# lsof -i
COMMAND    PID     USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
chromium- 2379   brenta   70u  IPv4  45006      0t0  TCP brenta.local:44023->stackoverflow.com:www (ESTABLISHED)

the local and remote Internet addresses of a network file;
the local host name or IP number is followed by a colon (':'), the port,
``->'', and the two-part remote address.

COMMAND    PID     USER   FD   TYPE   DEVICE SIZE/OFF NODE NAME
firefox   2778   brenta  59u   IPv4 68476917      0t0  TCP NOT_MY_HOST:39812->stackoverflow.com:http (ESTABLISHED)