Ansible ssh-key key authentication configuration

For the do-free management server password settings

1. generation management server ssh-key key

# ssh-keygen // generated keys

root@hsz:/etc/ansible# ssh-keygen

Generating public/private rsa key pair.

Enter file in which to save the key (/root/.ssh/id_rsa):

Enter passphrase (empty for no passphrase):

Enter same passphrase again:

Your identification has been saved in /root/.ssh/id_rsa.

Your public key has been saved in /root/.ssh/id_rsa.pub.

The key fingerprint is:

c5:5a:29:c4:d6:8d:f7:2c:46:f8:a3:c1:d8:e9:5b:06 root@hsz

The key's randomart image is:

+ - [RS 2048] ---- +

|       ... +     |

| .the + +.. |

| The == .. + |

| . = E = o |

|        S. = o   |

| oo |

|           +     |

|          .      |

|                 |

+-----------------+

 

# Return Return trip

 

2. The secret key is copied to the management server

#ssh-copy-id  -i ~/.ssh/id_rsa.pub -p 22 [email protected]

 

# General such a command line , ie, the management server ssh port default

#ssh-copy-id 192.168.0.50

# Then the next it can be remotely operated (the case will be added to the list of managed server ip)

For example ping:

[root@hsz ~]# ansible 192.168.0.50 -m ping 
192.168.0.50 | SUCCESS => {
"ansible_facts": {
"discovered_interpreter_python": "/usr/bin/python"
}, 
"changed": false, 
"ping": "pong"
}