They are mostly harmful, but if you are worried about your privacy, it can't hurt to be cautious. Little Snitch comes with a couple of default rules. Little Snitch has a tendency to be a bit verbose, and will pester you with questions as soon as any application attempts a connection, which can rapidly get annoying.įortunately, there is a 'Silent Mode', which will automatically allow/deny any connection, and offer us some peace while we work on the configuration. Step 2: Stop the filter and switch to silent mode We are going to use this feature to provide unrestricted access to the internet when connected to a VPN, and automatically cut off access as soon as we are disconnected (or before we are connected). One of its greatest features, introduced in version 3, is 'Automatic Profile Switching': the ability to automatically apply different rules depending on which network you're connected to. Little Snitch is a firewall that allows you to control connections

Let 'Automatic Profile Switching' do the rest.

Create a 'VPN' profile that allows all connections.Modify rules in default profile to deny all connections.Private Internet Access as an example, but this applies to any VPN connection, on any network.

This article presents a simple technique that allows you to force internet access through a VPN when using unsafe networks. There are a couple reasons why you would want to access the internet through a VPN: your work requires it, you regularly work from open Wifi networks, at hotels, coffee shops or libraries, and you want to prevent eavesdropping.

Using Little Snitch to prevent internet access without VPN

Little snitch firewall