The question is: Is that the right tcpdump command? Once the command gives me the outside hosts contacted by the tablet, I would then set up firewall rules blocking connections to those hosts. Where 192.168.0.10 is the IP address of the tablet. It seems to me the particular command to use would be: tcpdump host 192.168.0.10 So my plan is to give WiFi connection to the tablet in its out-of-the-box condition and use the tcpdump command to capture (trace) all connections to and from the tablet. To do that, I first need to find out what the domain or IP address of those servers are.
Unfortunately, this blocking cannot be implemented in the tablet itself (was possible in Fire OS version 7.3.2.1, but no longer in 7.3.2.2), and so I want to use my OpenWrt router's firewall rules to block all connections to Amazon's update servers. I have an Android tablet, specifically an Amazon Fire HD 10, and want to block it from contacting its over-the-air update servers.
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