永久关闭
systemctl disable firewalld
systemctl stop firewalld
cd /etc/selinux/
echo n | cp -i config config.bak
sed -i '7s/enforcing/disabled/g' config
cat /etc/sysconfig/selinux
init 6临时关闭
systemctl stop firewalld
setenforce 0查看是否关闭
iptables -L
getenforce
sestatus