How to find the process which does ping 8.8.8.8 on a synology?
Andrew Mclaughlin
Just installed a new firewall in my (home) network and recognized that my Synology DSM does ping 8.8.8.8 every second. So there seems to be a running ping somewhere... I can't recall letting a ping run anywhere...
Synology has a limited shell, some handy software (i.e. lsof) does not exist and additional software cannot be easily installed. Tcpdump does not show the icmp packets and netstat does not help either. I must assume that the machine pinging might be a docker container. I cannot attach to some of the containers. The ones I was able to do attach to do not show any sign of doing pings (although I do not know if docker attach would actually showing this at all).
How would I find out which process/vm is responsible for those pings? I am interested in the strategy to find such issues.
Thanks
Dan
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