Skype for Business Server Internal Web Site – which is bound to port 443 and 80.Skype for Business Server External Web Site – which is bound to port 80.You can view the port bindings by selecting the site and ‘Edit Bindings’

Using differencing ports also allows the Skype4B Front Ends to use a single IP address. Our industry experts have collected the latest application modernization trends impacting the automotive, financial services, healthcare, and manufacturing verticals. Skype for Business differentiates these sites by using different ports:Īpplication Modernization Industry Quick GuidesĪpplication modernization enables you to optimize business processes and transform the way you do business today, and in the future. Not all Skype4B Web Services are designed to be exposed to the internet – examples would be the Skype4B Control Panel and the Response Group Configuration page. Why are there separate Web Sites for Internal and External Web Services? One web site for Internal and one for External. Let’s take a quick look at the IIS settings of a Front End Server in my lab you will see that there are two different IIS sites (Image below).

Dialin – Dial-In Conference settings information.

LyncDiscover – client sign-in and discovery.

Here are some of the Skype4B Web Service functions: Skype4B relies on the Reverse Proxy to publish its Web Services to the public Internet. So why does Skype for Business (Skype4B) need a Reverse Proxy? Ideally, the Reverse Proxy device/appliance is placed between your internal Skype for Business Front End server/s and the public internet – the recommended placement would be in a DMZ network.

This is done in such a seamless manner that the Reverse Proxy is transparent to the client. The Reverse proxy is a device that receives requests from clients on and then forwards the request on to another resource, in this case a Skype for Business Front End server. First let’s start off with what a Reverse proxy is and then cover how it fits in with with Skype for Business Server.

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