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와우7.0 쓰고 있구요, adsl을 IP masqerading 으로 pc 몇대 쓰고 있습니다. FTP 포트가 3588인 외부 서버에 접속을 하려는데 잘 안되서 질문합니다. 포트를 다 열어놓은 것으로 생각되는데, 왜 안되는지 알려주시면 감사하겠습니다. /etc/rc.d/rc.firewall 의 내용은 아래와 같습니다. <font color=666666> #!/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=ppp+ ANY=0.0.0.0/0 ipchains -P input ACCEPT ipchains -P output ACCEPT ipchains -P forward DENY 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 DENY # ipchains -A input -l -i $EXTIF -d $ANY 0:1023 -p tcp -j DENY # Deny TCP connection attempts # ipchains -A input -l -i $EXTIF -p tcp -y -j DENY # Deny ICMP echo-requests # ipchains -A input -l -i $EXTIF -s $ANY echo-request -p icmp -j DENY # Do masquerading ipchains -A forward -j MASQ echo 1 > /proc/sys/net/ipv4/ip_forward ipchains -A output -p tcp -d 0.0.0.0/0 telnet -t 0x01 0x10 ipchains -A output -p tcp -d 0.0.0.0/0 ftp -t 0x01 0x10 ipchains -A output -p tcp -s 0.0.0.0/0 ftp-data -t 0x01 0x08 modprobe ip_masq_autofw modprobe ip_masq_cuseeme modprobe ip_masq_ftp modprobe ip_masq_irc modprobe ip_masq_mfw modprobe ip_masq_portfw modprobe ip_masq_pptp modprobe ip_masq_quake modprobe ip_masq_raudio modprobe ip_masq_user ipmasqadm autofw -A -v -u -r udp 51200 51201 -c tcp 7175        # Dialpad ipmasqadm autofw -A -v -u -r udp 51210 51210 -c tcp 7175        # Dialpad ipmasqadm autofw -A -u -r udp 4000 4020 -c tcp 8000            # Wowcall ipmasqadm autofw -A -u -r udp 32000 32000 -c tcp 9001          # Telefree ipmasqadm autofw -A -r udp 8888 8888 -c tcp 7777                # Live24 ipmasqadm autofw -A -r udp 6112 6112 -c tcp 6112                # Star ipmasqadm autofw -A -r udp 116 116 -c tcp 116                  # Star ipmasqadm autofw -A -r udp 118 118 -c tcp 118                  # Star </font>

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