systemctl stop firewalld.service
systemctl disable firewalld.service
static
IPADDR=
GATEWAY=
NETMASK=
DNS1=119.29.29.29
70-persistent-net.rules
ifcfg-ens33
(grub)记不清了
vi /etc/selinux/config
SELINUX=disabled
ssh-keygen -t rsa
ssh-copy-id master
scp /root/.ssh/authorized_keys slave4:/root/.ssh