Basic Usage
So, based on the kind of traffic I’m looking for, I use a different combination of options to tcpdump, as can be seen below:
Basic communication // see the basics without many options
# tcpdump -nS
Basic communication (very verbose) // see a good amount of traffic, with verbosity and no name help
# tcpdump -nnvvS
A deeper look at the traffic // adds -X for payload but doesn’t grab any more of the packet
# tcpdump -nnvvXS
Heavy packet viewing // the final “s” increases the snaplength, grabbing the whole packet
# tcpdump -nnvvXSs 1514
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