IIS 10 - HTTP Error 413.1 - Request Entity Too Large - iis

I am having an issue posting a large file using IIS 10 and .Net.
The error code i receive is from IIS:
HTTP Error 413.1 - Request Entity Too Large
The request filtering module is configured to deny a request that exceeds the request content length.
I found many solutions online that are not working. Here are the changes i have made to IIS.
These changes were done under the default website which hosts the application where i'm having this issue. The changes made to the default website have propagated to all the sites contained within.
I have also set the uploadReadAheadSize to 2147483647:
The file i am attempting to upload is 97 MB.
What am i missing?

Set the uploadReadAheadSize value in the configuration file, here are the steps:
Select the site under Default Web Site
Select Configuration Editor
Within Section Dropdown, select "system.webServer/serverRuntime"
Enter a higher value for "uploadReadAheadSize" such as 1048576
bytes. Default is 49152 bytes.

Related

IIS - apply Permissions-Policy globally

We have a requirement to implement a Permissions-Policy to every site hosted on our IIS instance. I have tried to do this by adding a HTTP response header at the server level, but this doesn't seem to get picked up by any of the sites. If I add to each site individually, the policy is applied. I have tried applying directly to the root web.config file but this doesn't work either. What am I missing? We have a large number of sites, so applying to each site separately isn't really an option.

How do I increase the maximum size for failed request logs?

I am using the Failed Request Tracing component in IIS. One of the logs it has written ends with a LOG_FILE_MAX_SIZE_TRUNCATE error.
According to the documentation, this is controlled by the maxLogFileSizeKB settings:
If failed request tracing logs exceed this value, IIS will truncate the logs at the maximum file size and specify LOG_FILE_MAX_SIZE_TRUNCATE for the trace event.
The default value is 1024.
Apparently, I am supposed to be able to configure that value by clicking the Sites node, and then opening the website default dialog box. However, that maximum log size setting doesn't seem to be in there (German screenshot, but it should be analogous in other localized versions of IIS):
The docs also explain how to change the setting directly in Web.config, but instead of the depicted <traceFailedRequestsLogging> element, I only have a <traceFailedRequests> element in my Web.config files.
Curiously, I cannot even find any Web.config file on my entire disk that contains the general settings configured for the module (e.g. the target path for the log files):
What am I doing wrong?
The actual reason behind the error message was the FREB logs were too big. By default, IIS truncates the FREB log files at 512KB. for the FREB logs there was simply too much data for the log files to complete.
To resolve the issue you could run the following commands so the next time an HTTP error was triggered you will receive the full FREB log file and it pinpointed the exact problem:
cd /d "%windir%\system32\inetsrv"
appcmd set config /section:sites -siteDefaults.traceFailedRequestsLogging.maxLogFileSizeKB:1024
note: do not forget to run the command prompt as administrator.
you could also make these changes by using the iis Manager GUI:
1)open iis manager. select server node
2)double click on the configuration editor from the middle pane.
3)in configuration editor select section "system.applicationHost/sites".set the value for maxLogFileSizeKB.
4)apply the changes and restart the iis server.
you could refer the below link for more detail:
FREB: LOG_FILE_MAX_SIZE_TRUNCATE

error 500 in asp page, Response_Buffer_Limit_Exceeded, find what operation is causing it

I have an asp page that should load data with a query. After an update in the database, that should have populated the table that the query touch, the web page is suddently giving error 500. I inherited this windows 2003 machine with IIS.
The error message in the IIS logs is:
2019-06-03 12:19:24 W3SVC1 10.100.0.3 GET /Intranet/Q-Monitor_costi_produzione.asp username=username&x=1670|0|ASP_0251_:_80004005|Response_Buffer_Limit_Exceeded 80 - 10.100.0.78 Mozilla/4.0+(compatible;+MSIE+7.0;+Windows+NT+10.0;+WOW64;+Trident/7.0;+.NET4.0C;+.NET4.0E;+.NET+CLR+2.0.50727;+.NET+CLR+3.0.30729;+.NET+CLR+3.5.30729) 500 0 0
Is there a way to see what portion of the page is giving this error?
As far as I know, the Response_Buffer_Limit_Exceeded measn the execution of the ASP page caused the Response Buffer to exceed its configured limit.
To solve this issue ,I suggest you could follow below steps:
1.Open the IIS manager and click the ASP feature:
2.Change the Response Buffering Limit to 64000000(almost 64mb)

