We help IT Professionals succeed at work.
Get Started

IIS Windows Authentication doesn't authenticate properly with alias

1,201 Views
Last Modified: 2012-05-11
I have a web app (ESI WebEOC) residing on an IIS server called oeppoim.  It is invoked by typing http://oeppoim/webeocapp.  An alias was created in Active Directory that's called webeoc.  To invoke the app through the alias we type http://webeoc.us.house.gov/webeocapp.  Both worked fine.  Then we installed a single sign-on add-on that required we disable Anonymous Authentication.  Only Windows Authentication is enabled in IIS.  Http://oeppoim/webeocapp still works great.  However, now when we type http://webeoc.us.house.gov/webeocapp, the Windows OS prompts us for credentials.  We have to specify the domain with the userID (US\user1), because otherwise it defaults to the local server, oeppoim.  Once we enter credentials, it goes to the app, as it should.  I can no longer dup the problem on my machine - after invoking oeppoim, entering credentials when prompted (after typing webeoc.us.house.gov), it seems something is cached, and both work fine.  However, all our other users have the same problem.  Does the alias have to somehow be configured in IIS now that only Win authentication is enabled?  The alias resolves just fine - I can ping it and it returns the server ip address.
Comment
Watch Question
This problem has been solved!
Unlock 1 Answer and 2 Comments.
See Answer
Why Experts Exchange?

Experts Exchange always has the answer, or at the least points me in the correct direction! It is like having another employee that is extremely experienced.

Jim Murphy
Programmer at Smart IT Solutions

When asked, what has been your best career decision?

Deciding to stick with EE.

Mohamed Asif
Technical Department Head

Being involved with EE helped me to grow personally and professionally.

Carl Webster
CTP, Sr Infrastructure Consultant
Ask ANY Question

Connect with Certified Experts to gain insight and support on specific technology challenges including:

  • Troubleshooting
  • Research
  • Professional Opinions
Did You Know?

We've partnered with two important charities to provide clean water and computer science education to those who need it most. READ MORE