LINUX配置双机SSH信认,并用public key认证登录

http://blog.itpub.net/15693674/viewspace-767572/

[[email protected]]$catid_dsa.pub>>authorized_keys

#将本机vrh1上的dsa保存到授权文件中

[[email protected]]$catid_rsa.pub>>authorized_keys

#将本机vrh1上的rsa保存到授权文件中

[[email protected]]$sshvrh2cat~/.ssh/id_dsa.pub>>authorized_keys

#将vrh2上的dsa保存到授权文件中

LinuxServer1:192.168.1.104

LinuxServer2:192.168.1.105

终端:SSHSecureShellClient

1.用password方式登录LinuxServer1和2

2.在LinuxServer1上命令操作如下:两台服务器都要输入

#ssh-keygen-tdsa

并三次回车

#cd.ssh/

#cpid_dsa.pubauthorized_keys

#chmod600authorized_keys

#scp-P22*[email protected]:/root/.ssh

报错:RSAhostkeyformysharebook.cnhaschangedandyouhaverequestedstrictchecking.

Hostkeyverificationfailed.

解决方法:

这是Linux重装或则openssh-server重装引起的,执行以下命令即可

ssh-keygen-R192.168.87.36192.168.87.36换成你要连的服务器就可以了。

其中在scp的时候会提示Areyousureyouwanttocontinueconnecting(yes/no)?

确定输入yes进行确认,之后会提示[email protected]′spassword:要求输入root密码

我们在LinuxServer1(192.168.1.104)上ssh连接LinuxServer2(192.168.1.105),看下是否正常

#ssh192.168.1.105

然后在LinuxServer2(192.168.1.105)上ssh连接LinuxServer1(192.168.1.104),看下是否正常

如果提示:Areyousureyouwanttocontinueconnecting(yes/no)?输入yes即可

到目前为止已经配置好LinuxServer1和LinuxServer2的SSH互相信任,SSH连接并不需要密码

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