Redirecionarea

Redirecionarea, in the context of computer networks and web technology, refers to the process of sending a user or a system from one location to another. This is commonly implemented through HTTP status codes, most notably the 301 Moved Permanently and 302 Found (or 307 Temporary Redirect). When a web browser requests a URL that has been redirected, the server responds with a redirection status code and the new URL. The browser then automatically makes a new request to the provided URL.

This technique is widely used for several purposes. Website restructuring or URL changes often employ permanent redirects (301) to ensure that old links continue to work and to transfer search engine ranking signals to the new pages. Temporary redirects (302 or 307) are used when a resource is temporarily unavailable or when performing maintenance on a page. They signal to search engines that the original URL is still the canonical one and will be back.

Beyond web browsing, redirection is a fundamental concept in operating systems and command-line interfaces. For example, in Unix-like systems, input and output streams can be redirected. Standard output from a command can be sent to a file instead of the console, or the standard input for a command can be taken from a file. This allows for greater flexibility in scripting and automating tasks. In essence, redirection is a mechanism for altering the default flow of data or requests from one destination to another.