Publish Multiple Application Pool Using IIS ARR Reverse Proxy

Arief Hardiansyah 51 Reputation points
2022-04-12T08:43:52.523+00:00

We've 1 Server application internal with 3 Applications pool inside the IIS Application Pool Settings with details:

-Default Web Site

contoso_A > application that worked & published.
contoso_B
contoso_C

internal url: http://peps.contoso_A.co.id/login.aspx

Currently we already publish those applications pool using ARR reverse proxy & configured URL Rewrite with external URL http://peps.pcino.fabricam.com
but when we open the external url it shows like the capture below:

192224-microsoftteams-image-9.png

Is there any configuration that we missed ?
how to make the external url will direct to application contoso_A ?

Internet Information Services
Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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  1. Arief Hardiansyah 51 Reputation points
    2022-04-18T07:20:07.303+00:00

    Hi @Bruce Zhang-MSFT thanks for your response. Sorry for just replying because it's a national holiday at my place the last few days, the following capture details as you requested:

    Detail bind Information:
    193728-bind-01.png

    193729-bind-02.png

    193769-bind-03.png

    193735-bind-04.png

    Detail URL Rewrite:

    193801-peps-01.png

    193730-peps-02.png

    193802-peps-03.png

    Here my explanation for current configuration

    For access the application we are using Internal URL:
    pcjkt-webint-eproc.contoso.com/PEPS_INTERNAL/Login.aspx

    and for the goal we want to access the application with an external URL:
    peps.pcino.fabricam.com

    when we access the application using an external URL peps.pcino.fabricam.com only the iis page appears (as in the picture above)

    but when we access using external URL peps.pcino.fabricam.com/PEPS_INTERNAL/Login.aspx we can open the application normally.
    kindly need your help. is there any additional configuration that we have to do?

    0 comments
  2. Bruce Zhang-MSFT 3,736 Reputation points
    2022-04-19T02:33:33.313+00:00

    Hi @Arief Hardiansyah ,

    This is a default behavior of IIS by design. Please check your rule and url.

    When you use external URL http://peps.pcino.fabricam.com, it matches the rule and host is right. So IIS will route it to server by change the domain to http://pcjkt-webint-eproc.contoso.com. The URI of external URL is empty, so {R:0} is also empty. Then http://pcjkt-webint-eproc.contoso.com hit on default web site. IIS has a module called Default Document, it will return a specific file when URL doesn't request a specific file. iisstart.htm is the default file IIS return.
    194014-1.png

    When you use external URL http://peps.pcino.fabricam.com/PEPS_INTERNAL/Login.aspx, it matches the rule and {R:0} is PEPS_INTERNAL/Login.aspx. So the URL hits on default web site is http://pcjkt-webint-eproc.contoso.com/PEPS_INTERNAL/Login.aspx which points to login.aspx in PEPS_INTERNAL application.

    The solution I can think of is adding a rewrite rule in default web site to redirect default page.

    1. Disable default document first.
      194025-2.png
    2. Create a rule at default web site level.
    3. Pattern is ^$.
      194083-3.png
    4. Rewrite URL is http://pcjkt-webint-eproc.contoso.com/PEPS_INTERNAL/Login.aspx.

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    Best regards,
    Bruce Zhang

  3. Arief Hardiansyah 51 Reputation points
    2022-04-20T03:35:04.567+00:00

    Hi @Bruce Zhang-MSFT really appreciate your advice.
    where we can set this settings into ? in ARR Server or in Application Server ?
    we will disable the default document, but the order in our IIS is different from yours

    194437-disable-document.png

    which one should we disable?
    is it default.aspx or default.htm or both?

    FYI
    we use the ARR server to publish other apps too