Prevent Apps Accessing Internet w/o Little Snitch?

MBX

macrumors 68000
Original poster
Sep 14, 2006
1,839
423
Hi there

Is it possible to prevent apps from accessing internet without little snitch?

Any solution that works natively in macOS/ Mojave?
 

BLUEDOG314

macrumors 6502
Dec 12, 2015
352
87
What I can think of is modifying the hosts file, but that assumes you know everywhere the app is trying to access.
 

Howard2k

macrumors 68030
Mar 10, 2016
2,900
2,158
There is a Firewall in macOS, but it's not fantastic. You can use it to block incoming connections to an app, but I don't think you can use it to block outgoing connections.

Can you provide more specifics on exactly what you're trying to do.
 

DeltaMac

macrumors G4
Jul 30, 2003
10,229
2,688
Delaware
You might tell us which specific apps you are concerned about.
Some apps need that internet connection, and don't provide a good result without it.

Even using Little Snitch (or other software that identifies apps and processes that are "calling home") can be set too strictly, and can interfere with your internet connection when there is no need to do that.
 

dsjr2006

macrumors regular
Jun 29, 2007
114
12
Metro Detroit
There is a Firewall in macOS, but it's not fantastic. You can use it to block incoming connections to an app, but I don't think you can use it to block outgoing connections.

Can you provide more specifics on exactly what you're trying to do.
That’s not correct. macOS has a full-featured and quite powerful firewall, PF (https://en.wikipedia.org/wiki/PF_(firewall)),and some of the apps are just a GUI to control it. Murus for example; https://murusfirewall.com/.
 

Isamilis

macrumors 6502a
Apr 3, 2012
730
139
Anyone know, how to block outgoing connection on particular applications using Mojave's built-in firewall?
 
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