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Good question! Intrusion Detection Systems are used for things like this or at least they could be so maybe one of those (aide, tripwire, ...) already has such capability or one could ask about it there. If you know the files being modified beforehand (or a list of files which are important to remain unmodified and the times and usernames that show that you ...


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I'm assuming the nrpe.cfg is from the node being called up (10.1.1.125) and if that's the case, as Steffen said above, you have configured it to require a certificate from anyone calling it. Presumably this should be included when you run check_nrpe, and looking at the help text for 4.0.3 (which is the one I have) there's a -C flag for this. So presumably, ...


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You are really only concerned with traffic that goes outside of your local network. Most OS-level network statistics are going to be at the interface level, not the destination/source level, and would only reflect that of a single device. I'd suggest putting a firewall between your personal segment and that of the shared router. The firewall will count the ...


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I'm an idiot, found the answer. Apparently when you tell sar to collect system statistics into a file, it outputs everything into it, not just the options you passed it. So, what the command sar -r 1 -o /tmp/memory_usage is really saying is: "capture all options at a sample rate of one per second, and record them in the given file. Also, output the ...


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From sensors-detect manpage: sensors-detect needs to access the hardware for most of the chip detections. By definition, it doesn't know which chips are there before it manages to identify them. This means that it can access chips in a way these chips do not like, causing problems ranging from SMBus lockup to permanent hardware damage (a rare case, ...


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The task_struct is not directly exposed, but a lot is available in /proc/PID, which is documented in proc(5). In particular /proc/PID/stat has a number of fields which looks like this. 663969 (bash) S 255279 663969 663969 34836 721047 4194304 1103 125311 1 2396 1 2 2385 4333 20 0 1 0 152947991 9584640 1123 18446744073709551615 94761163685888 94761164450717 ...


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