CentOS5/iptables
をテンプレートにして作成
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開始行:
&tag(CentOS5/iptables);
*目次 [#w2641da2]
#contents
*参考情報 [#k8d03981]
-[[CentOS5]]
-[[iptablesの設定:http://www.nina.jp/server/redhat/iptabl...
-[[プチ・パケットフィルタリング - いますぐ実践! Linuxシス...
-[[CentOSをサーバーとして活用するための基本的な設定:http:...
-[[連載記事 「習うより慣れろ！ iptablesテンプレート集」:h...
*設定 [#xda67776]
-ssh/http(ポート番号22と80)はどこからでも許可にした
-/etc/sysconfig/iptables を編集する
#pre{{
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251...
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELAT...
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp...
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp...
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-...
COMMIT
}}
-iptablesを反映させる
# /etc/init.d/iptables restart
-iptablesの設定を確認しておく
#pre{{
# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination ...
RH-Firewall-1-INPUT all -- anywhere anywhe...
Chain FORWARD (policy ACCEPT)
target prot opt source destination ...
RH-Firewall-1-INPUT all -- anywhere anywhe...
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 icmp -- anywhere anywhere ...
ACCEPT esp -- anywhere anywhere ...
ACCEPT ah -- anywhere anywhere ...
ACCEPT udp -- anywhere 224.0.0.251 ...
ACCEPT udp -- anywhere anywhere ...
ACCEPT tcp -- anywhere anywhere ...
ACCEPT all -- anywhere anywhere ...
ACCEPT tcp -- anywhere anywhere ...
ACCEPT tcp -- anywhere anywhere ...
REJECT all -- anywhere anywhere ...
}}
終了行:
&tag(CentOS5/iptables);
*目次 [#w2641da2]
#contents
*参考情報 [#k8d03981]
-[[CentOS5]]
-[[iptablesの設定:http://www.nina.jp/server/redhat/iptabl...
-[[プチ・パケットフィルタリング - いますぐ実践! Linuxシス...
-[[CentOSをサーバーとして活用するための基本的な設定:http:...
-[[連載記事 「習うより慣れろ！ iptablesテンプレート集」:h...
*設定 [#xda67776]
-ssh/http(ポート番号22と80)はどこからでも許可にした
-/etc/sysconfig/iptables を編集する
#pre{{
*filter
:INPUT ACCEPT [0:0]
:FORWARD ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:RH-Firewall-1-INPUT - [0:0]
-A INPUT -j RH-Firewall-1-INPUT
-A FORWARD -j RH-Firewall-1-INPUT
-A RH-Firewall-1-INPUT -i lo -j ACCEPT
-A RH-Firewall-1-INPUT -p icmp --icmp-type any -j ACCEPT
-A RH-Firewall-1-INPUT -p 50 -j ACCEPT
-A RH-Firewall-1-INPUT -p 51 -j ACCEPT
-A RH-Firewall-1-INPUT -p udp --dport 5353 -d 224.0.0.251...
-A RH-Firewall-1-INPUT -p udp -m udp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -p tcp -m tcp --dport 631 -j ACCEPT
-A RH-Firewall-1-INPUT -m state --state ESTABLISHED,RELAT...
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp...
-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp...
-A RH-Firewall-1-INPUT -j REJECT --reject-with icmp-host-...
COMMIT
}}
-iptablesを反映させる
# /etc/init.d/iptables restart
-iptablesの設定を確認しておく
#pre{{
# iptables -L
Chain INPUT (policy ACCEPT)
target prot opt source destination ...
RH-Firewall-1-INPUT all -- anywhere anywhe...
Chain FORWARD (policy ACCEPT)
target prot opt source destination ...
RH-Firewall-1-INPUT all -- anywhere anywhe...
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 icmp -- anywhere anywhere ...
ACCEPT esp -- anywhere anywhere ...
ACCEPT ah -- anywhere anywhere ...
ACCEPT udp -- anywhere 224.0.0.251 ...
ACCEPT udp -- anywhere anywhere ...
ACCEPT tcp -- anywhere anywhere ...
ACCEPT all -- anywhere anywhere ...
ACCEPT tcp -- anywhere anywhere ...
ACCEPT tcp -- anywhere anywhere ...
REJECT all -- anywhere anywhere ...
}}
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