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IIS Support Blog
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971

SSL certificate occasionally disappears from HTTPS binding

Viorel-Alexandru on 01-07-2020 02:38 AM
A couple of Metabase compatibility entries referring to SSL may interfere with the server certificates that are used in ...
687

Updating DOM elements with JQuery following partial postbacks from Update Panels in ASP.net webforms

pcociuba on 12-20-2019 02:48 AM
While working on implementing some of functionality on my online favorites manager (www.linqto.me) which I encourage eve...
779

MSVCR71.dll is missing

Nedim on 12-19-2019 11:05 AM
IIS relies on libraries with functions to host ASP.NET, PHP and other types of web applications. MSVCR71.dll is one of t...
632

Error 2146893818 (Event 7024 Invalid Signature)

Nedim on 12-19-2019 11:03 AM
When you try to start IIS Admin Service, this error message may be displayed: Windows could not start the IIS Admin Serv...
657

0x800f0922 Update IIS-RequestMonitor failed

Nedim on 12-19-2019 11:01 AM
Several features such as WebSocket Protocol, Tracing or Request Monitor can be installed in IIS server on need basis. I ...
699

Make ports 80 and 443 listened in IIS server

Nedim on 12-19-2019 10:59 AM
A website may not be accessible even though you have the correct binding. I came across to this issue recently in which ...
679

Disallowed Parent Path

Nedim on 11-25-2019 11:36 AM
If you use a relative path in your ASP code, you may come across to “Disallowed Parent Path” error if your IIS server is...
714

IIS reset issue (Restart attempt failed)

Nedim on 11-25-2019 11:33 AM
You may run into “Restart attempt failed” error while trying to restart IIS: Restart attempt failed. The IIS Admin Servi...
1,160

Host Header Vulnerability

Nedim on 11-25-2019 11:31 AM
Browsers send Host Header to inform about the URL client wants to visit. Attackers can temper Host Header to manipulate ...
522

Windows Process Activation error (NetFx40_IIS)

Nedim on 11-13-2019 10:19 AM
I have recently came across an issue that started occuring after updating .NET Framework in Windows Server. Here is the ...
460

IIS binding limit (401.2 error)

Nedim on 11-13-2019 10:16 AM
Windows authentication process can take place on the user-mode (IIS worker process) or kernel-mode (HTTP.SYS). For the k...
1,061

Manage IIS locally with a non-admin account

Nedim on 11-13-2019 10:14 AM
Administrators mostly use a local or domain account that has local admin rights to manage IIS. How about non-administrat...
2,234

Anti-forgery token and anti-forgery cookie related issues

Nedim on 11-05-2019 11:09 AM
Anti-forgery token is used to prevent CSRF (Cross-Site Request Forgery) attacks. Here is how it works in high-level
385

System.UriFormatException

Nedim on 11-05-2019 10:59 AM
System.UriFormatException with Invalid URI: The format of the URI could not be determined message is one of the errors t...
455

Issue with Advanced Logging creating logs

Nedim on 11-05-2019 10:54 AM
IIS 7, 7.5, and 8 used Advanced Logging feature as a customized logging option. IIS 8.5 introduced Enhanced Logging whic...
1,200

Troubleshooting IIS apps: one structured approach

Viorel-Alexandru on 10-25-2019 06:46 AM
Let’s see the big picture: how an HTTP request travels from the client to IIS, how the response is generated, and what t...
752

IISRESET internals

pcociuba on 10-25-2019 12:52 AM
Within support, we sometimes see customers performing an IISReset command to restart their server or restart their websi...
594

The file has not been pre-compiled error and solution

Nedim on 10-24-2019 08:25 AM
This intermittent error may show up in Event Viewer when your application fails to load: “The file has not been pre-comp...
690

Request based versus Session based Kerberos Authentication (or the AuthPersistNonNTLM parameter)

pcociuba on 10-15-2019 10:34 AM
In this article, we will discuss how the AuthPersistNonNTLM authentication attribute affects Kerberos authentication to ...
730

Using FREB to generate a dump on a long running request

pcociuba on 10-03-2019 08:49 AM
Sometimes you have a long running request on your web-application for which you want to know why the processing time is ...
627

runAllManagedModulesForAllRequests is conflicting with skipManagedModules and taking precedence

Enamul Khaleque on 09-25-2019 03:46 PM
As of this writing, when HTTP module is enabled, the warming HTML page defined in AppInt module may not load properly. G...
1,336

How to use Azure file share in IIS Shared Configuration?

Nedim on 09-25-2019 09:26 AM
System administrators can use the same configuration file across multiple IIS servers thanks to Shared Configuration fea...
1,071

Using URL Re-write in IIS to change Content-Disposition Headers

pcociuba on 09-25-2019 03:09 AM
How can you handle the way in which browsers display attachment files that end users may download from your website? And...
578

Error: Rewrite/globalRules cannot be read

Nedim on 09-24-2019 11:58 AM
IIS stores majority of its configuration in the applicationHost.config file. If there are syntax errors or missing entri...
2,514

How to use X-Forwarded-For header to log actual client IP address?

Nedim on 09-24-2019 11:22 AM
If your users jump through proxies and load balancers before accessing to your web application, the IP field in IIS logs...
Latest Comments
haniLG
in IIS and Url-Rewrite: rewriting the outbound response contents on 01-19-2020
Coming from a Linux environment and I needed to manage a Windows server with apps in IIS and Apache, this was a life saver! Thank you.
0 Likes
Nedim
in w3wp.exe crash (Exception code: 0xc0000005) on 01-02-2020
@Atul1993 I would recommend collecting a dump file with DebugDiag to find out the stack trace and underlying issue
0 Likes
Atul1993
in w3wp.exe crash (Exception code: 0xc0000005) on 01-02-2020
Hi Alli am getting error my server .On which their is no visual studio on server .After that i am getting this error please suggest me solution .Error :-Faulting application name: w3wp.exe, version: 10.0.14393.0, time stamp: 0x57899b8aFaulting module name: KERNELBASE.dll, version: 10.0.14393.3383, t...
0 Likes
carehart
in Setup IIS with URL Rewrite as a reverse proxy for real world apps on 12-30-2019
Thanks for the reply, Paul. And thanks very much for updating the post to offer that additional clarification (and more). As for the alternatives that could offer reverse proxy without ARR, I appreciate that you mention there are some, but again I would love to hear from you or anyone offering more ...
0 Likes
Venugopal_Neelakandan
in IIS acting as reverse proxy: Where the problems start on 12-26-2019
Hi Paul, First of all thank you for this excellent article. Following the same I've setup a reverse proxy. But, I'm facing an issue, after getting the response from backend server. The URL is not changing back to Web Server's host name. for example, when i request a Home.html from Backend server, th...
0 Likes