I don't like the world seeing the admin interface of my Kentico site. Kentico allows you to create a new folder for admin pages but the existing folder is still there and its pages still accessible. I want to whitelist the admin folder by IP.
Add the following section to your web.config. This enables an IP whitelist for the admin folder. More details here.
<location path="Admin">
<system.webServer>
<security>
<ipSecurity allowUnlisted="false" denyAction="NotFound">
<clear />
<add allowed="true" subnetMask="255.255.255.255" ipAddress="987.654.321.012" /> <!-- add your IP here -->
</ipSecurity>
</security>
</system.webServer>
</location>