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IIS Support Blog
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438

Perfview Command for Capturing Automated High CPU Dumps

Priyanka_Pillai on 07-01-2020 03:42 AM
Perfview Command for Capturing Automated High CPU Dumps
422

Web page with a PowerApps iframe keeps loading

Nedim on 06-22-2020 06:59 AM
If a web browser starts loading the web page but it never finishes loading it, check if there is an iframe in the page
343

500 Internal Server Error when accessing the root folder

Nedim on 06-22-2020 06:58 AM
A webpage may display "The page cannot be displayed" error if the user accesses the root folder of the application
754

Event ID 15300 (SSL Certificate Settings deleted)

Nedim on 06-22-2020 06:54 AM
This error message is displayed in the Event Viewer when the IIS binding is deleted or the certificate is removed
333

404 Page Not Found error even though the page exists

Nedim on 06-22-2020 06:49 AM
After a new installation of IIS role in a server, the browser may return “404 Page Not Found” error for a new website
1,024

Reading a FREB log, a Failed Request Tracing: IIS request processing pipeline execution

Viorel-Alexandru on 04-30-2020 05:45 AM
Once an HTTP request arrives at IIS, multiple modules participate along the pipeline stages to build a response. How do ...
1,003

ARR authenticating itself to backend with client certificate on re-routing requests

Viorel-Alexandru on 04-28-2020 03:35 AM
There are situations where only a known and authenticated reverse-proxy should access an IIS application.
1,048

IIS Client Certificate Authentication results in 401-Unauthorized for sub-applications

Viorel-Alexandru on 04-28-2020 01:55 AM
IIS client certificate mappings must be defined at the site (or server) level, even if they are only used in sub-applica...
1,074

ARR: change the hostname on re-routing to backend node the requests

Viorel-Alexandru on 04-27-2020 08:39 AM
When re-routing requests to backend nodes, ARR can use a custom hostname different from the web farm name, which is the ...
833

Publishing Azure Bot Services to MS teams Store/ Publish your Azure Bot Service for Teams

Sai_Teja_Nagamothu on 03-25-2020 04:02 PM
Test your bot in Teams Create a Teams app package and upload your app to the Teams client for testing. Learn how Publish...
1,704

Use Local IIS without Administrator rights

Nedim on 03-13-2020 01:49 PM
Many developers don’t have Administrator rights on the machines they use for development. IIS Express is used to allow t...
583

Use specific processors in IIS (Processor Affinity)

Nedim on 03-13-2020 01:48 PM
IIS websites use all the available CPU power by default. You can play around the application pool settings if you want t...
391

“advancedLogging cannot be added” error

Nedim on 03-13-2020 01:45 PM
Web Deploy tool helps migrating your IIS websites from one server to another. While trying to transfer a site from Windo...
550

ASP.NET Session has expired (SSRS environment)

Nedim on 03-13-2020 01:43 PM
If you are hosting SSRS environment on multiple IIS servers, you will need to use a common State Server or SQL Server to...
1,176

Protocol violation (Section=ResponseStatusLine)

Nedim on 03-13-2020 01:41 PM
Companies use network devices such as load balancers, proxies, and firewalls in front of the web servers. These devices ...
1,504

How to collect dotnet core app dumps from Linux and analyze dumps on Linux

Jason Xu on 02-11-2020 06:33 PM
You will need a Linux VM to analyze dumps from Linux, so the instructions below included how to create an Linux VM in Az...
816

The IIS Management Console Connection Pane doesn't show any sites I have created

michno on 02-11-2020 09:28 AM
Recently I had an unusual case where customer called in with a problem that he could see none of the web sites in the le...
3,150

SameSite in code for your ASP.net applications

pcociuba on 02-06-2020 10:19 AM
In order to compensate for the fact that older browsers do not understand the SameSite=None attribute on cookies and con...
3,506

SameSite=Lax in the new world

pcociuba on 02-06-2020 09:59 AM
In the last installment of this series, we discussed how the SameSite cookie specification functioned when it was introd...
7,145

SameSite cookie updates in ASP.net, or how the .Net Framework from December changed my cookie usage.

pcociuba on 02-06-2020 09:45 AM
The Internet is a constantly changing place, and the standards that govern it change as well. This week, on February 4th...
1,081

Bot Channels Registration: where is the Secret/Password for the Application ID?

Viorel-Alexandru on 01-29-2020 03:18 AM
I created a Bot Channel Registration with "Auto create AppID and password". But now how can I get the password; I need i...
1,445

Troubleshooting Performance Problems related to Application Domains reloading

rogheorg on 01-27-2020 10:40 AM
Throughout my time working on the IIS team I've seen a lot of cases where frequent unloading of the Application Domains ...
1,814

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 ...
1,132

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...
3,233

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...
1,910

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...

Latest Comments

IvanTT
in Removing an IIS server’s IP address from HTTP responses on 06-30-2020
Hi, Neither of the KB links work. Thanks
0 Likes
mokumax
in How to set hostname during SSL binding in IIS7 on 06-26-2020
Just curious why you use an example WITHOUT a hostname when the title of this post is "How to set hostname during SSL binding in IIS7"?
0 Likes
mrflchen
in w3wp.exe crash (Exception code: 0xc0000005) on 06-12-2020
HiI have almost error, could you please tell me how you fix ? Thx Faulting application name: w3wp.exe, version: 10.0.14393.0, time stamp: 0x57899135Faulting module name: KERNELBASE.dll, version: 10.0.14393.3659, time stamp: 0x5e9140eaException code: 0xe0434352Fault offset: 0x000dc562Faulting process...
0 Likes
pcociuba
in SameSite cookie updates in ASP.net, or how the .Net Framework from December changed my cookie usage. on 06-02-2020
@mistryman12 and @Michael Kostuch : Unfortunately not: the settings were introduced with the December 2019 patches for .Net Framwork 4.7.2 and 4.8 and are not backwards compatible. You will need to upgrade your Framework version.
0 Likes
DrRunCMD
in Solution for “Static compression is being disabled” error on 06-01-2020
I have just found another solution to this problem if users are still experiencing this.I had this issue with Server 2016 with event log clogging up with '2264' and also '9009'. 1) Create a directory on another drive ( other than C:),2) Go into IIS and under computer, double click 'Compression',3) C...
0 Likes