_using_MediaWiki" title="Sites using MediaWiki">many other wikis</a>.</p> <p>This site is the home of MediaWiki. If you want to explore its basic contents, use the navigation on the right side. You'll find the fundamental introduction translated into some other languages, but the reference language on the whole site is English. Please read <a href="/web/20060220142557/http://www.mediawiki.org/wiki/About_this_site" title="About this site">more about this site</a>.</p> <p>If you have a question or a suggestion dealing with this wiki, use the related <a href="/web/20060220142557/http://www.mediawiki.org/wiki/Talk:MediaWiki" title="Talk:MediaWiki">discussion page</a>. For general questions dealing with the software see the recommended <a href="/web/20060220142557/http://www.mediawiki.org/wiki/Communication" title="Communication">possibilities of communication</a>.</p> </div> </div> </div> <div style="border:0; margin:0.2em 0 0.2em 0.2em; "> <div style="background:#f9f9f9; padding:0px; border:1px solid #aaaaaa; margin-bottom:15px;"> <div style="font-size:105%; line-height:120%; padding:0.4em; background-color:#eeeeee; border-bottom:1px solid #aaaaaa;"> <div class="floatleft"><span><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Image:Exquisite-khelpcenter.png" class="image" title="Info icon"><img src="https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Exquisite-khelpcenter.png/20px-Exquisite-khelpcenter.png" alt="Info icon" width="20" height="20" longdesc="/wiki/Image:Exquisite-khelpcenter.png"/></a></span></div> + + + <b>News</b> + + +</div> <div style="background:#ffffff; padding:0.2em 0.4em 0.2em 0.4em; font-size:95%;"> <p>Problems after upgrading to <b>PHP 4.4.1</b>? – Don't forget to upgrade MediaWiki to <b><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Download" title="Download">1.5.6 / 1.4.14 / 1.3.18</a></b>!</p> <ul> <li><b>2006-01-19</b>: 1.5.6 and 1.4.14 fix infinite loop bug in malformed edit comments <dl> <dd><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Image:Attention_niels_epting_01.png" class="image" title=""><img src="https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Attention_niels_epting_01.png/18px-Attention_niels_epting_01.png" alt="" width="18" height="18" longdesc="/wiki/Image:Attention_niels_epting_01.png"/></a> <i>Recommended upgrade; also various bug fixes in 1.5.6.</i></dd> </dl> </li> <li><b>2006-01-05</b>: Protection against Windows <a href="https://web.archive.org/web/20060220142557/http://en.wikipedia.org/wiki/Windows_Metafile_vulnerability" class="extiw" title="en:Windows Metafile vulnerability">WMF vulnerability</a> in 1.5.5 and 1.4.13 <dl> <dd><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Image:Attention_niels_epting_01.png" class="image" title=""><img src="https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Attention_niels_epting_01.png/18px-Attention_niels_epting_01.png" alt="" width="18" height="18" longdesc="/wiki/Image:Attention_niels_epting_01.png"/></a> <i>Please upgrade if you have uploads enabled to avoid being a vector for unpatched clients.</i></dd> </dl> </li> <li><b>2005-12-21</b>: Fix for remote code execution bug in 1.5 branch <dl> <dd><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Image:Attention_niels_epting_01.png" class="image" title=""><img src="https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Attention_niels_epting_01.png/18px-Attention_niels_epting_01.png" alt="" width="18" height="18" longdesc="/wiki/Image:Attention_niels_epting_01.png"/></a> <i>Upgrade all 1.5 installations to 1.5.4 or higher immediately!</i></dd> </dl> </li> </ul> </div> </div> </div> </td> <td width="17em" style="border: none; margin:none; padding:none;" valign="top"> <div style="border:0; margin:0.2em;"> <div style="margin-left:5px; margin-bottom:5px; padding:0px; border:1px solid #aaaaaa; width:17em;"> <div style="font-size:105%; line-height:120%; padding: 0.4em; background-color:#eeeeee; border-bottom:1px solid #aaaaaa;"> <div class="floatright"><span><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Image:Crystal_128_down.png" class="image" title="Download current version"><img src="https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/commons/thumb/6/68/Crystal_128_down.png/18px-Crystal_128_down.png" alt="Download current version" width="18" height="18" longdesc="/wiki/Image:Crystal_128_down.png"/></a></span></div> <b><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Download" title="Download">Current Versions</a></b></div> <div style="padding:0.4em; font-size: 95%;"> <p><span style="font-size:110%;"><b>1.5.6</b> · 2006-01-19</span><br/> 1.4.14 · 2006-01-19<br/> 