甲骨文没法直接重装系统，因此这里记录一下甲骨文相关问题。
开启 root 登录#
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| vim /etc/ssh/sshd_config
PermitRootLogin yes
PasswordAuthentication yes
systemctl restart sshd.service
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卸载相关程序#
pcbind#
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| systemctl stop rpcbind
systemctl stop rpcbind.socket
systemctl disable rpcbind
systemctl disable rpcbind.socket
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oracle-cloud-agent#
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| systemctl stop oracle-cloud-agent
systemctl disable oracle-cloud-agent
systemctl stop oracle-cloud-agent-updater
systemctl disable oracle-cloud-agent-updater
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防火墙相关#
停止 firewall 并禁止开机启动#
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| systemctl stop firewalld.service
systemctl disable firewalld.service
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ubuntu#
开放所有端口
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| iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
iptables -F
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清除 iptables 规则
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| apt-get purge netfilter-persistent
reboot
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📎 参考#
