Mac

How to Enforce DNS Settings on a Macbook

Connect your MacBook to your Content Policy by enforcing DNS settings.

Tech Lockdown Team

Updated November 1, 2024

If you’ve connected your Mac device to your Content Policy through DNS, you may have wondered whether you could prevent this connection from being disabled. Fortunately, it is possible to enforce DNS settings on Mac so they can’t easily be changed.

There are generally two approaches to restricting DNS changes:

Using App blockers for Mac to prevent easy access to Mac settings that allow changing DNS.
A more difficult, but reliable method, is to set up a managed Macbook and enforce a DNS configuration that can't be changed using the Macbook.

Block Access to System Settings

Freedom Blocker lets you choose applications installed on your Mac to be restricted when a "freedom" session is enabled. You can block the Mac's settings app, effectively restricting access to changing DNS settings.

If you already have Freedom installed on your MacBook, you can see a list of configuration options when you want to start a session:

In order to block System Settings, choose Manage Desktop Apps:

Either search for or find System Settings; make sure it's toggled on (meaning it's blocked):

Lastly, you'll need to start a session to enforce the block: