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HTTP Error 404 while accessing Outlook Web Access from Internet

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  • HTTP Error 404 while accessing Outlook Web Access from Internet

    Hi everyone;
    We are implementing a Microsoft based Infrastructure and colloboration
    system, includes Active Directory, ISA 2004, Exchange 2003, MOM, Share Point
    etc.
    Currently setup is running for testing, initially it was running fine but
    after 4 days Outlook Web Access become un accessable from Internet. While
    accessing Outlook Web Access from Internet its generating HTTP error 404, but
    its accessable from internal network.
    Complete Error Messages is as follows;

    HTTP Error 404 - File or directory not found.
    Internet Information Services (IIS)

    Can you please help to fix Outlook Web Access issue.

    Note:
    We are using;
    Windows server 2003 R2 Enterprise Edition
    Exchange server 2003 Enterprise with service Pack 2

    Regards

  • #2
    Re: HTTP Error 404 while accessing Outlook Web Access from Internet

    If you can access it from the internal network, the only option is that you did some change in the FW (or ISA) ports.

    Check logs on the FW (or ISA) from the date it stoped working.
    CNE 5, CCA, MCSE NT4.0-2003, MCSE 2003 messaging, Exchange Server MVP.
    Tzahi Kolber - IT Supervisor
    Polycom Israel.

    Comment


    • #3
      Re: HTTP Error 404 while accessing Outlook Web Access from Internet

      No... I dont think its ISA problem, even I dont have changed anything. One more thing that I have observed is OWA page I am locally accessing is not logging out properly... its demaging durring logging off.

      Comment


      • #4
        Re: HTTP Error 404 while accessing Outlook Web Access from Internet

        Check the IIS vdir configuration:
        http://support.microsoft.com/default...b;en-us;883380
        CNE 5, CCA, MCSE NT4.0-2003, MCSE 2003 messaging, Exchange Server MVP.
        Tzahi Kolber - IT Supervisor
        Polycom Israel.

        Comment


        • #5
          Re: HTTP Error 404 while accessing Outlook Web Access from Internet

          Originally posted by syed.wasay View Post
          No... I dont think its ISA problem, even I dont have changed anything. One more thing that I have observed is OWA page I am locally accessing is not logging out properly... its demaging durring logging off.
          Is ISA the only firewall you have?
          What do you mean but not logging out properly?
          "...if I turn out to be particularly clear, you've probably misunderstood what I've said” - Alan Greenspan

          Comment


          • #6
            Re: HTTP Error 404 while accessing Outlook Web Access from Internet

            I have reset the default virtual directories, the operation completed successfully. After that the OWA page which was demaging at the logging off during internal access in logging off properly and log off page is appearing fine. But the problem contineus from external access. Same error i.e.

            HTTP Error 404 - File or directory not found.
            Internet Information Services (IIS)


            I have performed OWA publishing process again but the problem contineus. One more thing, above ISA we have a PIX firewall, NAT is configured between Public IP on PIX and Private IP on ISA external interface, all inboud and outbound ports are open.

            Now what do you think, whats wrong...... waitng

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