Installation:

sudo apt install tcpdump
pip install .

Usage

see civpb-watchdog --help

Stopping the program:

Long press(!) of Ctrl+C.

Sketch for usage of pitboss_watchdog without sudo:

It runs with AmbientCapabilities=CAP_NET_RAW

Alternatively

Give Python3 network access

  cp /usr/bin/python3 .
  sudo setcap cap_net_raw=+ep ./python3

  # tcpdump need also acces on network interfaces
  # Laut https://askubuntu.com/questions/530920/tcpdump-permissions-problem 
  sudo groupadd pcap
  sudo usermod -a -G pcap ramkhamhaeng

  sudo chgrp pcap /usr/sbin/tcpdump
  sudo chmod 750 /usr/sbin/tcpdump

  sudo setcap cap_net_raw=ep /usr/sbin/tcpdump