记录_Linux_SSH密钥链接【问题】

关于Linux中生成SSH密钥后，传输公钥仍连接不上的问题

实验目的

通过servera生成的密钥，传输给fundation2
fundation2关闭密码验证
servera仍能链接fundation2

前提

不同虚拟机之间能够ping通

操作

servera上的操作

1. root@servera ~]# ssh-keygen
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa): /root/.ssh/servera
   在/root/.ssh/目录下创建一个密码为servera

2. ping通fundation2

点击查看详情

[root@servera .ssh]# ping 192.168.155.128
PING 192.168.155.128 (192.168.155.128) 56(84) bytes of data.
64 bytes from 192.168.155.128: icmp_seq=1 ttl=64 time=0.579 ms

3. 远程传输给servera

点击查看代码

[root@servera .ssh]# ssh-copy-id -i /root/.ssh/servera.pub root@192.168.155.130
/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/servera.pub"
/usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed
/usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys
root@192.168.155.130's password: 

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh 'root@192.168.155.130'"
and check to make sure that only the key(s) you wanted were added.
`

4. 关闭密码验证

点击查看代码

[root@servera .ssh]# vim /etc/ssh/sshd_config 

PasswordAuthentication no

5. 重启SSH安全服务
   [root@servera .ssh]# systemctl reload sshd.service

---

fundation2上的操作

1. 查看/root/.ssh/authorized_keys文件夹中是否有来自servera的密钥

2. 链接ssh root@192.168.155.128
   出错，

最终结果

总结

其实是servera链接fundationa。。。