From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rakotomandimby Mihamina Subject: port scan identification Date: Tue, 08 Jun 2004 23:55:44 +0200 Sender: netfilter-admin@lists.netfilter.org Message-ID: <40C635E0.2010208@wanadoo.fr> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: netfilter@lists.netfilter.org Hello I try to set correctly up my firewall ans would need your help on one thing : I have this rule : [...] iptables -A INPUT -p tcp --tcp-flags SYN,ACK,FIN,RST RST \ -j LOG --log-level debug --log-prefix 'p_scan_: ' [...] and i see this when i tail the output file : [...] Jun 8 22:52:32 milina kernel: p_scan_: IN=ppp0 OUT= MAC= SRC=81.220.171.201 DST=81.248.95.56 LEN=40 TOS=0x00 PREC=0x00 TTL=54 ID=45424 PROTO=TCP SPT=4391 DPT=80 WINDOW=0 RES=0x00 RST URGP=0 [...] Well . According to me, a port scan is the action to scan _all_ the ports ... why is the port scan identified as only scaning the 80th port ? I mean, a port scan should not be on one port only ... isn't it ? -- Rakotomandimby Mihamina Andrianifaharana Tel : +33 2 38 76 43 65 http://stko.dyndns.info/site_principal/Members/mihamina