Firewall - Network question!

[Σταμάτης Κεκές]

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>http://sourceforge.net/projects/ipac-ng/
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Telika mexri stigmis to ipac-ng einai ayto pou me kalyptei kata 60-70%
To hotsanic opos kai to mrtg einai paketa pou kanoun polls kathe 5 
lepta. Ego ithela anafora pou na mou leei oti i IP tade ekane connection 
ston tade host, diirkise toso xrono kai metaferthikan X bytes. Yparxei 
kati tetoio ?
PS: Eixa dei kapote to guardian firewall gia Winblows pou to ekane ayto. 
Yparxei kati antistoixo gia Linux ?