This blog describes how you can setup your SharePoint Services environment using a FQDN. For a full explanation about what a FQDN is, you can read my previous post about Hosting Reporting Services on a fully qualified domain name (FQDN).
For this example I will modify the host file to use portal.mikeglaser.com as a FQDN. On Windows-based computers, this file can be found in the systemroot\System32\Drivers\Etc folder. Trough Microsoft Internet Information Services (IIS) you configure the Default Web Site, so it's only accessible through portal.mikeglaser.com. This can be done by changing the default identification and adding the FQDN as a host header value.
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