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패스워드
안녕하세요? 저는 리눅스에 막 입문한 강진호 라고 합니다. 리눅스 설치 연습을 하면서 애로가 있어서 이렇게 질문을 드립니다. 리눅스 파란 7.1 설치하고 IP마스커레이드 적용할려고 했는데요... 분명히 이전이랑 똑같이 적용해 준것 같은데(이전에는 적용이 잘 됐었는데...-.-) 이번에는 문제가 있네요. 다름이 아니고 ipchains -F, ipchains -P DENY, ipchains -A forward -j MASQ -s 192.168.0.0/24 -d 0/0 로 명령을 내리면 적용은 되는데 재부팅후 자동적용이 않되네요... 부팅시 작동 적용을 위해서 /etc/rc.d/rc.local 에 /etc/rc.local/rc.firewall 추가 해줬구요... rc.firewall 은 윈도우 쓰는 인터넷에서 카피하여 디스켓으로 옮긴다음, 리눅 스 서버로 가서 cp rc.firewall.txt /etc/rc.d/rc.firewall 로 복사한 다음 재부팅하고 chmod 700 /etc/rc.d/rc.firewall 명령을 내려서 rc.firewall 을 실행가능한 화일로 적용해 주었습니다. 모두 잘 설치가 되어 있는지 확인해봤구요.. 분명히 이렇게 하면 재부팅되면서 자동적용이 되어야 할것 같은데 왜 안되는것 일까요. 제가 초보임에도 불구하고 일단 네트워크 부터 공부하면서 리눅스의 특성을 이해해감으로 인해서 기본적인 것이라도 빼먹은것이 혹시 있을수 있음 을 감안해 주셔서 혹 도움이 되어 주실수 있으신 분이 계시다면 꼼꼼한 답변 부탁드리겠습니다. 감사합니다. * 다음은 제가 적용한 rc.firewall 의 내용 입니다... #!/bin/sh # # rc.firewall - Initial SIMPLE IP Masquerade test for 2.1.x and 2.2.x kernels using IPCHAINS # # Load all required IP MASQ modules # # NOTE: Only load the IP MASQ modules you need. All current IP MASQ modules # are shown below but are commented out from loading. # Needed to initially load modules # /sbin/depmod -a # Supports the proper masquerading of FTP file transfers using the PORT method # /sbin/modprobe ip_masq_ftp # Supports the masquerading of RealAudio over UDP. Without this module, # RealAudio WILL function but in TCP mode. This can cause a reduction # in sound quality # #/sbin/modprobe ip_masq_raudio # Supports the masquerading of IRC DCC file transfers # #/sbin/modprobe ip_masq_irc # Supports the masquerading of Quake and QuakeWorld by default. This modules is # for for multiple users behind the Linux MASQ server. If you are going to play # Quake I, II, and III, use the second example. # #Quake I / QuakeWorld (ports 26000 and 27000) #/sbin/modprobe ip_masq_quake # #Quake I/II/III / QuakeWorld (ports 26000, 27000, 27910, 27960) #/sbin/modprobe ip_masq_quake ports=26000,27000,27910,27960 # Supports the masquerading of the CuSeeme video conferencing software # #/sbin/modprobe ip_masq_cuseeme #Supports the masquerading of the VDO-live video conferencing software # #/sbin/modprobe ip_masq_vdolive #CRITICAL: Enable IP forwarding since it is disabled by default since # # Redhat Users: you may try changing the options in /etc/sysconfig/network from: # # FORWARD_IPV4=false # to # FORWARD_IPV4=true # echo "1" > /proc/sys/net/ipv4/ip_forward # Dynamic IP users: # # If you get your IP address dynamically from SLIP, PPP, or DHCP, enable this following # option. This enables dynamic-ip address hacking in IP MASQ, making the life # with Diald and similar programs much easier. # #echo "1" > /proc/sys/net/ipv4/ip_dynaddr # MASQ timeouts # # 2 hrs timeout for TCP session timeouts # 10 sec timeout for traffic after the TCP/IP "FIN" packet is received # 160 sec timeout for UDP traffic (Important for MASQ'ed ICQ users) # /sbin/ipchains -M -S 7200 10 160 # DHCP: For people who receive their external IP address from either DHCP or BOOTP # such as ADSL or Cablemodem users, it is necessary to use the following # before the deny command. The "bootp_client_net_if_name" should be replaced # the name of the link that the DHCP/BOOTP server will put an address on to? # This will be something like "eth0", "eth1", etc. # # This example is currently commented out. # # #/sbin/ipchains -A input -j ACCEPT -i bootp_clients_net_if_name -s 0/0 67 -d 0/0 68 -p udp # Enable simple IP forwarding and Masquerading # # NOTE: The following is an example for an internal LAN address in the 192.168.0.x # network with a 255.255.255.0 or a "24" bit subnet mask. # # Please change this network number and subnet mask to match your internal LAN setup # /sbin/ipchains -P forward DENY /sbin/ipchains -A forward -s 192.168.0.0/24 -j MASQ
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