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systemctl stop firewalld.service && systemctl disable firewalld.service && iptables -F &&setenforce 0 sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config setenforce 0 hostnamectl set-hostname controller bash sys

准备环境： systemctl stop firewalld.service && systemctl disable firewalld.service && iptables -F &&setenforce 0 sed -i 's/SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config yum install -y epel-release yum -y install cobbler co