ntopng on a Mac
Live traffic analysis; who is talking to whom, and how much · Monitoring
ntopng is the long-standing network traffic monitor: live flows by host, protocol and application (via nDPI), historical traffic, alerts and flow-collector support for NetFlow/sFlow exported by your router. Install with Homebrew (brew install ntopng); it needs Redis running first (brew install redis); then open the web UI on :3000. Point your OPNsense/pfSense NetFlow exporter at it to see where your bandwidth actually goes, and watch the port here so an ntopng that dies stops being a silent blind spot.
Run ntopng with FrontierStack
Install or connect ntopng; 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 FrontierStack