1：打开虚拟机查看一下IP

ifconfig

[panpengfei@localhost tmp]$ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.211.55.3  netmask 255.255.255.0  broadcast 10.211.55.255
        inet6 fe80::21c:42ff:fe91:4e80  prefixlen 64  scopeid 0x20<link>
        inet6 fdb2:2c26:f4e4:0:21c:42ff:fe91:4e80  prefixlen 64  scopeid 0x0<global>
        ether 00:1c:42:91:4e:80  txqueuelen 1000  (Ethernet)
        RX packets 109897  bytes 148141979 (141.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 54911  bytes 3750826 (3.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 2484  bytes 210736 (205.7 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 2484  bytes 210736 (205.7 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255
        ether 52:54:00:e0:3b:e2  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

找出IP地址

10.211.55.3

2：连接

在Termianls里输入

ssh 10.211.55.3
或
ssh root@10.211.55.3

输出

The authenticity of host '10.211.55.3 (10.211.55.3)' can't be established.
ECDSA key fingerprint is SHA256:fJ6k6sw4fnCo3JEpsTMW95PvAf1Bqi2JslamUpxk3Ns.
Are you sure you want to continue connecting (yes/no/[fingerprint])? 

输入yes

yes

询问密码

Warning: Permanently added '10.211.55.3' (ECDSA) to the list of known hosts.
panpengfei@10.211.55.3's password: 

3:登录成功

4：登出

第一种：快捷键->ctrl+d
第二种：命令行->logout