Apache redirect variable output

images apache redirect variable output

Licensed under the Apache License, Version 2. Note that this can also be handled using the RedirectMatch directive:. In addition to all environment variables set within the Apache configuration and passed from the shell, CGI scripts and SSI pages are provided with a set of environment variables containing meta-information about the request as required by the CGI specification. Copyright The Apache Software Foundation. It can be easily modified to prevent logging of particular directories, or to prevent logging of requests coming from particular hosts. You might consider using the [CO] flag to set a cookie. Using the [END] flag terminates not only the current round of rewrite processing like [L] but also prevents any subsequent rewrite processing from occurring in per-directory htaccess context. The following directives modify normal HTTP response behavior.

  • Environment Variables in Apache Apache HTTP Server Version
  • RewriteRule Flags Apache HTTP Server Version
  • URL Rewriting Guide Apache HTTP Server
  • Redirecting and Remapping with mod_rewrite Apache HTTP Server Version

  • Later in your ruleset you might check for this environment variable using a RewriteCond. The %{ENV:variable} form of TestString in the RewriteCond allows mod_rewrite '​s setting of your browser and will send compressed output unconditionally.

    Environment Variables in Apache Apache HTTP Server Version

    A RewriteRule can have its behavior modified by one or more flags. on this same rule, the parameters are re-encoded before being passed on to the output URL. With the [E], or [env] flag, you can set the value of an environment variable.
    I've ended up with this:. This is not a recommended configuration, but it can work in limited circumstances.

    Video: Apache redirect variable output Apache URL Rewrite (mod_rewrite module) #57

    Such browsers can be easily fooled into using the UTF-7 character set, and UTF-7 content from input data such as the request-URI will not be escaped by the usual escaping mechanisms designed to prevent cross-site-scripting attacks. For example, if you wanted all image requests to be handled by a back-end image server, you might do something like the following:. True if the file exists and is symlink same as -L yes -F True if string is a valid file, accessible via all the server's currently-configured access controls for that path.

    images apache redirect variable output

    This technique is offered as an example, not as a recommendation. Perhaps we've recently rearranged our directory structure, dividing content into several locations.

    images apache redirect variable output
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    URL-based sharding across multiple backends Description: A common technique for distributing the burden of server load or storage space is called "sharding".

    Video: Apache redirect variable output Redirect HTTP to HTTPS - apache https / ssl site, redirect http to https tutorial

    In this example, as contrasted to the internal example above, we can simply use the Redirect directive. True if string is a valid URL, accessible via all the server's currently-configured access controls for that path. This is useful when mapping to files that have literal question marks in their filename.

    RewriteRule Flags Apache HTTP Server Version

    You are, of course, much better off simply serving the content dynamically, and customizing it based on the time of day. Otherwise, the current protocol, servername, and port number will be used to generate the URL sent with the redirect.

    This document supplements the mod_rewrite reference documentation. It describes how you can use mod_rewrite to redirect and remap request.

    images apache redirect variable output

    This includes. When redirecting to a local URL, additional environment variables are set so to a CGI script, the script should include a " Status: " header field in its output in.

    URL Rewriting Guide Apache HTTP Server

    The expression parser provides a number of variables of the form. Compare the host name to and redirect to if it matches We have numerous mirrors of our website, and want to redirect people to the one that is located in the country where they are located. On subrequests, it is not always useful, and can even cause errors, if the complete set of rules are applied.

    The status code specified need not necessarily be a redirect 3xx status code. This uses an internal subrequest to do the check, so use it with care - it can impact your server's performance! For these, the starting point in the BNF is expr. Copyright The Apache Software Foundation. As discussed above, the environment passed to CGI scripts includes standard meta-information about the request in addition to any variables set within the Apache configuration.

    images apache redirect variable output
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    This information can be used to control various operations such as logging or access control.

    Redirecting and Remapping with mod_rewrite Apache HTTP Server Version

    This flag is available in version 2. A particular resource might exist in one of several places, and we want to look in those places for the resource when it is requested. When suexec is used to launch CGI scripts, the environment will be cleaned down to a set of safe variables before CGI scripts are launched.

    Normal string-valued functions take one string as argument and return a string. F forbidden Using the [F] flag causes the server to return a Forbidden status code to the client. Perhaps we've recently rearranged our directory structure, dividing content into several locations.

    4 thoughts on “Apache redirect variable output

    1. If not, you will get an error from the proxy module. Flags are included in square brackets at the end of the rule, and multiple flags are separated by commas.

    2. Using these variables may cause the header name to be added to the Vary header of the HTTP response, except where otherwise noted for the directive accepting the expression.

    3. This forces the server to be more careful when sending a redirect to the client. In order to do this at present I need RewriteLogLevel at 4, which means everything on the virtual host is logged, rather than just the stuff I am restricting.