npm

killswitch

VPN kill switch for macOS that blocks internet if VPN disconnects

brewmacoslinux
Try with needOr install directly
Source

About

VPN kill switch for macOS

Commands

killswitch

Examples

Enable the kill switch to block internet if VPN drops$ killswitch enable
Disable the kill switch and restore normal internet access$ killswitch disable
Check the current status of the kill switch$ killswitch status