ip addr 查看虚拟机ip:
0.2 IP与域名(或主机名)映射
vim /etc/hosts
192.168.253.100 tsw01
0.3 关闭防火墙
systemctl stop firewalld
systemctl disable firewalld
0.4 关闭SELinux
vim /etc/selinux/config #SELINUX=enforcing 改成 SELINUX=disabled
注意,要重启系统后(reboot),SELinux的修改才能生效
另,查看SELinux的状态:getenforce sestatus /usr/sbin/sestatus -v