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References: <af7lksnbx8.fsf@orange.kick.gr.jp> <18060.939727415@coconut.itojun.org>
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From: Tomoyuki Okazaki <sonic@nn.iij4u.or.jp>
Date: 13 Oct 1999 01:05:35 +0900
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Subject: [FreeBSD-users-jp 46570] Re: NAT and EPSV (was: firewall with FreeBSD)
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$B$*$+$6$-!w$*$&$A$G$9!#(B

itojun@iijlab.net writes:

> 	$B$J$s$+8F$P$l$?$]$$$N$G$G$F$-$^$7$?!#(B

$B$"$j$,$H$&$4$6$$$^$9!#(B
$B!t(Bipv6$B$N$3$H$OF,$+$i$9$C$]$j$HH4$1$F$^$7$?!#(B

> >> > $B!t$G$b(Bftpd$B$,(BNetBSD-current$B$N>l9g$O$3$l$@$1$G$O$G$-$^$;$s$G$7$?!#(B
> >> $B$($C$H!"$I$N$h$&$K$G$-$J$+$C$?$N$G$7$g$&$+!#(B
> >$B$($C$H(B verbose on $B$N>uBV$G$O(B
> >EPRT command successful.
> >$B$H$G$F$=$N$^$^H?1~$,$J$+$C$?$G$9!#!J5-21$@$1$G=q$$$F$^$9$,!K(B
> 
> 	$B$b$H(Bmail$B$,0lIt$_$"$?$i$J$$$N$G?dB,$7$^$9$,!"(B
> 	- $B$J$s$i$+$N(BNAT$BH"$r2p$7$F(B
> 	- NetBSD-current$B$N(Bftp client$B$+$i(B
> 	- $B$J$s$i$+$N(Bftp server$B$K8~$+$C$F%"%/%;%9$7$h$&$H$7$?(B
> 	$B$H$-$N>u67$H;W$C$F$h$$$G$9$+(B?
> 	(NetBSD-current$B$N(Bftpd$B$H=q$$$F$"$j$^$9$,!"$=$&$O;W$($J$$(B)

$B$=$&$G$9!#(B
$B>\$7$/8@$&$H$3$s$J46$8$G$9!#(B

NetBSD-current($B$*$&$A$NCf(B) 
      $B"-(B
FreeBSD-current(nat$BH"(B)
      $B"-(B
NetBSD-current($B$*30(B)

> 	NAT$BH"$,CN$i$J$$%3%^%s%I$rAGDL$7$7$F$$$k5$$,$7$^$9!#(B
> 	$B$D$^$j(BNAT$BH"$,2u$l$F$$$^$9!#(B

$B$&!<$`!#(B
NAT$BH"$N(Blibalias$B$K$O(B PORT$B$,Mh$?$H$-$OJQ49$9$k$h$&$K(B
source$B$K$O$"$j$^$7$?$,$=$l0J30$OAGDL$7$G$7$?!#(B

> 	$B$3$N>u67$+$iF($2$k$K$O!"(BNetBSD-current$B$N(Bftp client (ftp(1))$B$G(B
> 	"epsv4"$B$H$$$&%3%^%s%I$rC!$$$F$d$C$F$/$@$5$$!#(BEPSV$B$r;H$o$J$/(B
> 	$B$J$j$^$9$N$G$J$s$H$+$J$k$H;W$$$^$9!#(B

$B$*$*!#$3$l$OCN$i$J$+$C$?$G$9!#$"$j$,$H$&$4$6$$$^$9!#(B

EPSV/EPRT$B$rM}2r$7$J$$(Bftpd$B$N>l9g$O(Bftp client$B$,(Bepsv4$B$r$7$F(B
PASV/PORT$B$r=P$9$H$$$&$3$H$G$9$M!#(B

> 	$B$3$&$$$&>l9g$O!"(Bftp client$BB&$G(B"debug" "verbose"$B$N%3%^%s%I$r(B
> 	$BC!$$$?8e<B83$7$F!"(Blog$B$rE:IU$7$F$$$?$@$1$k$H$J$K$,5/$-$F$$$k$N$+(B
> 	$B$o$+$j$d$9$$$G$9!#(B

$B>u67$bJ,$+$j$^$7$?$,!"(Blog$B$r0l1~$D$1$F$*$-$^$9!#(B
EPSV$B$ODL$j$^$9$,(BEPRT$B$O(Btime out$B$7$^$9!#(B
$B!t(Blupin$B$,FbIt(B(192.168.1.2)$B$G(B drop.kick.gr.jp$B$,30$G$9!#(B

lupin% ftp
ftp> debug
Debugging on (debug=1).
ftp> debug 9
Debugging on (debug=9).
ftp> open drop.kick.gr.jp
Connected to drop.kick.gr.jp.
220-
220 drop FTP server (Version: 7.2.0) ready.
Name (drop.kick.gr.jp:sonic): okazaki
---> USER okazaki
331 Password required for okazaki.
Password:
---> PASS XXXX
230-
    NetBSD 1.4L (DROP3) #59: Tue Oct 12 18:48:22 JST 1999
    
    Welcome to NetBSD!
    
230 User okazaki logged in.
---> SYST
215 UNIX Type: L8 Version: 7.2.0
Remote system type is UNIX.
Using binary mode to transfer files.
ftp> cd .ssh
---> CWD .ssh
250 CWD command successful.
ftp> dir
---> EPSV
229 Entering Extended Passive Mode (|||65533|)
---> LIST
150 Opening ASCII mode data connection for '/bin/ls'.
total 20
-rw-r--r--  1 okazaki  wheel  2659 Oct  2  1998 authorized_keys
-rw-------  1 okazaki  wheel   525 Sep 28  1998 identity
-rw-r--r--  1 okazaki  wheel   329 Sep 28  1998 identity.pub
-rw-------  1 okazaki  wheel  3305 Jun  2 03:14 known_hosts
-rw-------  1 okazaki  wheel   512 Oct 12 18:47 random_seed
226 Transfer complete.
ftp> passive off
Passive mode off.
ftp> dir
---> EPRT |1|192.168.1.2|65527|
200 EPRT command successful.
---> LIST

421 Service not available, remote server timed out.

-- 
$B2,:jCR9T(B (Tomoyuki Okazaki) sonic@nn.iij4u.or.jp
