Distributed Authoring and Versioning (DAV) is a set of extensions to HTTP/1.1 that simplifies website development when work is being carried out in a team scenario. DAV is an open standard and is available on numerous platforms. DAV provides the ability to lock and unlock files and the ability to designate versions.

DAV is built directly on HTTP/1.1, so no other protocols, such as File Transfer Protocol (FTP) or Server Message Block (SMB), are required. DAV also provides the ability to query the web server for various resource properties such as file names, time stamps, and sizes. DAV also gives developers the ability to perform server-side file copying and moving.

For example, you can use the HTTP GET and PUT commands to retrieve files from the web servers and save them to different locations, or you can use DAV’s COPY command to tell a server to copy a file

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