iptables 좀 봐주세요..설정을 잘못했는지 안걸러지네요 ㅡㅜ
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아파치 에러로그에
[Fri Nov 21 18:53:22 2008] [error] [client 219.254.157.243] File does not exist: /ho me/www/reward/MarkAny
[Fri Nov 21 19:56:24 2008] [error] [client 118.222.216.40] File does not exist: /hom e/www/home/favicon.ico
[Fri Nov 21 19:42:34 2008] [error] [client 89.175.221.207] File does not exist: /hom e/www/reward/MSOffice
[Fri Nov 21 18:53:36 2008] [error] [client 121.136.37.214] Directory index forbidden by Options directive: /home/www/reward/
위 네가지가 너무 많이 들어와서 어떻게 좀 막아볼까하고 쉘에서 명령으로
iptables -A INPUT -p tcp -m tcp --dport 80 --tcp-flags ACK ACK -m string --string "/_vti_bin" --algo bm --to 65535 -j REJECT --reject-with tcp-reset
이런식으로 MSOffice, favicon.ico, MarkAny 를 등록했습니다.
(없는 인덱스 부르는건 어떻게 해야 할지 몰라서 못했구요)
그런데 시간이 지나도 하나도 걸러지지 않는지 로고가 계속 쌓이네요 ㅡㅜ
제가 뭘 잘못한걸까요
iptables -L 해보면
----------------------
[root@s2i conf]# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- anywhere anywhere
REJECT tcp -- anywhere anywhere tcp dpt:http flags:ACK/ACK STRING match "/_vti_bin" ALGO name bm TO 65535reject-with tcp-reset
REJECT tcp -- anywhere anywhere tcp dpt:http flags:ACK/ACK STRING match "/MSOffice" ALGO name bm TO 65535reject-with tcp-reset
REJECT tcp -- anywhere anywhere tcp dpt:http flags:ACK/ACK STRING match "/favicon.ico" ALGO name bm TO 65535reject-with tcp-reset
REJECT tcp -- anywhere anywhere tcp dpt:http flags:ACK/ACK STRING match "/MarkAny" ALGO name bm TO 65535reject-with tcp-reset
Chain FORWARD (policy ACCEPT)
target prot opt source destination
RH-Firewall-1-INPUT all -- anywhere anywhere
Chain OUTPUT (policy ACCEPT)
target prot opt source destination
Chain RH-Firewall-1-INPUT (2 references)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere anywhere
ACCEPT icmp -- anywhere anywhere icmp any
ACCEPT esp -- anywhere anywhere
ACCEPT ah -- anywhere anywhere
ACCEPT udp -- anywhere 224.0.0.251 udp dpt:mdns
ACCEPT udp -- anywhere anywhere udp dpt:ipp
ACCEPT tcp -- anywhere anywhere tcp dpt:ipp
ACCEPT all -- anywhere anywhere state RELATED,ESTABLISHED
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:mysql
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ssh
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:smtp
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:http
ACCEPT tcp -- anywhere anywhere state NEW tcp dpt:ftp
REJECT all -- anywhere anywhere reject-with icmp-host-prohibited
==============
이렇게 나오는데요...
조언 좀 부탁드립니다 .....
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부하도 많이 발생 하고요.
아파치 웹 서버를 사용하신다면 mod_security를 활용 하심이 옳습니다.