On Fri, Jan 9, 2009 at 6:08 PM, T o n g <mlist4suntong@yahoo.com> wrote: > Hi, > > I've tried all the network bandwidth monitoring tools that I know to find > out the unknown network traffic I'm having now, I've tried iftop, netstat, > lsof and pktstat, and still can't find out the result. Please help. Perhaps capturing packets with wireshark / tcpdump could help you to interpret that traffic. Regards