1.3.18 · 2005-11-02</p> </div> </div> <div style="float:right; background:#f9f9f9; margin-left:5px; margin-bottom:3px; padding:0px; border:1px solid #aaaaaa; width:17em;"> <div style="font-size:105%; line-height:120%; padding:0.4em; background-color:#eeeeee; border-bottom:1px solid #aaaaaa;"> <div class="floatright"><span><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Image:Tournesol.png" class="image" title="MediaWiki Flower"><img src="https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/commons/thumb/f/f1/Tournesol.png/32px-Tournesol.png" alt="MediaWiki Flower" width="32" height="32" longdesc="/wiki/Image:Tournesol.png"/></a></span></div> <b>Fundamental Introduction to <strong>MediaWiki</strong></b></div> <div style="background:#ffffff; padding:0.4em; font-size: 95%;"> <p><b>Contents</b></p> <ul> <li><a href="/web/20060220142557/http://www.mediawiki.org/wiki/How_does_MediaWiki_work%3F" title="How does MediaWiki work?">How does MediaWiki work?</a></li> <li><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Documentation" title="Documentation">Documentation</a></li> <li><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Customization" title="Customization">Customization</a></li> <li><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Download" title="Download">Versions & Download</a></li> <li><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Installation" title="Installation">Installation</a></li> <li><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Communication" title="Communication">Support & Contact</a></li> <li><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Development" title="Development">Development</a></li> </ul> <hr/> <p><b>All other topics</b></p> <ul> <li>See navigation on the left</li> </ul> </div> </div> </div> </td> </tr> </table> <p><br style="clear:both;"/></p> <hr/> <table border="0" cellspacing="1"> <tr> <th valign="middle"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Image:Geographylogo.png" class="image" title=""><img src="https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/commons/thumb/5/59/Geographylogo.png/25px-Geographylogo.png" alt="" width="25" height="25" longdesc="/wiki/Image:Geographylogo.png"/></a></th> <td valign="middle" align="left"><small><b>Reference: <strong>English</strong></b> – Other: <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/de" title="MediaWiki/de">Deutsch</a> · <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/es" title="MediaWiki/es">Español</a> · <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/fr" title="MediaWiki/fr">Français</a> · <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/it" title="MediaWiki/it">Italiano</a> · <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/pt" title="MediaWiki/pt">Português</a> · <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/ja" title="MediaWiki/ja">日本語 (Japanese)</a> · <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/zh" title="MediaWiki/zh">中文 (Chinese)</a> · <a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki/ko" title="MediaWiki/ko">한국어 (Korean)</a></small></td> </tr> </table> <p><br/></p>  <div class="printfooter"> Retrieved from "<a href="https://web.archive.org/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki">http://www.mediawiki.org/wiki/MediaWiki</a>"</div>  <div class="visualClear"></div> </div> </div> </div> <div id="column-one"> <div id="p-cactions" class="portlet"> <h5>Views</h5> <ul> <li id="ca-nstab-main" class="selected"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki">Article</a></li> <li id="ca-talk"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Talk:MediaWiki">Discussion</a></li> <li id="ca-viewsource"><a href="/web/20060220142557/http://www.mediawiki.org/w/index.php?title=MediaWiki&action=edit">View source</a></li> <li id="ca-history"><a href="/web/20060220142557/http://www.mediawiki.org/w/index.php?title=MediaWiki&action=history">History</a></li> </ul> </div> <div class="portlet" id="p-personal"> <h5>Personal tools</h5> <div class="pBody"> <ul> <li id="pt-login"><a href="/web/20060220142557/http://www.mediawiki.org/w/index.php?title=Special:Userlogin&returnto=MediaWiki">Log in / create account</a></li> </ul> </div> </div> <div class="portlet" id="p-logo"> <a style="background-image: url(https://web.archive.org/web/20060220142557im_/http://upload.wikimedia.org/wikipedia/mediawiki/b/bc/Wiki.png);" href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki" title="MediaWiki"></a> </div> <script type="text/javascript"> if (window.isMSIE55) fixalpha(); </script> <div class="portlet" id="p-navigation"> <h5>Navigation</h5> <div class="pBody"> <ul> <li