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删除甲骨文免费VPS默认防火墙规则

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最后更新:
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#停止firewall
systemctl stop firewalld.service
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#禁止firewall开机启动
systemctl disable firewalld.service
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#关闭iptables
service iptables stop
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#去掉iptables开机启动
chkconfig iptables off
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#放行8888端口
iptables -I INPUT -p tcp --dport 8888 -j ACCEPT
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#开放所有端口
sudo iptables -P INPUT ACCEPT
sudo iptables -P FORWARD ACCEPT
sudo iptables -P OUTPUT ACCEPT
sudo iptables -F
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#Oracle自带的Ubuntu镜像默认设置了Iptable规则，关闭它
apt-get purge netfilter-persistent
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#强制删除
rm -rf /etc/iptables && reboot