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tcpdump lets you view network packets being sent and received
happy little stick figure: it’s not the easiest to use but it’s usually installed (heart)
-n
don’t try to resolve IP addresses/ports to DNS/port names. makes it run faster
i wlan0
Which network interface to capture packets on
person: I often use “-i any
” to make sure I’m not missing any packets!
-w file.pcap
Write packets to a file for later analysis with tcpdump/tshark/wireshark/another tool
pcap is short for “packet capture”
-A
print packet contents, not just headers. Nice if you want to quickly see what a few packets contain.
-c 1000000
Only capture a limited count of packets.
person: I use it with -w
so I don’t accidentally fill up my disk!
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