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Date:      Mon, 02 Jul 2001 16:59:32 +0800
From:      Kelvin Ng Chee Hoong <nchee_hoong@pacific.net.sg>
To:        "freebsd-questions@FreeBSD.ORG" <freebsd-questions@FreeBSD.ORG>
Subject:   Port scanning
Message-ID:  <3B4037F4.7A6EB55D@pacific.net.sg>

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Hi ;
   I've enabled  TCP_DROP_SYNFIN and TCP_RESTRICT_RST options to against
nmap and port scanning. To run the test , I ran nmap from another Linux
machine . Although these two options have enabled ,  nmap still able
scan through and list the state of  services are running.
   Question :
(1) How do I configure FBSD to against port scanning ?
(2) Where log file is stored to capture the event of port scanning ?
(3) How do I configure FBSD to send email alert or SMS once encountered
port scanning action take place ?
   Please advise .


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