Admin >> Setup >> General Settings >> Public Access

The panel after mod-installation: Nothing is protected

Settings in the Public Access control panel and what they do

For an example of settings
for a completely protected from Public view site,
please refer to Public Access control panel Example

Click an image to open that page

Select Data to hide from public view and require Log in:	Select Icons to hide from public view:
Select Tabs to hide from public view:	Select Tab Selections to hide from public view: