Return 404.4 Not Found when URL Rewrite
URL Rewrite module can redirect a URL to any internal (on the same site) or external URLs (on a separate site).
https://www.iis.net/download/urlrewrite
However, URLRewrite rewrite rule to external site doesn’t work. You can only rewrite the URL in the same site and same application pool.
For example, let’s set following rule to rewrite original Requested URL: https://localhost/81 to https://localhost:81
<rewrite>
<globalRules>
<rule name="URLTest">
<match url="([0-9]+)" />
<action type="Rewrite" url="https://localhost:{R:1}" appendQueryString="true" />
</rule>
</globalRules>
</rewrite>
Test https://localhost/81 and return HTTP Error 404.4- Not Found
The resource you are looking for does not have a handler associated with it.
Check FREB Log, it shows RewriteModule execute successfully
14. |
— |
PRE_BEGIN_REQUEST_START |
ModuleName="RewriteModule" |
15. |
i |
URL_REWRITE_START |
RequestURL="/81", Scope="Global", Type="Inbound" |
16. |
— |
RULE_EVALUATION_START |
RuleName="URLTest", RequestURL="81", QueryString="", PatternSyntax="Regex", StopProcessing="false", RelativePath="/" |
17. |
— |
PATTERN_MATCH |
Pattern="([0-9]+)", Input="81", Negate="false", Matched="true" |
18. |
— |
REWRITE_ACTION |
Substitution="https://localhost:{R:1}", RewriteURL="https://localhost:81", AppendQueryString="true", LogRewrittenURL="false" |
19. |
— |
RULE_EVALUATION_END |
RuleName="URLTest", RequestURL="https://localhost:81", QueryString="", StopProcessing="false", Succeeded="true" |
20. |
— |
GENERAL_SET_REQUEST_HEADER |
HeaderName="X-Original-URL", HeaderValue="/81", Replace="true" |
21. |
i |
URL_CHANGED |
OldUrl="/81", NewUrl="https://localhost:81" |
22. |
i |
URL_REWRITE_END |
RequestURL=https://localhost:81 |
But it fails with 404.4 in IIS Web Core.
156. |
r |
MODULE_SET_RESPONSE_ERROR_STATUSWarning |
ModuleName="IIS Web Core", Notification="MAP_REQUEST_HANDLER", HttpStatus="404", HttpReason="Not Found", HttpSubStatus="4", ErrorCode="The filename, directory name, or volume label syntax is incorrect. (0x8007007b)", ConfigExceptionInfo="" |
Solution
======
You need to install Application Request Routing and enable Proxy, then it will work with URL rewriting to remote servers (regardless where or what they are) since the Routing will take care of that.
https://www.iis.net/download/ApplicationRequestRouting
Enjoy!
Anik