iis dynamic ip restriction for specific folder under website

Question

I have edited the "dynamic restriction settings" for my website and I have set it to deny 5 concurrent requests for the website. But because I want to display custom error pages, I have created an Error folder under website and tried to change its dynamic restriction settings. So I can disable "deny concurrent request" in order to be able to display error page in errors folder.

But when I open "View Dynamic Restriction Settings" for that folder those 2 options are disabled. What is wrong with it? how can I change the dynamic ip restrictions for folder level?

PS: I have tried to display custom error pages using web.config

I have tried

<httpErrors>
    <error statusCode="403" subStatusCode="6" path="/ErrorPage_tooMuchClick.htm" responseMode="ExecuteURL" />
</httpErrors>

and

<customErrors defaultRedirect="errorpage.htm" mode="RemoteOnly">
  <error statusCode="404" redirect="filenotfound.htm" />
  <error statusCode="403" redirect="ErrorPage_tooMuchClick.htm"  />
</customErrors>

but none of them works

Answer 1

I tried to force that configuration via configuration editor mysite/myfolder WebServer/Security/dynamicIpSecurity/DenyByConcurrentRequests/enabled = True .

Then you will see It has been checked.

However, when I test concurrent requests, it is not working at all.

So I'm afraid DynamicIPrestriction is not supported in folder level for the time being. You may have to set it in site level.