Re: Tools for monitoring port scans / connection attmempts?

From: edelweiss (edelweissat_private)
Date: Tue Aug 12 2003 - 18:27:22 PDT

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    Look for portsentry and logcheck.  Used to be available from www.psionic.com
    before Psionic got bought out by Cisco.  I think there are mirrors of 
    the source
    code, though, if you do a quick search via google.
    
    Tony
    
    steveat_private wrote:
    
    >  I see a lot of people upon this list able to keep records
    > of increases in port scans over time.
    >
    >  For example it's common for a post to come through from a
    > member asking about new scans on port foo - and a reply coming
    > back saying "yes seen xxx of those since the 1st of xxx".
    >
    >  Can I ask what software are you using to record these logs?
    >
    >  I know that some firewall systems, like ipchains, or iptables
    > will allow logs to be generated to syslog.  However these are
    > not terribly interesting to read - and they are hard to keep
    > track of.
    >
    >  I'm using a homebrewed system where I have a perl script
    > capturing packets dumping source ip+port and destination ip+port
    > to a database.  This way I can produce pretty graphs showing
    > scans of particular ports over time.
    >
    >  (I'd  be happy to release it if theres any interest).
    >
    >Steve
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