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Our sharepoint farm will have a site collection that will host purely team and departmental content (sharepoint.company.com) and another site collection hosting project related content (project.company.com). Internally it's all taken care of, but I could not figure out how to get them out to the Internet especially in regards to the relationship between ports, IIS, and access mapping.

I tested using host file and reverse proxy sharepoint.company.com point to https://spwfe:443

The current site config is as follow:

  • The external traffic will come in thru a reverse proxy. Both sharepoint.company.com and project.company.com are set to direct to the same sharepoint server internally.
  • https://sharepoint.company.com is set to forward to https://spwfe:443

This is where i am a little confused. If one site collection already taken up port 443 on the sharepoint server, how would i go about setting up the second project site collection using SSL? The only way I could think of is to put it on a different port such as https://project.company.com:444 forwarding to https://spwfe:444, but i don't want user to have to type in the port number. I looked around on the web, and it seems like it's not recommended for reverse proxy to forward to different port (such as https://project.company.com to https://spwfe:444).

Can someone help shed some light on this? Thanks in advanced!

  • Are both site collection in same web app or different? Are these host name site collection or path based? – Waqas Sarwar MVP Apr 26 '17 at 3:12
  • Hi Waqas, thanks for the reply, i was able to talk to the infra. guys and was provided with information on basic web server 101. I think i was too fixated on port stuff. – David L. May 1 '17 at 16:41
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It all starts with host headers. Same as port 80 traffic, host headers can also be leveraged on port 443. You'll need individual certs for each URL. I would start by reading this: https://www.digicert.com/ssl-support/ssl-host-headers-iis-8.htm

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