I'd like to have a lightweight firewall monitoring tool for the RPi with graphs and pies who will give straight/easy to read informations. There are tons of ol

I'd like to have a lightweight firewall monitoring tool for the RPi with graphs and pies who will give straight/easy to read informations. There are tons of old programs based on PHP and Cacti, etc. Most of them are not easy to read, let alone to configure. Most of them look like relics more than anything these days.