ssh自动登录

SSh Agent admitted failure to sign using the key


现有2台机器

1、服务器192.168.1.112

2、个人机192.168.1.110

要使110无需密码通过ssh登入112

步骤

1、创建密钥

Java代码  收藏代码

    miao@u32-192-168-1-110:~/.ssh$ ssh-keygen -t rsa  
      
    Generating public/private rsa key pair.  
    Enter passphrase (empty for no passphrase): (忽略)  
    Enter same passphrase again: (忽略)  
    Your identification has been saved in /home/miao/.ssh/id_rsa.  
    Your public key has been saved in /home/miao/.ssh/id_rsa.pub.  



2、复制公密到服务器

Java代码  收藏代码

    miao@u32-192-168-1-110:~/.ssh$ scp id_rsa.pub miao@192.168.1.112:/home/miao/.ssh/192.168.1.110  
    miao@192.168.1.112's password:   
    id_rsa.pub                                                                   100%  404     0.4KB/s   00:00      
    miao@u32-192-168-1-110:~/.ssh$   



3、添加公密到192.168.112的信任区域
Java代码  收藏代码

    miao@debian-192-168-1-112:~/.ssh$ cat 192.168.1.110 >> authorized_keys  
    miao@debian-192-168-1-112:~/.ssh$   

修改权限 600

注： 2，3两步可由命令ssh-copy-id一步到位

Java代码  收藏代码

    miao@ubuntu-192-168-1-110:~/.ssh$ ssh-copy-id miao@192.168.1.112  
    Password:  
    Now try logging into the machine, with "ssh 'miao@192.168.1.112'", and check in:  
      
      .ssh/authorized_keys  
      
    to make sure we haven't added extra keys that you weren't expecting.  



4、启动ssh-agent

如果ssh 192.168.112返回 Agent admitted failure to sign using the key
ps -Af|grep agent查看有无ssh-agent有无运行，若没有

Java代码  收藏代码

    miao@u32-192-168-1-110:~/.ssh$ ssh-agent  



5、添加id_rsa到ssh-agent

Java代码  收藏代码

    miao@u32-192-168-1-110:~/.ssh$ ssh-add id_rsa