CINXE.COM

<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-disabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-not-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>Main Page: Difference between revisions - Wikitech</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-disabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-1 vector-feature-night-mode-disabled skin-theme-clientpref-day vector-toc-not-available";var cookie=document.cookie.match(/(?:^|; )labswikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""], "wgDefaultDateFormat":"dmy","wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"5bf030d0-a594-4015-8015-d2643e258f8c","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"Main_Page","wgTitle":"Main Page","wgCurRevisionId":2234806,"wgRevisionId":1912666,"wgArticleId":1,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":[],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"Main_Page","wgRelevantArticleId":1,"wgIsProbablyEditable":false,"wgRelevantPageIsProbablyEditable":false,"wgRestrictionEdit":["autoconfirmed"],"wgRestrictionMove":["sysop"],"wgIsMainPage":true,"wgNoticeProject":"wikitech","wgCiteReferencePreviewsActive":true,"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgVisualEditor":{"pageLanguageCode":"en", "pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":3000,"extRevisionSliderTimeOffset":0,"wgDiffOldId":1912665,"wgDiffNewId":1912666,"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgDiscussionToolsFeaturesEnabled":{"replytool":true,"newtopictool":true,"sourcemodetoolbar":true,"topicsubscription":false,"autotopicsub":false,"visualenhancements":false,"visualenhancements_reply":false,"visualenhancements_pageframe":false},"wgDiscussionToolsFallbackEditMode":"visual","wgULSPosition":"personal","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"wgSiteNoticeId":"2.0"};RLSTATE={"ext.globalCssJs.user.styles":"ready", "site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.visualEditor.diffPage.init.styles":"ready","oojs-ui.styles.icons-accessibility":"ready","oojs-ui.styles.icons-editing-advanced":"ready","oojs-ui-core.styles":"ready","oojs-ui.styles.indicators":"ready","mediawiki.widgets.styles":"ready","oojs-ui-core.icons":"ready","ext.RevisionSlider.lazyCss":"ready","mediawiki.interface.helpers.styles":"ready","mediawiki.diff.styles":"ready","ext.discussionTools.init.styles":"ready","mediawiki.helplink":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.pt":"ready","ext.dismissableSiteNotice.styles":"ready"};RLPAGEMODULES=["ext.visualEditor.diffPage.init","ext.RevisionSlider.lazyJs","mediawiki.diff","site","mediawiki.page.ready","skins.vector.js","ext.centralNotice.geoIP" ,"ext.gadget.site","ext.urlShortener.toolbar","ext.centralauth.centralautologin","mmv.bootstrap","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.discussionTools.init","ext.eventLogging","ext.wikimediaEvents","ext.uls.interface","ext.checkUser.clientHints","ext.dismissableSiteNotice"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.RevisionSlider.lazyCss%7Cext.discussionTools.init.styles%7Cext.dismissableSiteNotice.styles%7Cext.uls.pt%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.visualEditor.diffPage.init.styles%7Cext.wikimediamessages.styles%7Cmediawiki.diff.styles%7Cmediawiki.helplink%7Cmediawiki.interface.helpers.styles%7Cmediawiki.widgets.styles%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui.styles.icons-accessibility%2Cicons-editing-advanced%2Cindicators%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="noindex,nofollow,max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="Main Page: Difference between revisions - Wikitech"> <meta property="og:type" content="website"> <link rel="preconnect" href="//upload.wikimedia.org"> <link rel="icon" href="/static/favicon/wikitech.