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Old 04-19-2005, 07:02 AM   #1
Registered: Apr 2004
Location: ..where no life dwells..
Distribution: RH,FC/SuSE/Debian/HPUX/OSX
Posts: 518

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howto log/monitor port-access?

hi all,

since a few days vnstat shows curious high traffic on my NIC. alway at the sime time (vnstat -h).
for example:
18.04. 166.34 MB | 17,592,186,042,732 MB | 17,592,186,042,898 MB

any easy ideas how to log or monitor port access for a defined time period?

till now I could not determine any ominous programms....!
Old 04-19-2005, 10:58 AM   #2
Registered: Oct 2003
Location: New York
Distribution: Debian Sid
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Sniffers like Ethereal or tcpdump can monitor and capture traffic and even help you decipher it, although I don't think they'll identify the program transmitting.
Old 04-21-2005, 12:22 AM   #3
Registered: Jun 2004
Location: Cala city
Distribution: Suse 10.0; Debian 5.0 (Lenny) Fluxbox
Posts: 240

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Well, how I monitor specific port acces is through a terminal on my desktop with tail -f /var/messages | grep <whatever>. Works great, I usually have three transparent Eterms open showing whats going down. Have fun.


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