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windows putty 链接到 linux 免密码

2024-11-19 16:03:39   203人阅读

目标：system1透过ssh连接到system2电脑

技术分享

  • 生成 private key (id_rsa) & public key (id_rsa.pub)
  • id_rsa是system1要用的，例如windows端
  • id_rsa.pub是你要连过去system2要用的, 此服务器必须安装openssh-server服务(sshd)
  • 把id_rsa.pub append到system2的 ~/.ssh/authorized_keys 文件里面
  • 并要清楚登入服务器的username，例如root
  • 找一台可以运行 ssh-keygen 的环境, windows可用Cygwin

步骤如下：

# ssh-keygen -t rsaEnter file in which to save the key (~/.ssh/id_rsa): Created directory ‘~/.ssh‘.Enter passphrase (empty for no passphrase): Enter same passphrase again: Your identification has been saved in ~/.ssh/id_rsa.Your public key has been saved in ~/.ssh/id_rsa.pub.The key fingerprint is:1c:fe:8d:10:b5:32:09:95:51:48:df:45:ef:74:5d:dc henry@db0222da7529The key‘s randomart image is:+--[ RSA 2048]----+|      .o+=o  .o.o||       .o+ o . .E||        * o .   =||       o =     o.||        S       .||         o o     ||          o .    ||                 ||                 |+-----------------+

ssh-keygen的参数说明：

-t type  Specifies the type of key to create. The possible values are  ``rsa1‘‘ for protocol version 1 and ``dsa‘‘, ``ecdsa‘‘ or ``rsa‘‘  for protocol version 2.
# cat ~/.ssh/id_rsa.pub > ~/.ssh/authorized_keys

注意: 用putty自带的PUTTYGEN.EXE生成会不兼容OpenSSH，从而会导致登录时出现server refused our key错误

做法: 把private key(id_rsa)给拷贝出来，我是用vim或cat来开启id_rsa文件然后用鼠标按右键拷到windows下的剪贴板, 存到一个文本给PUTTYGEN.EXE File/Load private key使用. 接着点击Save private key, 此档案等下要用.

技术分享

1.开启putty.exe, 设定Connection/data/Auto-login username, 这里我是用root来登入

2.SSH/Auth/Private key file for authentication:点击Browser选择到你保存私钥(.pkk)的文件, 就是 Save private key 的那个档案.

技术分享

 

windows putty 链接到 linux 免密码


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