Little Snitch on a Mac
Commercial network monitor & firewall (macOS app) · Security Tools
Little Snitch (Objective Development) is the long-standing commercial macOS firewall; granular per-app inbound/outbound rules, a live network monitor and traffic map. Install the app cask; licensed separately.
Run Little Snitch with FrontierStack
Install or connect Little Snitch; then check its status, ports and certificate from FrontierStack. The same screen links to firewall checks, Malware Audit and backups where they apply.
Run it from your Mac.
FrontierStack installs, monitors and secures services on this Mac and on linked servers.
Download FrontierStackApple notarized · Safe & secure · macOS 13 Ventura+