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Site not working due to FQDN issue

Msdc 271 Reputation points
2021-05-11T14:55:02.51+00:00

Hello,

I have a issue currently where users click a link within SharePoint that takes them to outside vendor site. The outside vendor has there application setup to only allow connection if the address is name.domain. Our default setup is non fqdn and I am not wanting to make any major changes for this one specific vendor that could lead to other issues for others.

Is there anything I can do to somehow force fqdn address when users click the shortcut link within SharePoint so that it somehow passes to the vendor as http://name.domain?

Thanks N Advance

Microsoft 365 and Office | SharePoint Server | For business
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  1. Msdc 271 Reputation points
    2021-06-01T11:33:55.3+00:00

    I believe the vendor is using HTTP header 100%. Could I possibly just update the alternate access mappings to resolve this? Currently default is set to http://website and Intranet is set to http://website.domain. Should I just remove the Intranet value and just make the default http://website.domain (fqdn)? Thnx

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  2. sadomovalex 3,636 Reputation points
    2021-05-19T14:54:16.977+00:00

    The outside vendor has there application setup to only allow connection if the address is name.domain

    does it use Referrer HTTP header for that? In theory if all your users are working from organization AD and you have firewall/proxy you may add a rule which will check outgoing http traffic and change Referrer header if it contains internal name of your Sharepoint site and change it to fqdn on the fly. As result request to vendor app will come with correct Referrer and it should allow connection.

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  3. CaseyYang-MSFT 10,466 Reputation points
    2021-05-12T09:34:30.033+00:00

    Hi @Msdc

    Per my knowledge, in the SharePoint, we can only through configure alternate access mappings to change the original address to FQDN address.

    For reference:

    https://learn.microsoft.com/en-us/previous-versions/office/sharepoint-2007-products-and-technologies/cc261814(v=office.12)?redirectedfrom=MSDN#section2


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