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±¤°í¼º ±ÛÀ̳ª ºÒ¹ýÀÚ·á ¾÷·Îµå¸¦ ±ÝÇÕ´Ï´Ù.

Re: iptable ¹®¼­
¾ÆÀ̵ð : jgheo     À̸§ : °ü¸®ÀÚ     ¹øÈ£ : 59.2     Á¶È¸ : 87703
¾÷·Îµå : 2004-07-13 22:26:07

#!/bin/sh

# ¸ðµâÀ» ¿Ã¸°´Ù.
/sbin/modprobe ip_conntrack
/sbin/modprobe ip_conntrack_ftp
/sbin/modprobe iptable_nat
/sbin/modprobe iptable_mangle

# ¿ì¼± ¸ðµç RuleÀ» Á¤¸®ÇÑ´Ù.
/sbin/iptables -F
/sbin/iptables -A INPUT -m state --state RELATED -j ACCEPT

# localhost¿¡¼­ÀÇ trafficÀ» ¹Þ¾ÆµéÀδÙ.
/sbin/iptables -A INPUT -i lo -j ACCEPT

# ƯÁ¤ ip¿¡¼­ÀÇ ¿¬°áÀ» ¸ðµÎ¹Þ¾ÆµéÀδÙ. ¿¹¸¦ µé¾î ÀÚ±â Áý ÄÄÇ»ÅÍ
/sbin/iptables -A INPUT -s 192.168.1.1 -j ACCEPT

# ƯÁ¤ Æ÷Æ®·ÎºÎÅÍ ¿¬°áÀ» ¹Þ¾ÆµéÀδÙ. udpµµ ÇÒ ¼ö ÀÖ´Ù.
/sbin/iptables -A INPUT -p tcp --destination-port 22 -j ACCEPT
/sbin/iptables -A INPUT -p tcp --destination-port 20 -j ACCEPT
/sbin/iptables -A INPUT -p tcp --destination-port 21 -j ACCEPT
/sbin/iptables -A INPUT -p tcp --destination-port 80 -j ACCEPT
# x manager port 6000
/sbin/iptables -A INPUT -p tcp --destination-port 6000 -j ACCEPT

# È®¸³µÈ ¿¬°á¿¡ ´ëÇÑ PacketÀ» ¹Þ¾ÆµéÀδÙ.
/sbin/iptables -A INPUT -i eth0 -p tcp ! --syn -j ACCEPT

# ÀÎÁõ ¿¬°áÀ» °ÅºÎÇÑ´Ù(±×·¸Áö ¾ÊÀ» °æ¿ì ¸ÞÀϼ­¹ö°¡ ¿À·§µ¿¾È ŸÀӾƿô »óÅ°¡ µÉ °ÍÀÌ´Ù.)
/sbin/iptables -A INPUT -i eth0 -p tcp --destination-port 113 -j REJECT

# echo³ª ¸ñÀûÁö¿¡ µµÂø ¸øÇϰųª ½Ã°£ ÃÊ°úµÈ icmp packetµéÀ» ¹Þ¾ÆµéÀδÙ.
/sbin/iptables -A INPUT -i eth0 -p icmp --icmp-type 0 -j ACCEPT
/sbin/iptables -A INPUT -i eth0 -p icmp --icmp-type 3 -j ACCEPT
/sbin/iptables -A INPUT -i eth0 -p icmp --icmp-type 11 -j ACCEPT

# ´ÙÀ½À¸·Î °¢°¢¿¡ ´ëÇÑ Á¤Ã¥À» ¼¼¿î´Ù.
/sbin/iptables -P INPUT ACCEPT
/sbin/iptables -P OUTPUT ACCEPT
/sbin/iptables -P FORWARD ACCEPT

## 1~30000¹ø Æ÷Æ®¸¦ µå·ÓÇÑ´Ù. (À§¿¡¼­ ¿­¾îµÐ 20~22,80Àº ¿­·ÁÁü) --dport´Â destination port
## ´Ù µå·ÓÇÒ ¼öµµ Àִµ¥ ±×·¸°Ô Çϸé netstat, iptables -L ·Î »óź¸±â¸¦ ÇÒ ¶§ ¿À·§µ¿¾È ¸ØÃçÀÖ½¿.
/sbin/iptables -A INPUT -p tcp --dport 1:30000 -j DROP
## ÇÎ µå·Ó
/sbin/iptables -A INPUT -p icmp --icmp-type echo-request -j DROP

À­±Û : 2004-07-13 22:21:18,   59¹øÀÇ °ü·Ã±Û ¹Ù·Îº¸±â Re: iptable ¹®¼­
¹Ø±Û : 2004-06-07 23:25:44,   58¹ø ±Û ¹Ù·Îº¸±â fedora 2.0 ¼³Ä¡
  From:211.194.15.233 / Absolute number:105
Ȩ¾²±â°ü·Ã±ÛÀü´Þ¼öÁ¤»èÁ¦¸ñ·Ï
 
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