I'm getting a 404 during a URL redirect/rewrite, and I'm unable to pin down exactly what's causing it.
The warning is:
REWRITE_DISABLED_KERNEL_CACHE
Here are my rules:
<rule name="TFS Redirect" stopProcessing="true">
<match url="^((?!tfs).)*$" />
<conditions>
<add input="{HTTP_HOST}" pattern="tfs.domain.com" />
</conditions>
<action type="Redirect" url="http://tfs.domain.com/tfs" />
</rule>
<rule name="TFS Rewrite" stopProcessing="true">
<match url="^tfs(.*)" />
<action type="Rewrite" url="http://server3:8080/{R:0}" />
</rule>
The redirect rule seems to be working, as I get tfs.domain.com/tfs in my browser when I browse to tfs.domain.com.
But then I get the 404. I've looked at the Failed Request logs, but they're not revealing much. There's this question, but I'm afraid I'm at an absolute loss as to what the discussion means. Maybe that's the solution to my problem, but I have no idea what they're talking about. It's far over my head, unfortunately.
So... is the ARR warning causing the 404? If not, how can I get to the root cause of this problem?
Compact View
No. EventName Details Time
--- ------------------------------- ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------------
1. GENERAL_REQUEST_START SiteId="1", AppPoolId="DefaultAppPool", ConnId="1610612761", RawConnId="0", RequestURL="http://tfs.domain.com:80/favicon.ico", RequestVerb="GET" 01:03:35.718
2. GENERAL_SET_REQUEST_HEADER HeaderName="AspFilterSessionId", HeaderValue="", Replace="true" 01:03:35.718
3. GENERAL_ENDPOINT_INFORMATION RemoteAddress="192.168.0.1", RemotePort="54278", LocalAddress="192.168.0.12", LocalPort="80" 01:03:35.718
4. GENERAL_REQUEST_HEADERS Headers="Cache-Control: no-cache 01:03:35.718
Connection: keep-alive
Pragma: no-cache
Accept: image/webp,image/*,*/*;q=0.8
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8
Host: tfs.domain.com
Referer: http://tfs.domain.com/tfs
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36
DNT: 1
"
5. GENERAL_GET_URL_METADATA PhysicalPath="", AccessPerms="513" 01:03:35.718
6. HANDLER_CHANGED OldHandlerName="", NewHandlerName="StaticFile", NewHandlerModules="StaticFileModule,DefaultDocumentModule,DirectoryListingModule", NewHandlerScriptProcessor="", NewHandlerType="" 01:03:35.718
7. MODULE_PRECONDITION_NOT_MATCH Name="UrlRoutingModule-4.0", Precondition="managedHandler,runtimeVersionv4.0" 01:03:35.718
8. MODULE_PRECONDITION_NOT_MATCH Name="ScriptModule-4.0", Precondition="managedHandler,runtimeVersionv4.0" 01:03:35.718
9. MODULE_PRECONDITION_NOT_MATCH Name="OutputCache", Precondition="managedHandler" 01:03:35.718
10. MODULE_PRECONDITION_NOT_MATCH Name="Session", Precondition="managedHandler" 01:03:35.718
11. MODULE_PRECONDITION_NOT_MATCH Name="WindowsAuthentication", Precondition="managedHandler" 01:03:35.718
12. MODULE_PRECONDITION_NOT_MATCH Name="FormsAuthentication", Precondition="managedHandler" 01:03:35.718
13. MODULE_PRECONDITION_NOT_MATCH Name="DefaultAuthentication", Precondition="managedHandler" 01:03:35.718
14. MODULE_PRECONDITION_NOT_MATCH Name="RoleManager", Precondition="managedHandler" 01:03:35.718
15. MODULE_PRECONDITION_NOT_MATCH Name="UrlAuthorization", Precondition="managedHandler" 01:03:35.718
