If you see this error, that's actually good! This means that Apache is parsing the. So far, so good! If you do not see an 'Internal Server Error', your Apache setup ignores the. Generally, Apache ignores the. If you are not sure if the. There are a plethora of reasons why it might not work on your system, and these reasons vary so wildly, that we can't give an exhaustive solution for that.
That said, here are a few pointers that might help you fix it:. It's unusual, but possible that. If you are hosting it yourself, it's easy enough to fix.
Open your httpd. We hope you enjoyed reading the guide and you are going to apply the steps learned on your Ubuntu Full Name - we show it in the review in different places on our website and inside our widgets on 3rd party websites if they use it.
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We collect this information automatically when the review is posted by the author. We don't show IP address to other users. All reviewers can request the deletion of any personal information and it will be deleted within the 48 hours after the request. Prerequisites Ubuntu Setup your server to accept. For example, if you wanted all image requests to be handled by a back-end image server, you might do something like the following:. Use of the [P] flag implies [L] - that is, the request is immediately pushed through the proxy, and any following rules will not be considered.
If not, you will get an error from the proxy module. Use this flag to achieve a more powerful implementation of the ProxyPass directive, to map remote content into the namespace of the local server. Take care when constructing the target URL of the rule, considering the security impact from allowing the client influence over the set of URLs to which your server will act as a proxy.
Ensure that the scheme and hostname part of the URL is either fixed, or does not allow the client undue influence. This means the performance of your proxy will be better if you set it up with ProxyPass or ProxyPassMatch. The target or substitution string in a RewriteRule is assumed to be a file path, by default. That is to say, the use of the [PT] flag causes the result of the RewriteRule to be passed back through URL mapping, so that location-based mappings, such as Alias , Redirect , or ScriptAlias , for example, might have a chance to take effect.
Omission of the [PT] flag in this case will cause the Alias to be ignored, resulting in a 'File not found' error being returned. The PT flag implies the L flag: rewriting will be stopped in order to pass the request to the next phase of processing. The only way to circumvent that is to rewrite to -. When the replacement URI contains a query string, the default behavior of RewriteRule is to discard the existing query string, and replace it with the newly generated one.
Using the [QSA] flag causes the query strings to be combined. Using the [QSD] flag causes the query string to be discarded. If the target URI has a query string, the default behavior will be observed - that is, the original query string will be discarded and replaced with the query string in the RewriteRule target URI.
By default, the first left-most question mark in the substitution delimits the path from the query string. Using the [QSL] flag instructs RewriteRule to instead split the two components using the last right-most question mark. This is useful when mapping to files that have literal question marks in their filename. If no query string is used in the substitution, a question mark can be appended to it in combination with this flag. Otherwise, the current protocol, servername, and port number will be used to generate the URL sent with the redirect.
The status code specified need not necessarily be a redirect 3xx status code. However, if a status code is outside the redirect range then the substitution string is dropped entirely, and rewriting is stopped as if the L were used. In addition to response status codes, you may also specify redirect status using their symbolic names: temp default , permanent , or seeother. The [S] flag is used to skip rules that you don't want to run.
This can be thought of as a goto statement in your rewrite ruleset. In the following example, we only want to run the RewriteRule if the requested URI doesn't correspond with an actual file. This technique is useful because a RewriteCond only applies to the RewriteRule immediately following it. Thus, if you want to make a RewriteCond apply to several RewriteRule s, one possible technique is to negate those conditions and add a RewriteRule with a [Skip] flag.
Sets the MIME type with which the resulting response will be sent. This has the same effect as the AddType directive. For example, you might use the following technique to serve Perl source code as plain text, if requested in a particular way:. Or, perhaps, if you have a camera that produces jpeg images without file extensions, you could force those images to be served with the correct MIME type by virtue of their file names:.
Always consider the alternate solutions to a problem before resorting to rewrite, which will invariably be a less efficient solution than the alternatives. Copyright The Apache Software Foundation. Licensed under the Apache License, Version 2. RewriteRule Flags Available Languages: en fr.
Introduction A RewriteRule can have its behavior modified by one or more flags. RewriteRule pattern target [Flag1,Flag2,Flag3] Each flag with a few exceptions has a short form, such as CO , as well as a longer form, such as cookie.
Presented here are each of the available flags, along with an example of how you might use them. B escape backreferences The [B] flag instructs RewriteRule to escape non-alphanumeric characters before applying the transformation. This flag is available in version 2. C chain The [C] or [chain] flag indicates that the RewriteRule is chained to the next rule.
E env With the [E], or [env] flag, you can set the value of an environment variable. END 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. F forbidden Using the [F] flag causes the server to return a Forbidden status code to the client.
The following rule will forbid.
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