id="n-mainpage-text"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/MediaWiki">Main Page</a></li> <li id="n-recentchanges"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Special:Recentchanges">Recent changes</a></li> <li id="n-sourceforge-project"><a href="https://web.archive.org/web/20060220142557/http://sourceforge.net/projects/wikipedia/">SourceForge project page</a></li> <li id="n-extensions"><a href="https://web.archive.org/web/20060220142557/http://meta.wikimedia.org/wiki/Category:Mediawiki_Extensions">Extensions</a></li> <li id="n-skins"><a href="https://web.archive.org/web/20060220142557/http://meta.wikimedia.org/wiki/Gallery_of_user_styles">Skins</a></li> </ul> </div> </div> <div class="portlet" id="p-development"> <h5>Development</h5> <div class="pBody"> <ul> <li id="n-irc"><a href="https://web.archive.org/web/20060220142557/irc://irc.freenode.net/mediawiki">#MediaWiki</a></li> <li id="n-browse-cvs"><a href="https://web.archive.org/web/20060220142557/http://cvs.sourceforge.net/viewcvs.py/wikipedia/">Browse CVS</a></li> <li id="n-cvs-stats"><a href="https://web.archive.org/web/20060220142557/http://tools.wikimedia.de/~avar/cvs/html/">CVS statistics</a></li> <li id="n-phpdoc"><a href="https://web.archive.org/web/20060220142557/http://wikipedia.sourceforge.net/doc/">API documentation</a></li> </ul> </div> </div> <div class="portlet" id="p-resources"> <h5>Resources</h5> <div class="pBody"> <ul> <li id="n-help"><a href="https://web.archive.org/web/20060220142557/http://meta.wikimedia.org/wiki/Help:Contents">Help</a></li> <li id="n-faq"><a href="https://web.archive.org/web/20060220142557/http://meta.wikimedia.org/wiki/MediaWiki_FAQ">FAQ</a></li> <li id="n-bug-tracker"><a href="https://web.archive.org/web/20060220142557/http://bugzilla.wikimedia.org/">Bug tracker</a></li> <li id="n-Mailing-list"><a href="https://web.archive.org/web/20060220142557/http://mail.wikipedia.org/mailman/listinfo/mediawiki-l">Mailing list</a></li> </ul> </div> </div> <div id="p-search" class="portlet"> <h5><label for="searchInput">Search</label></h5> <div id="searchBody" class="pBody"> <form action="/web/20060220142557/http://www.mediawiki.org/wiki/Special:Search" id="searchform"><div> <input id="searchInput" name="search" type="text" accesskey="f" value=""/> <input type="submit" name="go" class="searchButton" id="searchGoButton" value="Go"/>  <input type="submit" name="fulltext" class="searchButton" value="Search"/> </div></form> </div> </div> <div class="portlet" id="p-tb"> <h5>Toolbox</h5> <div class="pBody"> <ul> <li id="t-whatlinkshere"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Special:Whatlinkshere/MediaWiki">What links here</a></li> <li id="t-recentchangeslinked"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Special:Recentchangeslinked/MediaWiki">Related changes</a></li> <li id="t-upload"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Special:Upload">Upload file</a></li> <li id="t-specialpages"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/Special:Specialpages">Special pages</a></li> <li id="t-print"><a href="/web/20060220142557/http://www.mediawiki.org/w/index.php?title=MediaWiki&printable=yes">Printable version</a></li> <li id="t-permalink"><a href="/web/20060220142557/http://www.mediawiki.org/w/index.php?title=MediaWiki&oldid=18000">Permanent link</a></li> </ul> </div> </div> </div> <div class="visualClear"></div> <div id="footer"> <div id="f-poweredbyico"><a href="https://web.archive.org/web/20060220142557/http://www.mediawiki.org/"><img src="/web/20060220142557im_/http://www.mediawiki.org/skins-1.5/common/images/poweredby_mediawiki_88x31.png" alt="MediaWiki"/></a></div> <div id="f-copyrightico"><a href="https://web.archive.org/web/20060220142557/http://wikimediafoundation.org/"><img src="/web/20060220142557im_/http://www.mediawiki.org/images/wikimedia-button.png" border="0" alt="Wikimedia Foundation"/></a></div> <ul id="f-list"> <li id="lastmod"> This page was last modified 05:14, 9 February 2006.</li> <li id="copyright">Content is available under <a href="https://web.archive.org/web/20060220142557/http://www.gnu.org/copyleft/fdl.html" class="external " title="http://www.gnu.org/copyleft/fdl.html" rel="nofollow">GNU Free Documentation License</a>.</li> <li id="privacy"><a href="https://web.archive.org/web/20060220142557/http://wikimediafoundation.org/wiki/Privacy_policy" title="wikimedia:Privacy policy">Privacy policy</a></li> <li id="about"><a href="/web/20060220142557/http://www.mediawiki.org/wiki/About_this_site" title="About this site">About MediaWiki.org</a></li> <li id="disclaimer"><a 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