java免密访问linux,Linux免密登录

1、生成秘钥

root@ubuntu:/# ssh-keygen -t rsa

Created directory '/root/.ssh'.

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:

SHA256:4ryyjfIbH/pAR6e1Q9yisdTtawHk1d3Kntoe4hXQeF0 root@slave2

The key's randomart image is:

+---[RSA 2048]----+

|        . .. . .E|

|       = +  .o..o|

|      + X o o.o..|

|     o O =   oo  |

|    . * S o  ... |

|   . + . . o  o. |

|    o +   o .oo  |

|  . .B o . ..o.. |

|   o*==     ...  |

+----[SHA256]-----+

一路回车即可

2、复制秘钥到指定机器

root@ubuntu:/# ssh-copy-id 10.12.204.232

/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"

The authenticity of host '10.12.204.232' can't be established.

ECDSA key fingerprint is SHA256:lUzIk/WnlpldJp4AZP6mn18osHhXMjkJvj2x4JInnQc.

Are you sure you want to continue connecting (yes/no)? yes

/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@slave2.com's password:

Number of key(s) added: 1

Now try logging into the machine, with:   "ssh '10.12.204.232'"

and check to make sure that only the key(s) you wanted were added.

完成.......

本文来自互联网用户投稿，文章观点仅代表作者本人，不代表本站立场，不承担相关法律责任。如若转载，请注明出处。 如若内容造成侵权/违法违规/事实不符，请点击【内容举报】进行投诉反馈！