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IIS Support Blog

  • 383 Blog Articles
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692

ASP.NET ActiveDirectoryMembershipProvider and port 445 (SMB)

MattHamrick on 12-22-2020 06:11 PM
While AD Membership is no longer recommended for use (use ADFS or something more modern instead), and is no longer being...
642

How to change notification text when bot sends an adaptive card in Microsoft Teams?

Sai_Teja_Nagamothu on 12-01-2020 08:28 AM
When bot sends an adaptive card, Microsoft Teams notification sent a "Sent a card" message. Like shown below:
633

“Reference cannot be resolved” error

Nedim on 11-30-2020 02:48 PM
While trying to make a WCF service to connect Dynamics 365, I came across Message Metadata error
642

Web Management Service issue (2147483656)

Nedim on 11-30-2020 02:46 PM
If Web Management Service service doesn’t start, SCCM management points may run into issues.
1,252

System.Security.Cryptography.CryptographicException: The payload was invalid

Jason Xu on 11-20-2020 11:33 AM
When you are using your .Net Core application to decrypt a string from a different machine than it was encrypted, you ma...
1,034

Publish Azure Bot Framework Composer Bot to already existing Resource Group.

Sai_Teja_Nagamothu on 11-17-2020 06:25 AM
Follow the same steps mentioned here Publish a bot to Azure - Bot Composer | Microsoft Docs However to publish Azure Bot...
633

Underpinnings of Bot analytics

mertozturk on 11-12-2020 11:33 PM
Is your bot analytics blade showing unexpected information. You should read this article!
1,513

Duplicate collection entry of type (0x800700b7)

Nedim on 11-04-2020 06:15 PM
Error after enabling FREB: "Cannot add duplicate collection entry of type ‘add’ with unique key attribute ‘path’ set to ...
1,537

CLSID failed (800700b7)

Nedim on 11-04-2020 06:12 PM
If IIS Manager doesn’t open because of the error below, it may cause delays in maintenance and migrations.
1,446

W3C Logging Service failure (ID 6005)

Nedim on 11-04-2020 06:11 PM
In some cases, Event Viewer may display “W3C Logging Service failed to connect to the pipe server” error after applicati...
1,134

Unexpected end of file has occurred

Nedim on 10-30-2020 01:51 PM
If there is something wrong with the IIS config file, IIS Manager may crash with this error
1,046

AspNetInitClrHostFailureModule (0x80131704 – 2148734724)

Nedim on 10-30-2020 01:48 PM
While troubleshooting a 500 error, Failed Request Tracing (FREB) may display AspNetInitClrHostFailureModule error with 0...
1,104

Enabling Bot Telemetry for Application Insights

mertozturk on 10-27-2020 05:36 AM
Do you really now, what you will get by enabling the new Bot Telemetry Logger?
904

How bots work

mertozturk on 10-27-2020 01:23 AM
A brief introduction to Bot Framework SDK 
6,354

HTTP response 503 Service Unavailable from IIS: one common generic cause

Viorel-Alexandru on 09-28-2020 06:07 AM
WAS turns off the Application Pool due to repeated crashing exceptions in the Web application. Look for the exception ca...
891

ANCM not reading “ASPNETCORE_ENVIRONMENT” variable from local environment.

Ramchandra_Kudtarkar on 09-11-2020 01:17 PM
After upgrading the asp.net core application to asp.net core 3.1 version, application is not able to read the “ASPNETCOR...
3,711

Checking the certificate trust chain for an HTTPS endpoint

Viorel-Alexandru on 09-07-2020 04:14 AM
Check the trust when the client doesn't handshake the TLS with the server
3,536

The request is not supported (0x80070032)

Nedim on 08-24-2020 06:53 AM
IIS uses bindings to determine where to redirect requests. These bindings can be secured (https – mostly on port 443) or...
1,963

MachineKeys folder fills up quickly

Nedim on 08-24-2020 06:38 AM
MachineKeys folder stores certificate keys that are used by IIS. This folder my fill up with thousands of files in a sho...
1,829

Custom Error Page vulnerability

Nedim on 08-24-2020 06:37 AM
IIS comes with default error pages. In order to help troubleshooting issues, these error pages may provide detailed info...
3,386

Web.config file maximum size and count

Nedim on 08-24-2020 06:32 AM
IIS refuses to read web.config if it exceeds a threshold. This check is in place to prevent vulnerability attacks
1,986

Bad method token error

Nedim on 08-24-2020 06:28 AM
There is a known issue with 4.5.17 and lower versions that cause "Bad method token" error
771

Checking the FTP Sub status logged can help find the cause of problems.

michno on 08-11-2020 10:21 AM
Did you know that there is a sub status field in FTP logs? Like the IIS web site log, the sub status can be very helpful...
2,670

Event ID 7023: The Windows Process Activation Service terminated

Nedim on 08-07-2020 04:20 PM
If your web applications stop responding requests, WAS is one of the services you should check first. While troubleshoot...
2,194

Web Deploy issue ERROR_CONNECTION_TERMINATED

Nedim on 08-07-2020 04:18 PM
While publishing an application from Visual Studio to Azure App Service, you may come across this error message.
2,044

Timer_MinBytesPerSecond in HTTP.SYS logs

Nedim on 08-07-2020 04:16 PM
In a slowness issue I worked on, this record in HTTPERR file took my attention: Timer_MinBytesPerSecond

Latest Comments

fgatti78
in Setting up Kerberos Authentication for a Website in IIS on 01-22-2021
Is it possible to configure a web app to use Windows Authentication for authenticating to the app, but a domain service account to authenticate to the SQL server?
0 Likes
Andy_Townsend725
in Setting up Kerberos Authentication for a Website in IIS on 01-21-2021
As noted at https://social.technet.microsoft.com/Forums/en-US/e396df7c-3cf1-47b1-8721-d2774a1f8816/setspn-unknown-parameter back in 2011, something (perhaps MS Word) has corrupted the "-" on the "setspn -A". It would make sense to edit this text so that genuine "-" characters appear in the text as "...
0 Likes
Gregory_Ostapenko
in MachineKeys folder fills up quickly on 01-19-2021
Hi, To whoever read above article:Under no circumstances do not remove key containers with below names (from here https://forums.iis.net/t/1224708.aspx?C+ProgramData+Microsoft+Crypto+RSA+MachineKeys+is+filling+my+disk+space) - Microsoft Internet Information Server -> c2319c42033a5ca7f44e731bfd3fa2b5...
0 Likes
BrettM
in Centralized Certificate Store (CCS) and IIS bindings on 01-13-2021
Hey,I am trying to demo the usage of Central Certificate Store for our certificate automation. I am looking to use AD Integrated Azure Files as the backend, and have setup a Private Link to this share. I then discovered that CCS doesn't like it when the server and username are cross domains, so I ha...
0 Likes
nonogo
in Fusion Log Viewer (fuslogvw.exe) on 01-03-2021
Why I can't select Log bind failures to disk?
0 Likes