//versify tcpdump is in the system
which tcpdump

// to get a list of internet interface on the machine
sudo tcpdump -D
1.eth0 [Up, Running, Connected]
2.eth1 [Up, Running, Connected]
3.any (Pseudo-device that captures on all interfaces) [Up, Running]
4.lo [Up, Running, Loopback]
5.bluetooth-monitor (Bluetooth Linux Monitor) [Wireless]
6.nflog (Linux netfilter log (NFLOG) interface) [none]
7.nfqueue (Linux netfilter queue (NFQUEUE) interface) [none]
8.dbus-system (D-Bus system bus) [none]
9.dbus-session (D-Bus session bus) [none]

sudo tcpdump -i eth0 host 23.44.201.77 dump.pcap