[Ntop] NTOP Stoping without a Reason

[Rafael Rodrigo - NSINET]

I have a Conectiva Linux 7.0 with the currente stable version of tcpdump and lipcap.I compiled ntop2.0.99 RC2 and use this to count the traffic of my Network. All traffic is only going for Internet. I don't have a samba/windows network or anything as it. My Internet Link is of 512Kbps, then the max network traffic is 512Kbps.   Well, the compile was fine, and NTOP run fine during 3 days. But now it stops without a reason. And I lost all traffic counted by NTOP. I am using the flag -S1 save all network traffic, but it don't work now. I am using the current stable version of gdbm database.   The only thing that I think that can justify it, is a Hacker attack to a machine monitored by NTOP. This attack cause a total traffic of 1.1 Gigabytes on my network, during about 15 hours. But NTOP stops 5 hours after I stop the Hacker.   Somebody can help-me ?? If somebody knows a better tool to count monthly traffic on a network by machines, please tell me. But I think that this is the better tool.   Sorry by the bad english.   Thanks, Rafael Rodrigo M. Rosa - NSI Brazilian Internet Provider