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikitech (en)"> <link rel="EditURI" type="application/rsd+xml" href="//wikitech.wikimedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://wikitech.wikimedia.org/wiki/Main_Page"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/"> <link rel="alternate" type="application/atom+xml" title="Wikitech Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="mw-article-diff ext-discussiontools-replytool-enabled ext-discussiontools-newtopictool-enabled ext-discussiontools-sourcemodetoolbar-enabled skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Main_Page rootpage-Main_Page skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes in the wiki [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-Server-admin-log:-Prod" class="mw-list-item"><a href="/wiki/Server_Admin_Log"><span>Server admin log: Prod</span></a></li><li id="n-Admin-log:-RelEng" class="mw-list-item"><a href="/wiki/Release_Engineering/SAL"><span>Admin log: RelEng</span></a></li><li id="n-Incident-status" class="mw-list-item"><a href="/wiki/Incident_status"><span>Incident status</span></a></li><li id="n-Deployments" class="mw-list-item"><a href="/wiki/Deployments"><span>Deployments</span></a></li><li id="n-SRE-Team-Help" class="mw-list-item"><a href="/wiki/SRE/SRE_Team_requests"><span>SRE Team Help</span></a></li> </ul> </div> </div> <div id="p-Cloud_VPS_&_Toolforge" class="vector-menu mw-portlet mw-portlet-Cloud_VPS_Toolforge" > <div class="vector-menu-heading"> Cloud VPS & Toolforge </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-Cloud-VPS-portal" class="mw-list-item"><a href="/wiki/Portal:Cloud_VPS"><span>Cloud VPS portal</span></a></li><li id="n-Toolforge-portal" class="mw-list-item"><a href="/wiki/Portal:Toolforge"><span>Toolforge portal</span></a></li><li id="n-Request-VPS-project" class="mw-list-item"><a href="https://phabricator.wikimedia.org/project/view/2875/"><span>Request VPS project</span></a></li><li id="n-Admin-log:-Cloud-VPS" class="mw-list-item"><a href="/wiki/Cloud_VPS_Server_Admin_Log"><span>Admin log: Cloud VPS</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikitech.svg" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikitech" src="/static/images/mobile/copyright/wikitech-wordmark.svg" style="width: 8.75em; height: 1.6875em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikitech [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikitech" aria-label="Search Wikitech" autocapitalize="sentences" title="Search Wikitech [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-uls" class="mw-list-item active user-links-collapsible-item"><a data-mw="interface" href="#" class="uls-trigger cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet"><span class="vector-icon mw-ui-icon-wikimedia-language mw-ui-icon-wikimedia-wikimedia-language"></span> <span>English</span></a> </li> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/?utm_source=donate&utm_medium=sidebar&utm_campaign=spontaneous&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=Main+Page&returntoquery=diff%3Dprev%26oldid%3D1912666" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out user-links-collapsible-item" title="More options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/?utm_source=donate&utm_medium=sidebar&utm_campaign=spontaneous&uselang=en"><span>Donate</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=Main+Page&returntoquery=diff%3Dprev%26oldid%3D1912666" title="You are encouraged to log in; however, it is not mandatory [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><div id="mw-dismissablenotice-anonplace"></div><script>(function(){var node=document.getElementById("mw-dismissablenotice-anonplace");if(node){node.outerHTML="\u003Cdiv class=\"mw-dismissable-notice\"\u003E\u003Cdiv class=\"mw-dismissable-notice-close\"\u003E[\u003Ca tabindex=\"0\" role=\"button\"\u003Edismiss\u003C/a\u003E]\u003C/div\u003E\u003Cdiv class=\"mw-dismissable-notice-body\"\u003E\u003C!