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06.07.2008 at 01:09PM PDT, ID: 23466457
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9.0

Troubleshooting "Cannot create a file when that file already exists" errors in IIS when using host headers

Asked by soneil66 in Microsoft IIS Web Server, MOSS-Sharepoint, SBS Small Business Server

Tags: , , , ,

I am trying to host multiple websites on a single server using IIS 6.0 via host headers. All of the websites are based on components of SBS 2003 and Windows 2003 SP2 including the Default Web Site, WSS 2.0 (aka "companyweb") and additional WSS 2.0 admin sites (Sharepoint Central Admin, Microsoft SharePoint Admin), and WSUS 3.0 SP1. All of these are default installations and only the Default Web Site (for OWA, OMA, Exchange, etc.) is ever really in use. I have no plans to use the additional components beyond how they currently interact on an SBS installation.

I am preparing to deploy WSS 3.0 SP1 for both local and remote access and, therefore, need this multiple website on a single server via host headers functionality to work. (I am aware of additional issues regarding configuration of SharePoint sites through Central Admin prior to IIS - but I'm not there yet.)

The Default Web Site is set to *All Unassigned*, as suggested, the rest are set to the same IP (192.168.128.1 is the private interface which is routed to a public interface, single IP address). The host headers in use for the existing additional sites are all registered as subdomains through my domain host; all point to the same static IP; all sites hosted on this server use the same port (80) and the same SSL (443), per just about every knowledge base article one finds on the net. (See attached screenshot.)

But when I go to start the sites, I get the blasted "IIS was unable to start the site. Another site may already be using the port you configured for this site. Please select a unused port for this site" error. The "Cannot create a file when that file already exists" error then appears in the Status column for each site.

I'm confused because I thought the configuration of the host headers either required or was able to function using the same ports with unique host headers. I've restarted IIS several times; I've rebooted after configuration several times; I've double-check the bindings in the Metabase Explorer and they all appear as configured. I haven't added any records to my local DNS because they've already been added/registered with my domain host.

A wildcard certificate is installed on all of the sites except the Default Web Site and "companyweb" site which maintain their original "publishing.xxx.xxx" certificates issued upon installation of SBS 2003. ISA Server 2004 SP3 is configured and running on the server - no changes have been made to this configuration.

In regards to the existing SharePoint installation - the SharePoint Central Administration site may be a holdover from a previous WSS 3.0 SP1 installation that unfortunately was broken during some early configuration stages. WSS 3.0 SP1 has been uninstalled for the moment; I thought SharePoint Central Admin site existed as part of the default SBS install and didn't want to hastily remove it. Anyway, I don't know if that variable throws something into the mix or not.

Any suggestions? I've mucked around with it enough on my own - I'm to the point where I feel a little dangerous and need assistance. :)

Much thanks.
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Screenshot of IIS configuration.
Screenshot of IIS configuration.
 
[+][-]06.07.2008 at 08:47PM PDT, ID: 21737455

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[+][-]06.08.2008 at 03:59AM PDT, ID: 21738073

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[+][-]06.08.2008 at 05:27AM PDT, ID: 21738209

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About this solution

Zones: Microsoft IIS Web Server, MOSS-Sharepoint, SBS Small Business Server
Tags: Microsoft, SBS 2003, R2, SBS SP1, 2003 SP2, Exchange 2003 SP2, ISA 2004 SP3, IIS 6.0 hosting multiple websites, IIS 6.0
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Solution Provided By: Dovinshka
Participating Experts: 1
Solution Grade: B
 
 
[+][-]06.29.2008 at 11:17AM PDT, ID: 21894967

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