Multiple Domain Extranet Site

Posted on 2007-10-18
Last Modified: 2013-11-30
Have an extremely simple extranet page I wish to place on the internet from a non production server.

I have created a website in Sharepoint using a host header and I have created DNS records. The website is in the form of where is actually hosted elsewhere.

The page resolves correctly internally but externally I always end up at the default website. I have created a new zone in DNS and created an A record to point to the server address for - also the host header in IIS is

Can anyone give me a pointer here. TIA
Question by:petervane
    LVL 4

    Expert Comment

    Do a ping from an external box to confirm that the public DNS (for extranet...) does contain the correct record.
    LVL 4

    Expert Comment

    Actually didn't read it closely enough.... if you created a new zone, that means your external records are not correct. Get your external DNS host to add the 'A' record for your public IP.

    Author Comment

    Thanks for that.

    The address itself resolves correctly. In other words pinging resolves to the server address. So I am getting back to the server which I note I ddnt explain is an SBS server. However the website which shows up is the default website ie not the one I created.

    I understand this behaviour is exactly what happens if IIS cannot resolve the host header to an appropriate website it just uses the default website. It is as though the host header information is completely ignored.

    Now remember the address is not the domain of this SBS. Let us say it is sbsdomain. Thus I thought I would have to have another DNS zone for containing A records for ---- However it seems to make no difference other than now I can internally resolve to the local server.

    Once again help is much appreciated.
    LVL 4

    Accepted Solution

    the host header needs to be the full external dns name.
    Is this SBS premium? If you have installed ISA, I would say it is a configuration fault in your server publishing rule.
    Also go to
    find the latest log file and see if that gives you any tips as far as the source request.

    Author Comment


    I resolved the the host header entry I had the internal NIC address rather than the NIC on the WAN side. All OK now.

    I will assign you the points because all you were saying was correct information

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