From owner-FreeBSD-net-jp@jp.freebsd.org  Fri May 11 11:58:01 2001
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In-Reply-To: Your message of "Mon, 07 May 2001 19:27:49 +0900"
	<200105071027.AA00111@pc0171.jimu.tezukayama-u.ac.jp>
References: <200105071027.AA00111@pc0171.jimu.tezukayama-u.ac.jp>
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Date: Fri, 11 May 2001 11:57:52 +0900
From: Hiroyuki Une <harrier@seiryu.es.hkg.ac.jp>
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Subject: [FreeBSD-net-jp 3096] Re: FIN flooding?
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From: Toru Morimoto <too@tequila.jimu.tezukayama-u.ac.jp>
Date: Mon, 07 May 2001 19:27:49 +0900
Message-ID: <200105071027.AA00111@pc0171.jimu.tezukayama-u.ac.jp>

$B1-:,!w9-Eg9q:]3X1!Bg3X$G$9!#(B

> netstat -a $B$N>pJs$,$J$$$N$GJ,$+$i$J$$$N$G$9$,!"(B

$B:#D+F1$8>uBV$,:F8=$G$-$?$N$G;n$7$F$_$^$7$?!#(B
$BLdBj$N%5!<%P0J30$N%3%M%/%7%g%s>pJs$O:o=|$7$^$7$?!#(B
$B!t(B[FreeBSD-net-jp 3091] $B$N(B tcpdump(8) $B$N=PNO7k2L$H(B
$B!t%]!<%HHV9f$,0c$&$N$O5v$7$F2<$5$$(B(^^;)$B!#(B

------ $B$3$3$+$i(B netstat -a
tcp4       0      0  myhost.3124           wwwserver.http  CLOSE_WAIT
tcp4       0      0  myhost.3120           wwwserver.http  CLOSE_WAIT
tcp4       0      0  myhost.3119           wwwserver.http  CLOSE_WAIT
tcp4       0      0  myhost.3118           wwwserver.http  CLOSE_WAIT
tcp4       0      0  myhost.3116           wwwserver.http  LAST_ACK
tcp4       0      0  myhost.3114           wwwserver.http  CLOSE_WAIT
------ $B$3$3$^$G(B netstat -a

$B$H$$$&$o$1$G!"(Bmyhost $B$,(B FIN $B$rAw$C$?8e$K(B
wwwserver $B$+$i(B ACK $B$,JV$C$F$/$k$N$rBT$C$F$$$k>uBV$G$"$k$3$H$O(B
tcpdump(8) $B$N7k2L$+$i$bL@$i$+$G$9!#(B

$B0J>e$rF'$^$($F:FEY$N<ALd$J$N$G$9$,!"(B
$B$3$l$OAj<j(B(wwwserver)$B$N(B TCP/IP $B$N<BAu$K4X$9$k(B
$BLdBj$J$N$G$7$g$&$+!)(B
$B$I$&9M$($F$b(B FreeBSD $B$N<BAu%_%9$H$O;W$($J$$$N$G$9$,!&!&!&(B
$B!t$3$N$"$?$j$r$O$C$-$j$5$;$J$$$H(B
$B!t@hJ}$K%P%0Js9p$,$G$-$J$$$b$N$G!&!&!&(B

$B$h$m$7$/$*4j$$$7$^$9(B(_o_)$B!#(B

---
$B1-:,909T(B: $B9-Eg9q:]3X1!Bg3X(B $B9)3XIt(B $BEE;R9)3X2J(B ($B5l>N(B $B9-EgEE5!Bg3X(B)
une@seiryu.es.hkg.ac.jp or harrier@seiryu.es.hkg.ac.jp
