How to check whether the Mac OS El Captain network is tracked

Networkprivacy

I want to check how (if) and what of my files and network data is logged when using my MacBook offsite. This is a work computer and I know almost all data is tracked when I am onsite. How can I check if this happens when I am offsite not using the VPN (company provided).

Can someone tell me how this is tracked by IT, is there something like syncing drives to a network drive whenever a particular person gets connected on Office network?

Best Answer

Best bet is to install a program like Little Snitch:

It comes with a time limited (first three hours after booting - the network monitors expires after 30 days) free trial of the full app but you can always use the network monitor to see what connections are happening too / what is using bandwidth.

Related Solutions

10.6 PHD file type exclusion

If you never intend on .avi or .mkv files to be synced you may want to try the following.

Mobile Pane
Skip items that match any of the following
Choose Name Contains and type ".avi" (without quotes).
- Do the same for ".mkv" (without quotes).

If you do intend on syncing both file types and would like only to stop them from syncing when they are found within the Desktop folder you may want to try the following.

Mobile Pane
Skip items that match any of the following
Choose Full Path and type "~/Desktop/*.avi" (without quotes)
- Do the same for "~/Desktop/*.mkv" (without quotes)

How to tell which application is using the network

You can try this dtrace one-liner:

sudo dtrace -n 'syscall::recvfrom:return { @[pid,execname] = sum(arg0); }'

Let it run for a while, then hit Control-C. It will print a summary of the number of bytes read from sockets, distributed among processes. For a more detailed view, replace sum by quantize. Or just to see a count of socket reads, replace sum by count.

Disclaimer: I have only tried this on Lion, but AFAIK no great changes in dtrace-ability have occured between SL and Lion.

Best Answer

Related Solutions

10.6 PHD file type exclusion

How to tell which application is using the network

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