ubuntu系统下

apt update -y
apt-get update -y && apt-get install curl -y

apt-get update
apt-get upgrade
apt-get dist-upgrade

放开端口删除多余组件

sudo iptables -P INPUT ACCEPT
sudo iptables -P FORWARD ACCEPT
sudo iptables -P OUTPUT ACCEPT
sudo iptables -F

apt-get purge netfilter-persistent

snap remove oracle-cloud-agent

rm -rf /etc/iptables && reboot

centos系统下

yum update -y  
apt-get update -y && apt-get install curl -y                                                                

删除多余附件

systemctl stop oracle-cloud-agent
systemctl disable oracle-cloud-agent
systemctl stop oracle-cloud-agent-updater
systemctl disable oracle-cloud-agent-updater

停止firewall

systemctl stop firewalld.service

禁止firewall开机启动

systemctl stop firewalld.service
systemctl disable firewalld.service

开放所有端口

iptables -P INPUT ACCEPT

iptables -P FORWARD ACCEPT

iptables -P OUTPUT ACCEPT

iptables -F