-- CentralNotice --\u003E\u003Cdiv id=\"localNotice\" data-nosnippet=\"\"\u003E\u003Cdiv class=\"sitenotice\" lang=\"en\" dir=\"ltr\"\u003E\u003Ctable style=\"width: 75%; background-color: var(--background-color-warning-subtle, #fdf2d5); border: var(--border-subtle, 1px solid #987027); color: var(--color-base, #202122); border-radius: 10px; padding: 5px; margin: 0 auto;\"\u003E\n\u003Ctbody\u003E\u003Ctr\u003E\n\u003Ctd style=\"width:40px; height:40px; text-align:center; vertical-align:middle; padding: 2px;\"\u003E\u003Cspan typeof=\"mw:File\"\u003E\u003Ca href=\"/wiki/File:OOjs_UI_icon_alert-warning.svg\" class=\"mw-file-description\"\u003E\u003Cimg src=\"//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/OOjs_UI_icon_alert-warning.svg/30px-OOjs_UI_icon_alert-warning.svg.png\" decoding=\"async\" width=\"30\" height=\"30\" class=\"mw-file-element\" srcset=\"//upload.wikimedia.org/wikipedia/commons/thumb/3/3b/OOjs_UI_icon_alert-warning.svg/45px-OOjs_UI_icon_alert-warning.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3b/OOjs_UI_icon_alert-warning.svg/60px-OOjs_UI_icon_alert-warning.svg.png 2x\" data-file-width=\"20\" data-file-height=\"20\" /\u003E\u003C/a\u003E\u003C/span\u003E\n\u003C/td\u003E\n\u003Ctd style=\"text-align:center; vertical-align: middle; padding: 4px; max-height: 60px;\"\u003E\u003Cb\u003EWe are migrating Wikitech to \u003Ca href=\"/wiki/Wikitech/SUL-migration\" title=\"Wikitech/SUL-migration\"\u003ESUL\u003C/a\u003E!\u003C/b\u003E\n\u003Cp\u003E\u003Cb\u003EAction may be required for your \u003Ca href=\"/wiki/Wikitech/SUL-migration#What_You_Should_Do\" title=\"Wikitech/SUL-migration\"\u003E account\u003C/a\u003E!\u003C/b\u003E\n\u003C/p\u003E\u003Cp\u003E\u003Cb\u003ETrouble logging in? Please visit \u003Ca href=\"https://phabricator.wikimedia.org/T376267\" class=\"extiw\" title=\"phab:T376267\"\u003ET376267\u003C/a\u003E\u003C/b\u003E\n\u003C/p\u003E\n\u003C/td\u003E\u003C/tr\u003E\u003C/tbody\u003E\u003C/table\u003E\u003C/div\u003E\u003C/div\u003E\u003C/div\u003E\u003C/div\u003E";}}());</script></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <h1 id="firstHeading" class="firstHeading mw-first-heading">Main Page: Difference between revisions</h1> <div class="mw-indicators"> <div id="mw-indicator-mw-helplink" class="mw-indicator"><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Diff" target="_blank" class="mw-helplink"><span class="mw-helplink-icon"></span>Help</a></div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Main_Page" title="View the content page [c]" accesskey="c"><span>Main Page</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:Main_Page" rel="discussion" title="Discussion about the content page [t]" accesskey="t"><span>Discussion</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Main_Page"><span>Read</span></a></li><li id="ca-viewsource" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Main_Page&action=edit&oldid=1912666" title="This page is protected.
You can view its source [e]" accesskey="e"><span>View source</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Main_Page&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Main_Page"><span>Read</span></a></li><li id="ca-more-viewsource" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Main_Page&action=edit&oldid=1912666"><span>View source</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Main_Page&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/Main_Page" title="A list of all wiki pages that link here [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/Main_Page" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Main_Page&oldid=1912666" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Main_Page&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=Main_Page&id=1912666&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fwikitech.wikimedia.org%2Fw%2Findex.php%3Ftitle%3DMain_Page%26diff%3Dprev%26oldid%3D1912666"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fwikitech.wikimedia.org%2Fw%2Findex.php%3Ftitle%3DMain_Page%26diff%3Dprev%26oldid%3D1912666"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Special:Book&bookcmd=book_creator&referer=Main+Page"><span>Create