Tridion VM Multiple Host Headers

Question

I'm following a suggestion from Dominic Cronin on setting up multiple host headers to help demonstrating different users on the same CMS, but I'm stuck at the login pop-up.

1. As an administrator, I added the following to: C:\Windows\System32\drivers\etc\hosts and saved the changes.

   127.0.0.1 authors.tridion.local
   127.0.0.1 admin.tridion.local

2. In the Site Bindings for SDL Tridion 2011 (my CMS installation) in IIS 7.5, I have:

   For authors:

   • Type: http
   • IP address: All Unssigned (i.e. "*")
   • Port: 80
   • Host name: authors.tridion.local

   For admins:

   • Type: http
   • IP address: All Unssigned (i.e. "*")
   • Port: 80
   • Host name: admin.tridion.local

   (tried other ports, but 80 works fine for multiple headers)

When attempting to visit http://authors.tridion.local or http://admin.tridion.local in Chrome, I'm prompted to log in (so the host and IIS setup seems to be partially working), but entering a valid user name and password won't get me past the login pop-up.

Cancelling the login pop-up gives me the IIS error:

HTTP Error 401.2 - Unauthorized
You are not authorized to view this page due to invalid authentication headers.

Additional info:

• Application pool for Site SDL Tridion 2011 is SDL Tridion 2011 with physical path set to C:\Program Files(x86)\Tridion\web. This application pool is set to .NET v4.0 as Integrated for pipeline mode.
• When attempting to log in to one of these additional URLs, my already logged in administrator (on http://localhost), will see authorization errors such as /WebUI/Models/TCM54/Services/General.svc/GetItem failed to execute. STATUS (500): System.ServiceModel.ServiceActivationException.

I'm thinking I'm missing something with the ports (since updated to separate ports), Windows folder permissions, or an appropriate restart. How do I set up separate urls for different users on a Tridion CMS instance/VM?

Update 1:

• I disabled LoopBackChecks with regedit and restarted the VM (thanks, Chris). I can at least get past the login pop-ups to see most of the CME in Chrome and IE (after changing IE's security level).
• I tried updating the WebRoot's web.config based on Dominic's post, but changes to multiport/multihostname under appSettings, httpModules, modules, and serviceHostingEnvironment were not needed.

Update 2 (part of the solution):

By default, for .NET 4.0, multiple headers for WCF sites in IIS is disabled.

Adding multipleSiteBindingsEnabled="true" to serviceHostingEnvironment now lets me browse each url as different users.

<system.serviceModel>
<serviceHostingEnvironment
    aspNetCompatibilityEnabled="true"
    multipleSiteBindingsEnabled="true">

Answer 1

I have had issues with than in the past. Something to do with LoopBackChecks. I disabled it by following http://support.microsoft.com/kb/896861

Also check out Installation issue with SDL Tridion 2013 & SDL Web 8 CME not loading all items properly