centos.repo

[root@localhost ~]# vi centos.repo #输入以下内容并保存

[AppStream]

name=AppStream

baseurl=file:///media/AppStream

gpgcheck=0

enabled=1

[BaseOS]

name=BaseOS

baseurl=file:///media/BaseOS

gpgcheck=0

enabled=1

 

 

option routers 192.168.15.254；

 

sudo dnf install hello

yun -y install hello

 yum install nmap