使用密钥对免密操作远程服务器
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2023-06-29
22:08:08
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使用密钥对免密操作远程服务器
机器 1： 192.168.171.128
机器 2（远程机器）: 192.168.171.130
1.机器 1 上生成密钥对：
[root@localhost ~]# 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:
SHA256:NchJwjlxkcL5JI57nORpFif2SpTgzG7hYwtcr5D5H0U root@localhost.localdomain
The key's randomart image is:
+---[RSA 2048]----+
| oo++o |
| . O=oo |
| + + BE o |
| B O.o. . |
| . * X BS |
| * B @.. |
| * O.. |
| + .. |
| .. |
+----[SHA256]-----+
[root@localhost ~]#
[root@localhost ~]# ls /root/.ssh/
id_rsa id_rsa.pub
[root@localhost ~]# cat /root/.ssh/id_rsa.pub #查看公钥内容,将该公钥内容粘贴到远程机器 2,文件命名为:authorized_keys
ssh-rsa
AAAAB3NzaC1yc2EAAAADAQABAAABAQCqx16gwciSttzoc/rgtKrE45kLl7vTpmvc5qDvzB6LWEm5jp9b/SdUy0qBVx5yZ5/nBmkqUbD
ZQBsG//Qi4rw8w7kIc14IOxn0U4s0bG/3FaRTHBDzqEnqMFE3kDuZ1dFI26/2M08nDzVtLEM5mbCIikzxBpGKLf/Ms0eaR5EBc3sf5k
RumSC3PS/Y8XTQfb/kqeZ396hVTXnhUPJc87WRu5+KZzRP9b7GgKtnTVtJ0FWpauMMNVF+ocNscPIL2Lz8l9ra17thqXJfR4k8/qqkg
Vy22fT5EGPRzi3B1ap9nyiLcGgkvKrAGHeMXusGey4YNOCFtIaJAuuFa0fUy5Bn root@localhost.localdomain
2.机器 2 上：编写机器 1 的公钥文件
[root@node1 ~]# mkdir /root/.ssh
[root@node1 ~]# vim /root/.ssh/authorized_keys
ssh-rsa
AAAAB3NzaC1yc2EAAAADAQABAAABAQCqx16gwciSttzoc/rgtKrE45kLl7vTpmvc5qDvzB6LWEm5jp9b/SdUy0qBVx5yZ5/nBmkqUbD
ZQBsG//Qi4rw8w7kIc14IOxn0U4s0bG/3FaRTHBDzqEnqMFE3kDuZ1dFI26/2M08nDzVtLEM5mbCIikzxBpGKLf/Ms0eaR5EBc3sf5k
RumSC3PS/Y8XTQfb/kqeZ396hVTXnhUPJc87WRu5+KZzRP9b7GgKtnTVtJ0FWpauMMNVF+ocNscPIL2Lz8l9ra17thqXJfR4k8/qqkg
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