https://www.cnx-software.com/2018/02/12/monitor-network-traffic-per-process-with-nethogs/
Monitor Network Traffic per Process with Nethogs - CNX Software
Feb 12, 2018 - Yesterday I wrote about using 3G on Raspberry Pi board, and one of the commenter mentioned higher traffic than expected when connecting to 3G to just
network trafficmonitorperprocessnethogs