I have seen suddenly so many established connections like below on my system.
There is http & tomcat both are running on the same machine. Previously it was not there. only last 3 days i am observing it. moreover since then i have installed nagios on the same server to measure the activity of the server. tcp 0 0 ::ffff:192.168.4.5:8009 ::ffff:192.168.4.5:36290 ESTABLISHED - tcp 0 0 ::ffff:192.168.4.5:8009 ::ffff:192.168.4.5:41666 ESTABLISHED - tcp 0 0 ::ffff:192.168.4.5:8009 ::ffff:192.168.4.5:52930 ESTABLISHED - Can some one explain me.