克隆出来的虚拟机把网卡名字修改成eth0

#cd /etc/sysconfig/network-scripts/
#mv ifcfg-ens33 ifcfg-eth0
#vim ifcfg-eth0
NAME=eth0
DEVICE=eth0
#vim /etc/default/grub
GRUB_CMDLINE_LINUX="crashkernel=auto spectre_v2=retpoline rd.lvm.lv=centos/root rd.lvm.lv=centos/swap net.ifnames=0 biosdevname=0 rhgb quiet" 添加net.ifnames=0 biosdevname=0
# grub2-mkconfig -o /boot/grub2/grub.cfg
#重启机器
#yum install -y net-tools vim lrzsz wget tree screen lsof tcpdump sysstat bash-completion.noarch