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한국통신 MY-IP(고정아이피)라는 서비스를 받고 있구여, 하나의 회선으로 컴 네대를 인터넷 공유할려구여... 한국통신(MY-IP) --- 리눅스 --- 허브 --- 컴1(192.168.1.2) + 컴2(192.168.1.3) + 컴3(192.168.1.4) 이렇게여... 외부로 나가는 인터넷, telnet은 되는데여 근데 문제는 외부로 나가는 ftp가 안되고 있어여... 메세지는 다음과 같아여.. =================================================================== Connected to 211.***.***.***. 220 BCC3OOPS Server (ProFTPD For Korean) [localhost.localdomain] User (211.***.***.***:(none)): violet00 331 Password required for violet00. Password: 230 User violet00 logged in. ftp> dir 500 Illegal PORT command. 425 Can't build data connection: Connection refused ftp> ==================================================================== ipchains 의 스크립트는 다음과 같슴다. ㅠㅠ, 제발 도와주세염..... 아~ 오널더 이것때문에 퇴근도 못하고 있슴다. ==================================================================== #!/bin/sh # #firewall-masq This script sets up firewall rules for a machine #acting as a masquerading gateway # #Copyright (C) 2000 Roaring Penguin Software Inc. This software may #be distributed under the terms of the GNU General Public License, version #2 or any later version. #Interface to Internet EXTIF=eth+ ANY=0.0.0.0/0 ipchains -P input ACCEPT ipchains -P output ACCEPT ipchains -P forward ACCEPT ipchains -F forward ipchains -F input ipchains -F output #Deny TCP and UDP packets to privileged ports ipchains -P input ACCEPT ipchains -P output ACCEPT ipchains -P forward ACCEPT ipchains -F forward ipchains -F input ipchains -F output #Deny TCP and UDP packets to privileged ports ipchains -A input -l -i $EXTIF -d $ANY 0:1023 -p udp -j ACCEPT ipchains -A input -l -i $EXTIF -d $ANY 0:1023 -p tcp -j ACCEPT ipchains -A input -l -i $EXTIF -d $ANY 0:1023 -p icmp -j ACCEPT #Do masquerading ipchains -A forward -s 192.168.1.2/32 -j MASQ ipchains -A forward -s 192.168.1.3/32 -j MASQ ipchains -A forward -s 192.168.1.4/32 -j MASQ echo 1 > /proc/sys/net/ipv4/ip_forward ==================================================================== 어떤 문제일까요....ㅠㅠ; 제~ 발~ 도와수세염..--나도 한사람의 리눅서이고 싶다.
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