This functionality was modified in an update. For more information, see New Site Wizard > Site Name, Path and Scripts Page (retired)
Allows you to enter information to define the new site. (This page differs depending on if you are creating a primary or secondary site.)
Name - Enter the name of the primary site. This name is used as the node name in Server Manager. (When creating a secondary site, you should enter the name of the already existing primary site here.)
Name of secondary site - Enter the name of the secondary site. This name is used as the node name in Server Manager. (For secondary site creation only)
Virtual directory - Enter the name of the virtual directory in IIS. By default, "Server" is appended to the node name.
Path - Enter or browse to the location on the server where the IIS virtual directory is to be created.
Use HTTPS - Indicates whether or not HTTPS will be enabled for this site. By default, HTTP is not enabled.
Port - Sets the TCP port to be used by the software. By default, it's set to 80 for HTTP or 443 for HTTPS.
External Host Name – Allows you to set a fully-qualified external domain as the host for your site. This is used for call back URLs. If not specified, the internal host name is used.
Internal Host Name - Indicates your system's host name or host name for the default SPF server URL/RequestURI.
I want the wizard to create local operating system users for site application pools automatically - Choose this option to allow the wizard to run scripts that will create the local operating system users and group assignments for the IIS application pools that support the site.
I will create local operating system users for site application pools myself - Choose this option not to run the scripts to create the local operating system users and group assignments for the IIS application pools that support the site, thereby requiring you to perform these tasks manually.
The new site wizard updates the SPFAppServer.config file to set the external host name while creating or updating the site. For example:
<add key="ExternalHostName" value="localhost" />