a book</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Main_Page&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div id="siteSub" class="noprint">From Wikitech</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-revslider-container"><span style='width: 100%; text-align: center;' id='ooui-php-1' class='mw-revslider-toggle-button oo-ui-widget oo-ui-widget-enabled oo-ui-buttonElement oo-ui-buttonElement-frameless oo-ui-indicatorElement oo-ui-labelElement oo-ui-buttonWidget' data-ooui='{"_":"OO.ui.ButtonWidget","rel":["nofollow"],"framed":false,"indicator":"down","label":"Browse history interactively","title":"Open revision slider","classes":["mw-revslider-toggle-button"]}'><a role='button' title='Open revision slider' tabindex='0' rel='nofollow' class='oo-ui-buttonElement-button'><span class='oo-ui-iconElement-icon oo-ui-iconElement-noIcon'></span><span class='oo-ui-labelElement-label'>Browse history interactively</span><span class='oo-ui-indicatorElement-indicator oo-ui-indicator-down'></span></a></span><div class="mw-revslider-slider-wrapper" style="display: none;"><div class="mw-revslider-placeholder"><div class="mw-revslider-spinner"><div class="mw-revslider-bounce"></div></div></div></div></div><div class="mw-diff-revision-history-links"><a href="/w/index.php?title=Main_Page&diff=prev&oldid=1912665" class="mw-diff-revision-history-link-previous" title="Main Page">← Older edit</a><a href="/w/index.php?title=Main_Page&diff=next&oldid=1912666" class="mw-diff-revision-history-link-next" title="Main Page">Newer edit →</a></div><div class="mw-diff-table-prefix" dir="ltr" lang="en"><div class="mw-diff-inline-legend oo-ui-element-hidden"><span class="mw-diff-inline-legend-del">Content deleted</span> <span class="mw-diff-inline-legend-ins">Content added</span></div><div class="ve-init-mw-diffPage-diffMode"><span class='oo-ui-widget oo-ui-widget-enabled oo-ui-buttonGroupWidget'><span aria-disabled='true' class='oo-ui-widget oo-ui-widget-disabled oo-ui-buttonElement oo-ui-buttonElement-framed oo-ui-iconElement oo-ui-labelElement oo-ui-buttonWidget'><a role='button' tabindex='-1' aria-disabled='true' rel='nofollow' class='oo-ui-buttonElement-button'><span class='oo-ui-iconElement-icon oo-ui-icon-eye oo-ui-image-invert'></span><span class='oo-ui-labelElement-label'>Visual</span><span class='oo-ui-indicatorElement-indicator oo-ui-indicatorElement-noIndicator oo-ui-image-invert'></span></a></span><span class='oo-ui-widget oo-ui-widget-enabled oo-ui-buttonElement oo-ui-buttonElement-framed oo-ui-iconElement oo-ui-labelElement oo-ui-buttonWidget oo-ui-buttonElement-active'><a role='button' tabindex='0' rel='nofollow' class='oo-ui-buttonElement-button'><span class='oo-ui-iconElement-icon oo-ui-icon-wikiText oo-ui-image-invert'></span><span class='oo-ui-labelElement-label'>Wikitext</span><span class='oo-ui-indicatorElement-indicator oo-ui-indicatorElement-noIndicator oo-ui-image-invert'></span></a></span></span></div><div class="mw-diffPage-inlineToggle-container"><div id='mw-diffPage-inline-toggle-switch-layout' class='oo-ui-layout oo-ui-labelElement oo-ui-fieldLayout oo-ui-fieldLayout-align-left' data-ooui='{"_":"OO.ui.FieldLayout","fieldWidget":{"tag":"mw-diffPage-inline-toggle-switch"},"$overlay":true,"label":"Inline","title":"Switches between inline format and two-column format"}'><div class='oo-ui-fieldLayout-body'><span class='oo-ui-fieldLayout-header'><label title='Switches between inline format and two-column format' id='ooui-php-2' class='oo-ui-labelElement-label'>Inline</label></span><div class='oo-ui-fieldLayout-field'><div id='mw-diffPage-inline-toggle-switch' title='Switches between inline format and two-column format' aria-checked='false' tabindex='0' role='switch' aria-labelledby='ooui-php-2' class='oo-ui-widget oo-ui-widget-enabled