Understanding the Basic Context of Trusted Hosts I got the trusted host settings error. 


  The trusted_host_patterns setting is not configured in settings.php. This can lead to security vulnerabilities. It is highly recommended that you configure this. See Protecting against HTTP HOST Header attacks for more information. 


I read the Trusted Host Settings documentation but I'm not understanding some of the basic context.


Are the "trusted hosts" me and other administrators who want to be able to administer the site remotely? 
If so, would I add my PC's domain to the trusted host list?
Trusted hosts refer to the domain that your Drupal site is hosting, not your remote PC's domain that is administering the site. For example, if your site running on Drupal was www.thedrupaldude.com, the trusted host regular expression would be ^www\.thedrupaldude\.com.