Command-line Knowledge Base

Use netstat to print active connections

netstat -atnp | grep ESTA
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
tcp        0      0 192.168.1.2:49156       173.255.230.5:80        ESTABLISHED 1691/chrome
tcp        0      0 192.168.1.2:33324       173.194.36.117:443      ESTABLISHED 1691/chrome
NULL