IIS 6 - 500 Internal Server Error during request redirect to EA server

We are using IIS6 as web server and EA server as application server. IIS6 to EA server redirection happens using libjeas_iis.dll
When the length of request header exceeds 2048 while IIS redirects to EA server, we are getting 500 Internal Server Error from IIS6.
However, the above mentioned error does not occur in the below scenario
The file deployed in web server (IIS6) is accessible.
Application server deployed jsp is accessible, if we are directly accessing the application server URL from browser instead of redirecting from web server.
We have the below setting in IIS 6.0 in urlscan.ini file. So, as per the below setting, we expect the request header with length 4096 to work properly. However, it seems there is no effect of the below setting.
MaxAllowedContentLength=30000000
MaxUrl=16384
MaxQueryString=4096
Kindly clarify us how & where to set the request header length to 4096.
Your response is highly appreciated. Thank you.
Ganesan MP -san,
you can use the Response.Bufferproperty in web.conf file
or
Click Start, click Run, type cmd, and then click OK.
Type the following command, and then press ENTER:
cd /d %systemdrive%\inetpub\adminscripts
Type the following command, and then press ENTER:
cscript.exe adsutil.vbs SET w3svc/aspbufferinglimit LimitSize
Note LimitSize represents the buffering limit size in bytes. For example, the number 67108864 sets the buffering limit size to 64 MB.
ref :http://support.microsoft.com/kb/944886
In my understanding After IIS 6 release there is no fix packs dll (IIS6 to EA server redirection).
Thanks & Regards,
VasanthaPrabu L

ColdFusion 10 Update 11 404 handler not firing

I know CF 10 has a number of issues surrounding 404 handling. This seems to be different from the other reports. Details:
Win2k8 R2/64 and IIS7.5
Upgrading from identical config on separate server. Only difference is CF9 -> CF 10. All works fine on CF9. Adobe CF9 Lockdown implemented on original server, CF10 Lockdown implemented on this server.
missing template handler set in CF Admin as /404.cfm, which should translate to the Cfusion root (c:\ColdFusion10\cfusion\wwwroot).
IIS has been config'd to trace failed 404 requests
IIS 404 handling is default (originally executed a CF URL but removed to simplify debug).
Coldfusion webroot where missing template handler resides is default install location
IIS site root is entirely different: c:\Other\Place\SiteRoot\
A sitewide error handler is also set in CF Admin in the same ColdFusion webroot and works as expected.
404.cfm is very simple:
<cfheader
statuscode="404"
statustext="Not Found">
<h1>404</h1><p>Page not found</p>
<cfoutput>#now()#</cfoutput>
Inputting the bad url [domain]/foo.cfm should display the above template. Instead I get an IIS error screen. The CF missing template handler is ignored. The IIS failed request trace says the url is
http://[mydomain]:80/jakarta/isapi_redirect.dll
and a detail view shows at Step 1
RequestURL="http://[mydomain]:80/foo.cfm
I've seen plenty of issues surrounding CF10 and 404's, but never that the missing template handler assignment is completely ignored. In CF9 this will generate output as expected. Anyone seen anything like this?
EDIT:
I have also tried config'ing this to match a different CF9 server I have running: Added a CF mapping to the web root of the site. Then placed the missing template handler in the web site's root rather than the CF default web root, lastly in cfadmin pointed to the missing template handler in the web site's root using the mapped folder. Same problem. Works fine in CF9 and not at all using CF10.
EDIT2:
As Miguel F pointed out in the comments, you can shut off HTML error codes in CF Admin and this will let the Missing Template Handler fire... BUT you get a 200 header to go with it. Apparently cfheader statements are ignored as I have tried placing the cfheader at the beginning and end of the template... still yields a 200. Visually fine but insofar as SEO is concerned thats a disaster. Just looked and my CF9 servers do not require this setting to be unchecked for their handlers to work.
EDIT3
Dana Kowalski's solution displays detailed IIS errors to the public, so for a 404 on, say, a made-up extension (foo.xyz), the screen will show file paths. Default behavior is to NOT display detailed errors except when running templates locally, and display custom error pages to visitors. The CF error template should work fine with that setting.
POSSIBLE SOLUTION
I stepped back to ColdFusion 9 as part of debugging this problem, and may have discovered the solution while debugging a separate related issue.
In the IIS Manager, click on the site in question. Select the Error Pages option. Select the 'Edit Feature Settings' link on the right side. Check that the 'Detailed Errors' option is selected.
If you have either of the other two selected, there are times IIS 7.x will take over and not let ColdFusion handle it.

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