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[操作系统]linux建立ssh信任关系


建立SSH信任
将A主机做为客户端(发起SSH请求 ip:192.168.200.170)
将B主机作为服务器端(接收ssh请求   ip:192.168.200.149)
以上以主动发起SSH登录请求的主机和接收请求的主机进行分类
<1>A主机生成公,私钥证书            
[root@buddytj-10 .ssh]# ssh-keygen -t rsa     #rsa算法的证书
Generating public/private rsa key pair. (以下一路回车)
Enter file in which to save the key (/root/.ssh/id_rsa):    
/root/.ssh/id_rsa already exists.
Overwrite (y/n)? y                      (因为我的证书已存在,覆盖即可)
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /root/.ssh/id_rsa. (私钥)
Your public key has been saved in /root/.ssh/id_rsa.pub. (公钥)
The key fingerprint is:
c1:26:cc:88:2b:05:dd:c3:6b:1e:78:5d:da:9c:da:8a 
证书就生成了   id_rsa (私钥)|& id_rsa.pub (公钥) 
<2>将A主机生成的公钥传递给B主机 
[root@xyh .ssh]#scp id_rsa.pub  192.168.200.149:/root/.ssh/
在B主机上将A的公钥更名为
[root@xyh .ssh]#mv id_rsa.pub authorized_keys 
<3>至此从A主机远程SSH B主机的工作即告完成
呵呵,超简单的!

引用自:http://xieyanhuang123.blog.51cto.com/713874/346217