tcpick
Packet sniffing and network traffic analysis tool.
TLDR
Capture traffic on a specific [i]nterface, port and host:
$ sudo tcpick -i [interface] -C -h [host] -p [port]
Capture traffic on port 80 (HTTP) of a specific host
$ sudo tcpick -i [eth0] -C -h [192.168.1.100] -p [80]
Display help
$ tcpick --help