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WebDAV
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<p>WebDAV (Web Distributed Authoring and Versioning) is a set of extensions to the <a href="/facts/Hypertext_Transfer_Protocol/TWtvf7JD">Hypertext Transfer Protocol</a> (HTTP), which allows <a href="/facts/User_agent/dFEyg2Xj">user agents</a> to collaboratively author contents <i>directly</i> in an <a href="/facts/Web_server/A4GS6thA">HTTP web server</a> by providing facilities for <a href="/facts/Concurrency_control/JWnmhVd5">concurrency control</a> and <a href="/facts/Namespace/9efXwMtV">namespace operations</a>, thus allowing the <a href="/facts/World_Wide_Web/wvnTrWFq">Web</a> to be viewed as a <i>writeable, collaborative medium</i> and not just a read-only medium. WebDAV is defined in <a href="/facts/RFC_(identifier)/esftTvE7">RFC</a> <a href="https://www.rfc-editor.org/rfc/rfc4918">4918</a> by a <a href="/facts/Working_group/dFlAPASD">working group</a> of the <a href="/facts/Internet_Engineering_Task_Force/tIcCsFhX">Internet Engineering Task Force</a> (IETF). </p><p>The WebDAV protocol provides a framework for users to create, change and move documents on a <a href="/facts/Server_(computing)/dEaYFD7r">server</a>. The most important features include the maintenance of properties about an author or modification date, <a href="/facts/Namespace/9efXwMtV">namespace</a> management, collections, and overwrite protection. Maintenance of properties includes such things as the creation, removal, and querying of file information. Namespace management deals with the ability to copy and move web pages within a server's namespace. Collections deal with the creation, removal, and listing of various resources. Lastly, overwrite protection handles aspects related to the locking of files. It takes advantage of existing technologies such as <a href="/facts/Transport_Layer_Security/pGy16TnA">Transport Layer Security</a>, <a href="/facts/Digest_access_authentication/V1tmcv5h">digest access authentication</a> or <a href="/facts/XML/clNgUfWk">XML</a> to satisfy those requirements. </p><p>Many[<i>which?</i>] modern <a href="/facts/Operating_system/8XTuvMh2">operating systems</a> provide built-in <a href="/facts/Client-side/v7DVfjsH">client-side</a> support for WebDAV. </p>