How can I listen on a UNIX socket to watch traffic between processes?

Solution Verified - Updated -


  • A UNIX socket, such as the systemd-journal socket or the socket for Docker or CRI-O is being sent information from a number of processes, and a way to inspect the traffic across this socket is desired.
  • Typical traffic monitoring tools, such as tcpdump, do not work on UNIX sockets.


  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

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