I created a similar app for macOS called Security Growler. I have some bugfixes to work on for Sierra, and Linux support is waiting to be merged, but basically

I created a similar app for macOS called Security Growler. I have some bugfixes to work on for Sierra, and Linux support is waiting to be merged, but basically it's a monitoring tool (not a full firewall) that also supports watching logfiles for events. https://github.com/pirate/security-growler https://github.com/pirate/security-growler