Tcpdump
From DWIKI
Docs
- http://www.rationallyparanoid.com/articles/tcpdump.html
- http://bencane.com/2014/10/13/quick-and-practical-reference-for-tcpdump/
- https://hackertarget.com/tcpdump-examples/
Tools
- wireshark
FAQ
human readable output
tcpdump -lnX
look for host and port
tcpdump -i ens192 host 192.168.101.3 and tcp port 993
tcpdump: NFLOG link-layer type filtering not implemented
Try adding interface (-i)
tcpdump: Mask syntax for networks only
To match a subnet use net instead of host
