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今天服务器调试，忘了端口设置这档子事，结果白白浪费了不少时间，还是记下来吧：
#vi /etc/sysconfig/iptables ######################################################## # Firewall configuration written by system-config-firewall # Manual customization of this file is not recommended. *filter :INPUT ACCEPT [0:0] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT -A INPUT -p icmp -j ACCEPT -A INPUT -i lo -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 22 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 80 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 3306 -j ACCEPT #-A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 4848 -j ACCEPT -A INPUT -m state --state NEW -m tcp -p tcp --dport 8181 -j ACCEPT -A INPUT -j REJECT --reject-with icmp-host-prohibited -A FORWARD -j REJECT --reject-with icmp-host-prohibited COMMIT ########################################################
修改完成保存退出，使之生效
#/etc/init.d/iptables restart
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原文地址：http://my.oschina.net/u/221951/blog/373426