oo-ui-toggleWidget oo-ui-toggleWidget-off oo-ui-toggleSwitchWidget' data-ooui='{"_":"OO.ui.ToggleSwitchWidget","href":"\/w\/index.php?title=Main_Page&diff=prev&oldid=1912666&diff-type=inline","value":false,"title":"Switches between inline format and two-column format"}'><span class='oo-ui-toggleSwitchWidget-glow'></span><a href='/w/index.php?title=Main_Page&diff=prev&oldid=1912666&diff-type=inline'><span class='oo-ui-toggleSwitchWidget-grip'></span></a></div></div></div></div></div></div><table class="diff diff-type-table diff-contentalign-left diff-editfont-monospace" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" class="diff-otitle diff-side-deleted"><div id="mw-diff-otitle1"><strong><a href="/w/index.php?title=Main_Page&oldid=1912665" title="Main Page">Revision as of 19:45, 19 May 2021</a> <span class="mw-diff-edit"><a href="/w/index.php?title=Main_Page&action=edit&oldid=1912665" title="Main Page">view source</a></span><span class="mw-diff-timestamp" data-timestamp="2021-05-19T19:45:25Z"></span></strong></div><div id="mw-diff-otitle2"><a href="/wiki/User:Wolfgang_Kandek" class="mw-userlink" title="User:Wolfgang Kandek" data-mw-revid="1912665"><bdi>Wolfgang Kandek</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:Wolfgang_Kandek" class="mw-usertoollinks-talk" title="User talk:Wolfgang Kandek">talk</a> | <a href="/wiki/Special:Contributions/Wolfgang_Kandek" class="mw-usertoollinks-contribs" title="Special:Contributions/Wolfgang Kandek">contribs</a>)</span><div class="mw-diff-usermetadata"><div class="mw-diff-userroles"></div><div class="mw-diff-usereditcount"><span>361</span> edits</div></div></div><div id="mw-diff-otitle3"><span class="comment mw-comment-none">No edit summary</span></div><div id="mw-diff-otitle5"></div><div id="mw-diff-otitle4"><a href="/w/index.php?title=Main_Page&diff=prev&oldid=1912665" title="Main Page" id="differences-prevlink">← Older edit</a></div></td> <td colspan="2" class="diff-ntitle diff-side-added"><div id="mw-diff-ntitle1"><strong><a href="/w/index.php?title=Main_Page&oldid=1912666" title="Main Page">Revision as of 19:47, 19 May 2021</a> <span class="mw-diff-edit"><a href="/w/index.php?title=Main_Page&action=edit&oldid=1912666" title="Main Page">view source</a></span><span class="mw-diff-timestamp" data-timestamp="2021-05-19T19:47:26Z"></span> </strong></div><div id="mw-diff-ntitle2"><a href="/wiki/User:Wolfgang_Kandek" class="mw-userlink" title="User:Wolfgang Kandek" data-mw-revid="1912666"><bdi>Wolfgang Kandek</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/User_talk:Wolfgang_Kandek" class="mw-usertoollinks-talk" title="User talk:Wolfgang Kandek">talk</a> | <a href="/wiki/Special:Contributions/Wolfgang_Kandek" class="mw-usertoollinks-contribs" title="Special:Contributions/Wolfgang Kandek">contribs</a>)</span><div class="mw-diff-usermetadata"><div class="mw-diff-userroles"></div><div class="mw-diff-usereditcount"><span>361</span> edits</div></div></div><div id="mw-diff-ntitle3"><span class="comment mw-comment-none">No edit summary</span></div><div id="mw-diff-ntitle5"><span class="mw-tag-markers"><a href="/wiki/Special:Tags" title="Special:Tags">Tag</a>: <span class="mw-tag-marker mw-tag-marker-visualeditor-switched"><a href="/wiki/Wikitech:VisualEditor" title="Wikitech:VisualEditor">Visual edit: Switched</a></span></span></div><div id="mw-diff-ntitle4"><a href="/w/index.php?title=Main_Page&diff=next&oldid=1912666" title="Main Page" id="differences-nextlink">Newer edit →</a></div></td> </tr><tr> <td colspan="2" class="diff-lineno">Line 38:</td> <td colspan="2" class="diff-lineno">Line 38:</td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>| alt = Wikitech logo</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>| alt = Wikitech logo</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>| link = Wikimedia infrastructure</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>| link = Wikimedia infrastructure</div></td> </tr> <tr> <td class="diff-marker" data-marker="−"></td> <td class="diff-deletedline diff-side-deleted"><div>| description = The main namespace of this wiki contains internal technical documentation from the [Site Reliability Engineering (SRE)] team for the Wikimedia Foundation. Documentation is available on most aspects of the technical operations of the [[Wikimedia infrastructure|production infrastructure]] as well as information on how to become involved in improving the underlying infrastructure of Wikimedia projects as a volunteer.