1.14 救援模式
1.15 克隆虚拟机
1.16 Linux机器相互登录
单用户模式
重启linux-----init 6,reboot ,shutdown -r now
重启系统，3秒内按向下的方向键，
按方向键移动光标定位在第一行，按字母e编辑它
按向下的方向键移动到linux16开头的行
按方向键移动到ro这里，将ro改为rw
init=/sysroot/bin/sh
然后同时按ctrl和x ,进入emergency模式
修改root密码，首先切换到原始系统，再修改密码
再重启系统
救援模式
光盘启动 ---光驱开机是否开机启动
选择1，回车，在回车
克隆虚拟机
1.16 Linux机器相互登录
[[email protected] ~]# ssh-******
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
af:3a:01:0e:37:f8:08:27:ee:57:37:48:06:96:f4:73 [email protected]
The key's randomart image is:
+--[ RSA 2048]----+
| ... |
| +. |
| ...o E |
|o + +oo |
|.+ *oo. S |
| .. oo.o . |
|. . ... . |
| . . . . |
| . .o. |
+-----------------+
[[email protected] ~]# ls /root/.ssh/
authorized_keys id_rsa id_rsa.pub
[[email protected] ~]# cat /root/.ssh/id_rsa.pub
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD4qId3iYQemk8ZgUCKnUAE/OE964h/Rd9uAGxbqtuVEwiDXfHLO3Ajdssp2xu2gSRSIvATWnkFzJA7yF52f+dSwTfqpTWu6jWpZLajVdcot54k7sp0cNhczYrJ8JXifG5gLmPXBtFJNhP6hsr6jxfIyp69QnZ1mxuPZj4gNs116GTE0vKq/jB8gvbO1DxJEQzmvSP5J5sT8aI0tjNAVaQe11P7wCLv4eg5057R5ys/yvgMWxpBt/3s/6y7xgEnifN4W1xNiV2FY2mlBIr2B0KzPjHZcLZS94BMo1U6l8SlpftUq/DMxoqKsd9KlkypJOhAUPCaLSqxiwE1x2FVrPlp
[email protected]
[[email protected] ~]# vi /root/.ssh/authorized_keys
Connection to 192.168.79.128 closed.
[[email protected] ~]# ssh 192.168.79.128
Last login: Fri Oct 20 09:23:50 2017 from 192.168.79.129
[[email protected] ~]#
通过这个办法，可以实现两台主机相互登陆