利用ssh-copy-id公钥拷贝工具实现ssh无密码登录

[root@www ~]# ssh-copy-id -i /root/.ssh/id_rsa.pub [email protected]
下面是交互输出信息，
The authenticity of host '192.168.1.144 (192.168.1.144)' can't be established.
RSA key fingerprint is 53:5d:e9:70:9a:9e:80:27:ef:1d:2a:dd:a4:a4:e5:fd.
Are you sure you want to continue connecting (yes/no)? yes #这里填yes，回车
Warning: Permanently added '192.168.1.144' (RSA) to the list of known hosts.
Address 192.168.1.144 maps to bogon, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
[email protected]'s password:
Now try logging into the machine, with "ssh '[email protected]'", and check in:

.ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

测试是否可以无密码ssh登录

[root@www ~]# ssh [email protected]
Address 192.168.1.144 maps to bogon, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Last login: Sat Jan 9 15:53:01 2016 from 192.168.1.106
[root@bogon ~]#

可以看到 我没有输入密码 但是 我登录了

[root@www ~]# ssh [email protected]
Address 192.168.1.144 maps to bogon, but this does not map back to the address - POSSIBLE BREAK-IN ATTEMPT!
Last login: Sat Jan 9 15:53:01 2016 from 192.168.1.106
[root@bogon ~]# ifconfig #不放心？再次确认！！！！
eth0 Link encap:Ethernet HWaddr 00:0C:29:3F:7A:03
inet addr:192.168.1.144 Bcast:192.168.1.255 Mask:255.255.255.0