Darxus on Fri, 10 Sep 1999 21:53:26 -0400 (EDT)


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[Plug] detecting portscans


The program that showed me portscans like:

Sep 10 21:41:45 darxus tcplog: port 6141 request from monet
Sep 10 21:41:45 darxus tcplog: port 1991 request from monet
Sep 10 21:41:45 darxus tcplog: port 1409 request from monet
Sep 10 21:41:45 darxus tcplog: port 6141 request from monet
Sep 10 21:41:45 darxus tcplog: port 1991 request from monet
Sep 10 21:41:45 darxus tcplog: port 1507 request from monet
Sep 10 21:41:45 darxus tcplog: port 1068 request from monet

(was portscanning myself this time)

was tcplog.  It's in a package called "jail"  (apt-get install jail),
which also includes icmplog.

It appears as though it detects portscans even when you've got a fireall
blocking the ports being scanned, and does not cause a portscan to detect
open ports all over the place.  

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            darxus@op.net / http://www.op.net/~darxus
                         Far Beyond Reason


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