目标: 我想要从电脑A(Alice)自动登录到某台linux服务器B(Bob), 不需要密码. 因为你需要在CI环境下运行脚本
alice@A:~> ssh Bob@B
# 你需要密码, 目标, 自动登录, 不需要这一步
Bob@B's password:首先需要登录电脑A， 生成一个ssh key, 注意不要输入passphrase
alice@A:~> ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/alice/.ssh/id_rsa):
Created directory '/home/alice/.ssh'.
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/alice/.ssh/id_rsa.
Your public key has been saved in /home/alice/.ssh/id_rsa.pub.
The key fingerprint is:
3e:4f:05:79:3a:9f:96:7c:3b:ad:e9:58:37:bc:37:e4 alice@A
Now use ssh to create a directory ~/.ssh as user bob on B. (The directory may already exist, which is fine):然后需要将上面生成的 public key添加到服务器B中
alice@A:~> cat .ssh/id_rsa.pub | ssh Bob@B 'cat >> .ssh/authorized_keys'
Bob@B's password: #输入你的服务器密码, 登录现在你就可以不用密码从A登录B
alice@A:~> ssh Bob@B