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Halelujah, David Johnson! Many thanks for this confirmation. This is exactly what I needed!
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Halelujah, David Johnson! Many thanks for this confirmation. This is exactly what I needed!

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<b>Points of My Scenario:</b><br />
1. I am domain admin<br />
2. I must deploy SCCM 2012 for Software Update management<br />
3. I have many Windows clients in a DMZ - but they all have HTTP access to the SCCM server (not yet configured)<br />
4. One server will host SCCM's Config Manager, Site Manager, Management Point, Software Update Point and WSUS server<br />
5. Therefore, <b><u>one</u></b> IIS server will be used for all the websites required.<br />
6. Due to firewall restrictions, I must use HTTP port 80 only for all websites on this one server!<br />
7. I plan to configure <b>Host Headers</b> in IIS to accommodate this.<br />
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<b>QUESTION:</b> Will SCCM and WSUS function correctly when both are using the same IIS server and port 80 - <b>IF</b> I use Host Headers?
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Points of My Scenario:
1. I am domain admin
2. I must deploy SCCM 2012 for Software Update management
3. I have many Windows clients in a DMZ - but they all have HTTP access to the SCCM server (not yet configured)
4. One server will host SCCM's Config Manager, Site Manager, Management Point, Software Update Point and WSUS server
5. Therefore, one IIS server will be used for all the websites required.
6. Due to firewall restrictions, I must use HTTP port 80 only for all websites on this one server!
7. I plan to configure Host Headers in IIS to accommodate this.

QUESTION: Will SCCM and WSUS function correctly when both are using the same IIS server and port 80 - IF I use Host Headers?

Can I Use Host Headers for SCCM and WSUS on Same IIS Server?

IIS is Internet Information Services, the web server included with Windows Server operating systems. All current versions are built on a modular architecture; modules can be added or removed individually so that those required for specific functionality are installed. The full installation of IIS includes HTTP, security, content, compression, caching, logging and diagnostics.

Microsoft IIS Web Server

Microsoft server applications are those applications developed specifically, but not necessarily exclusively, on the Windows Server platform. In addition to well-known products like SQL Server, Exchange, Internet Information Services (IIS), Microsoft Dynamics, Forefront, Lync and Sharepoint, they include applications like Skype, BizTalk, Hyper-V, Groove and Commerce Server. Server applications are managed with the Microsoft System Center.

Microsoft Server Apps

Windows Server Update Services (WSUS), previously known as Software Update Services (SUS), is a computer program developed by Microsoft that enables administrators to manage the distribution of updates and hotfixes released for Microsoft products to computers.