Dhaval, I have seen suddenly so many established connections like below on my > system. > > There is http & tomcat both are running on the same machine. > > it might be best for you to inform the list with more details on any/all responsibilities/jobs/processes of this system of yours.
http & tomcat = ? http = apache httpd? what all is tomcat doing? is there a web app running on tomcat serving many requests? > 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. > are you saying that you observed this behavior prior to or after installing nagios? > > 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. > FYI, sometime within the last 2 to 3 weeks, I did a 'netstat' in Command Prompt on my development and production servers (Microsoft Windows Server 2008). This was really my first time doing this, and I recognized a lot of 'imap' connections on the production server. So, after some research (searching google/stackoverflow.com), I refactored my javamail code that was responsible for the many (or infinite # of) imap TCP connections showing up in 'netstat' output, and now, I no longer have the infinite # of imap TCP connections any longer. So, you really have to examine your 'system'. Evidently, the TCP connections are all considered as 'working as designed' (according to someone's coding/implementation or some third party tool/software). Howard
