Sep 25, 2012 Monitor outbound traffic with Little Snitch 3. And can also detect and block malicious activity. One of the ways people discovered its activity was through warnings of outgoing connections. Sep 11, 2017 If you want something that’s solid, reliable and easy to use - Little Snitch 4 This software is trusted by many macOS users to do exactly what you want it to. The software developers are so honest that they even allow Little Snitch to block it’s o.
Apr 09, 2009 I know Little Snitch will monitor outgoing connections, but I am unsure whether you can block those connections, but I think so. Little snitch is a firewall that can block outgoing connections. It is application aware. So you can block a specific App on. Jun 21, 2012 Using little snitch you can block outgoing connections on your mac. Its like a reverse firewall for your mac. It allows you to block apps from connecting to the internet without your permission:). Little Snitch 1.2.2 is a valuable application that picks up where Mac OS X’s built-in firewall leaves off. Whereas the firewall software that Apple provides only screens incoming traffic (attempts to access your computer from the outside), Little Snitch watches for outgoing traffic—connections from software running on your Mac.
You can edit the hosts file using terminal, although I'd not recommend it if you're unsure what you're doing. But doing so you can block outgoing access to specified IP addresses or websites.
Block All Outgoing Connections With Little Snitch Online
If you simply want to stop your mac connecting out, why do you not simply turn off your wifi so you're not connected to the internet?
Block All Outgoing Connections With Little Snitch 2
Alternatively a GUI firewall like Little Snitch would be a better option as it gives you very granular options for blocking incoming/outgoing traffic and is fairly easy to use and set up.