A tool resembling top for network traffic
NetHogs is a small "net top" tool. Instead of breaking the traffic down per protocol or per subnet, like most such tools do, it groups bandwidth by process and does not rely on a special kernel module to be loaded. So if there's suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing this, and if it's some kind of spinning process, kill it.
You can contact the maintainers of this package via email at
nethogs dash maintainers at fedoraproject dot org.