</div></td> <td class="diff-marker" data-marker="+"></td> <td class="diff-addedline diff-side-added"><div>| description = The main namespace of this wiki contains internal technical documentation from the [<ins class="diffchange diffchange-inline">[SRE|SRE </ins>Site Reliability Engineering (SRE)<ins class="diffchange diffchange-inline">]</ins>] team for the Wikimedia Foundation. Documentation is available on most aspects of the technical operations of the [[Wikimedia infrastructure|production infrastructure]] as well as information on how to become involved in improving the underlying infrastructure of Wikimedia projects as a volunteer.</div></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><br /></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><br /></td> </tr> <tr> <td class="diff-marker"></td> <td class="diff-context diff-side-deleted"><div>For technical documentation of MediaWiki software, see [[mw:Main Page|MediaWiki.org]].</div></td> <td class="diff-marker"></td> <td class="diff-context diff-side-added"><div>For technical documentation of MediaWiki software, see [[mw:Main Page|MediaWiki.org]].</div></td> </tr> </table><hr class='diff-hr' id='mw-oldid' /> <h2 class='diff-currentversion-title'>Revision as of 19:47, 19 May 2021</h2> <div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><p><b>Wikitech</b> is the home of technical documentation of <a href="https://foundation.wikimedia.org/wiki/Home" class="extiw" title="foundation:Home">Wikimedia Foundation</a> infrastructure and services. This includes <a href="/wiki/Wikimedia_infrastructure" title="Wikimedia infrastructure">production clusters</a>, <a href="/wiki/Help:Cloud_Services_Introduction" class="mw-redirect" title="Help:Cloud Services Introduction">Wikimedia Cloud Services</a>, <a href="/wiki/Portal:Toolforge" title="Portal:Toolforge">Toolforge</a> hosting, and the <a href="/wiki/Nova_Resource:Deployment-prep" title="Nova Resource:Deployment-prep">Beta Cluster</a>. </p><p>To edit this wiki, you need a <b><a href="/wiki/Help:Create_a_Wikimedia_developer_account" title="Help:Create a Wikimedia developer account">Wikimedia developer account</a></b>. Wikitech does not use the <a href="https://meta.wikimedia.org/wiki/Help:Unified_login" class="extiw" title="m:Help:Unified login">Wikimedia Single Unified Login (SUL)</a> (like on Wikipedia), and does not permit editing without an account. </p> <style data-mw-deduplicate="TemplateStyles:r2084555">.mw-parser-output .mw-tpl-portal-list{border-top:1px solid #a7d7f9}.mw-parser-output .mw-tpl-portal-list-caption{font-weight:bold;text-align:center}.mw-parser-output .mw-tpl-portal{border-bottom:1px solid #a7d7f9}.mw-parser-output .mw-tpl-portal-image,.mw-parser-output .mw-tpl-portal-name{font-size:160%;padding:0.5em 0;text-align:center}.mw-parser-output .mw-tpl-portal-name{vertical-align:middle}.mw-parser-output .mw-tpl-portal-description{vertical-align:middle;padding:0.5em}@media only screen and (min-width:768px){.mw-parser-output .mw-tpl-portal-list{display:table;margin:0 auto}.mw-parser-output .mw-tpl-portal-list-caption{display:table-caption}.mw-parser-output .mw-tpl-portal{display:table-row;border-bottom:none}.mw-parser-output .mw-tpl-portal-image,.mw-parser-output .mw-tpl-portal-description,.mw-parser-output .mw-tpl-portal-name{border-bottom:1px solid #a7d7f9;display:table-cell;width:25%}.mw-parser-output .mw-tpl-portal-description{width:75%}}</style> <div