I have a site on port 8080, and extended the site to port 80. Then I added an alternate access mapping to the new url on port 80. I have also created a new host file entry and added the host entry name to the host header configuration in IIS for the extended web app.

If I browse to the site on port 8080, I can access the site with no problems. I can also access the site on port 80 with no problems.

When I try to access the site using the newly created host entry, I get a error that the page cannot be displayed.

The setup:

Server 2003 Standard edition (x64) Sql Server 2005 Standard

  • original url - http://jason-1541466b8:8080/sites/denver/default.aspx
  • extended url - http://jason-1541466b8/sites/denver/default.aspx
  • host entry - mynewsharepoint
  • updated url - http://mynewsharepoint/sites/denver/default.aspx

Alternate Access Mappings

  • default - http://jason-1541466b8:8080
  • intranet - http://jason-1541466b8
  • custom - http://mynewsharepoint

I think I am missing a minor detail somewhere, but cannot seem to find it.

Thanks, Jason

  • I just noticed the environment setup - are you getting prompted for authentication when trying to access the site?
    – Dave Wise
    Nov 11, 2011 at 21:57

1 Answer 1


Open IIS and add http://mynewsharepoint to the list of host-header bindings being listened to by your SharePoint site

  • turns out there were some server settings that were causing the issue
    – Jason
    Nov 17, 2011 at 23:13
  • 1
    which server settings besides the ones mentioned by the answerer?
    – Matt
    Feb 7, 2013 at 18:55

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