TCP Track Connections

http://pkgs.repoforge.org/tcptrack/tcptrack-1.4.0-1.el6.rf.x86_64.rpm

rpm -ivh tcptrack-1.4.0-1.el6.rf.x86_64.rpm

 tcptrack -i eth0

tcptrack -i eth0 src or dst 76.11.22.12
 tcptrack -i eth1 port 80

This is interesting tool which help us to track the connection between the peers