16. MODULE_PRECONDITION_NOT_MATCH Name="FileAuthorization", Precondition="managedHandler" 01:03:35.718
17. MODULE_PRECONDITION_NOT_MATCH Name="AnonymousIdentification", Precondition="managedHandler" 01:03:35.718
18. MODULE_PRECONDITION_NOT_MATCH Name="Profile", Precondition="managedHandler" 01:03:35.718
19. MODULE_PRECONDITION_NOT_MATCH Name="UrlMappingsModule", Precondition="managedHandler" 01:03:35.718
20. MODULE_PRECONDITION_NOT_MATCH Name="ServiceModel-4.0", Precondition="managedHandler,runtimeVersionv4.0" 01:03:35.718
21. URL_REWRITE_START RequestURL="/favicon.ico", Scope="Distributed", Type="Inbound" 01:03:35.718
22. RULE_EVALUATION_START RuleName="TFS Redirect", RequestURL="favicon.ico", QueryString="", PatternSyntax="Regex", StopProcessing="true", RelativePath="/" 01:03:35.718
23. PATTERN_MATCH Pattern="^((?!tfs).)*$", Input="favicon.ico", Negate="false", Matched="true" 01:03:35.718
24. CONDITIONS_EVALUATION_START LogicalGrouping="MatchAll" 01:03:35.718
25. CONDITION_EVALUATION Input="{HTTP_HOST}", ExpandedInput="tfs.domain.com", MatchType="Pattern", Pattern="tfs.domain.com", Negate="false", Succeeded="true" 01:03:35.718
26. CONDITIONS_EVALUATION_END Succeeded="true" 01:03:35.718
27. REDIRECT_ACTION Substitution="https://tfs.domain.com/tfs", RedirectURL="https://tfs.domain.com/tfs", AppendQueryString="true", RedirectType="Permanent" 01:03:35.718
28. RULE_EVALUATION_END RuleName="TFS Redirect", RequestURL="https://tfs.domain.com/tfs", QueryString="", StopProcessing="true", Succeeded="true" 01:03:35.718
29. REWRITE_DISABLED_KERNEL_CACHE 01:03:35.718
Warning
30. GENERAL_SET_RESPONSE_HEADER HeaderName="Location", HeaderValue="https://tfs.domain.com/tfs", Replace="true" 01:03:35.718
31. URL_REWRITE_END RequestURL="https://tfs.domain.com/tfs" 01:03:35.718
32. GENERAL_SET_RESPONSE_HEADER HeaderName="X-Powered-By", HeaderValue="ASP.NET", Replace="false" 01:03:35.718
33. GENERAL_NOT_SEND_CUSTOM_ERROR Reason="SETSTATUS_SUCCESS" 01:03:35.718
34. GENERAL_FLUSH_RESPONSE_START 01:03:35.718
35. GENERAL_RESPONSE_HEADERS Headers="Content-Type: text/html; charset=UTF-8 01:03:35.718
Location: https://tfs.domain.com/tfs
Server: Microsoft-IIS/10.0
X-Powered-By: ASP.NET
"
36. GENERAL_RESPONSE_ENTITY_BUFFER Buffer="<head><title>Document Moved</title></head> 01:03:35.718
<body><h1>Object Moved</h1>This document may be found <a HREF="https://tfs.domain.com/tfs">here</a></body>"
37. GENERAL_FLUSH_RESPONSE_END BytesSent="370", ErrorCode="The operation completed successfully. 01:03:35.718
(0x0)"
38. GENERAL_REQUEST_END BytesSent="370", BytesReceived="400", HttpStatus="301", HttpSubStatus="0" 01:03:35.718
All your rules look OK.
It seems like you need to enable ARR's proxy forwarding feature which is disabled by default, REWRITE_DISABLED_KERNEL_CACHE also gives a clue about it.
To enable proxy forwarding; open an elevated command prompt on the server and enter the following command.
appcmd.exe set config -section:system.webServer/proxy /enabled:"True" /commit:apphost
Or have a look at Creating a Forward Proxy Using Application Request Routing.
来源：https://stackoverflow.com/questions/44380121/is-this-arr-warning-causing-my-404