class="mw-tpl-portal-list"> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2084555"><div class="mw-tpl-portal"><div class="mw-tpl-portal-image"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/Help:Cloud_Services_Introduction" title="Help:Cloud Services Introduction"><img alt="Introduction" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Wikimedia_Cloud_Services_logo_with_text.svg/80px-Wikimedia_Cloud_Services_logo_with_text.svg.png" decoding="async" width="80" height="92" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Wikimedia_Cloud_Services_logo_with_text.svg/120px-Wikimedia_Cloud_Services_logo_with_text.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Wikimedia_Cloud_Services_logo_with_text.svg/160px-Wikimedia_Cloud_Services_logo_with_text.svg.png 2x" data-file-width="1100" data-file-height="1260"/></a><figcaption></figcaption></figure> <a href="/wiki/Help:Cloud_Services_Introduction" class="mw-redirect" title="Help:Cloud Services Introduction">Introduction</a></div><div class="mw-tpl-portal-description">An overview of the <b>Wikimedia Cloud Services</b> (WMCS) products and ecosystem.</div></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2084555"><div class="mw-tpl-portal"><div class="mw-tpl-portal-image"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/Portal:Cloud_VPS" title="Portal:Cloud VPS"><img alt="Wikimedia Labs logo" src="//upload.wikimedia.org/wikipedia/labs/thumb/6/60/Wikimedia_labs_logo.svg/80px-Wikimedia_labs_logo.svg.png" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/labs/thumb/6/60/Wikimedia_labs_logo.svg/120px-Wikimedia_labs_logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/labs/thumb/6/60/Wikimedia_labs_logo.svg/160px-Wikimedia_labs_logo.svg.png 2x" data-file-width="900" data-file-height="900"/></a><figcaption></figcaption></figure> <a href="/wiki/Portal:Cloud_VPS" title="Portal:Cloud VPS">Cloud VPS</a></div><div class="mw-tpl-portal-description"><b>Wikimedia Cloud Virtual Private Server</b> (<b>Cloud VPS</b>) provides a cloud computing infrastructure powered by <a href="https://en.wikipedia.org/wiki/OpenStack" class="extiw" title="w:OpenStack">OpenStack</a> for projects related to the <a href="https://meta.wikimedia.org/wiki/Wikimedia_movement" class="extiw" title="meta:Wikimedia movement">Wikimedia movement</a>.</div></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2084555"><div class="mw-tpl-portal"><div class="mw-tpl-portal-image"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/Portal:Toolforge" title="Portal:Toolforge"><img alt="Wikimedia Toolforge logo" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Toolforge_logo.svg/80px-Toolforge_logo.svg.png" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Toolforge_logo.svg/120px-Toolforge_logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/c5/Toolforge_logo.svg/160px-Toolforge_logo.svg.png 2x" data-file-width="180" data-file-height="180"/></a><figcaption></figcaption></figure> <a href="/wiki/Portal:Toolforge" title="Portal:Toolforge">Toolforge</a></div><div class="mw-tpl-portal-description"><b>Toolforge</b> is a hosting environment for developers working on tools (bots, webservices, scheduled jobs) that help maintain and support Wikimedia wikis.</div></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2084555"><div class="mw-tpl-portal"><div class="mw-tpl-portal-image"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/Portal:Data_Services" title="Portal:Data Services"><img alt="Data Services logo" src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/WMCS_data_services.svg/80px-WMCS_data_services.svg.png" decoding="async" width="80" height="113" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d2/WMCS_data_services.svg/120px-WMCS_data_services.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d2/WMCS_data_services.svg/160px-WMCS_data_services.svg.png 2x" data-file-width="744" data-file-height="1052"/></a><figcaption></figcaption></figure> <a href="/wiki/Portal:Data_Services" title="Portal:Data Services">Data Services</a></div><div class="mw-tpl-portal-description"><b>Wiki replicas</b> and offerings for analysis, Tool building, and exploration. Both Cloud VPS and Toolforge can be used to access Data Services.</div></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r2084555"><div class="mw-tpl-portal"><div class="mw-tpl-portal-image"><figure class="mw-halign-center" typeof="mw:File"><a href="/wiki/Wikimedia_infrastructure" title="Wikimedia infrastructure"><img alt="Wikitech logo" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Wikitech-2021-blue-large-icon.svg/80px-Wikitech-2021-blue-large-icon.svg.png" decoding="async" width="80" height="80" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/52/Wikitech-2021-blue-large-icon.svg/120px-Wikitech-2021-blue-large-icon.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/52/Wikitech-2021-blue-large-icon.svg/160px-Wikitech-2021-blue-large-icon.svg.png 2x" data-file-width="222" data-file-height="222"/></a><figcaption></figcaption></figure> <a href="/wiki/Wikimedia_infrastructure" title="Wikimedia infrastructure">SRE docs</a></div><div class="mw-tpl-portal-description">The main namespace of this wiki contains internal technical documentation from the <a href="/wiki/SRE" title="SRE">SRE Site Reliability Engineering (SRE)</a> team for the Wikimedia Foundation. Documentation is available on most aspects of the technical operations of the <a href="/wiki/Wikimedia_infrastructure" title="Wikimedia infrastructure">production infrastructure</a> as well as information on how to become involved in improving the underlying infrastructure of Wikimedia projects as a volunteer. For technical documentation of MediaWiki software, see <a href="https://www.mediawiki.org/wiki/Main_Page" class="extiw" title="mw:Main Page">MediaWiki.org</a>.</div></div> </div> </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://wikitech.wikimedia.org/w/index.php?title=Main_Page&oldid=1912666">https://wikitech.wikimedia.org/w/index.php?title=Main_Page&oldid=1912666</a>"</div></div> <div id="catlinks" class="catlinks catlinks-allhidden" data-mw="interface"></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 19 May 2021, at 19:47.</li> <li id="footer-info-copyright">Text is available under the <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en">Creative Commons Attribution-ShareAlike License</a>; additional terms may apply. See <a class="external text" href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use">Terms of Use</a> for details.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Main_Page">About Wikitech</a></li> <li id="footer-places-disclaimers"><a href="https://foundation.wikimedia.org/wiki/General_disclaimer">Disclaimers</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://www.mediawiki.org/wiki/Special:MyLanguage/Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/wikitech.wikimedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//wikitech.wikimedia.org/w/index.php?title=Main_Page&diff=prev&oldid=1912666&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-5cd4cd96d5-qxsfd","wgBackendResponseTime":172,"wgDiscussionToolsPageThreads":[],"wgPageParseReport":{"discussiontools":{"limitreport-timeusage":"0.005"},"limitreport":{"cputime":"0.027","walltime":"0.039","ppvisitednodes":{"value":119,"limit":1000000},"postexpandincludesize":{"value":2601,"limit":2097152},"templateargumentsize":{"value":1641,"limit":2097152},"expansiondepth":{"value":3,"limit":100},"expensivefunctioncount":{"value":0,"limit":500},"unstrip-depth":{"value":0,"limit":20},"unstrip-size":{"value":6402,"limit":5000000},"timingprofile":["100.00% 3.787 1 -total"," 94.40% 3.575 5 Template:Portal_list_item"]},"cachereport":{"origin":"mw-web.codfw.main-5cd4cd96d5-qxsfd","timestamp":"20241127060402","ttl":2592000,"transientcontent":false}}});});</script> </body> </html>