sh SSH密钥和密码短语

Posted 2021-05-07

$ sudo apt-get install sshpass
$ sshpass -p your_password ssh user@hostname

- or -
$ sshpass -p your_password ssh -l user_name 192.168.XXX.XXX

Don't use a password. Generate a passphraseless SSH key and push it to your VM.

If you already have an SSH key, you can skip this step… Just hit Enter for the key and both passphrases:

$ ssh-keygen -t rsa -b 2048
Generating public/private rsa key pair.
Enter file in which to save the key (/home/username/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/username/.ssh/id_rsa.
Your public key has been saved in /home/username/.ssh/id_rsa.pub.
Copy your keys to the target server:

$ ssh-copy-id id@server
id@server's password: 
Now try logging into the machine, with ssh 'id@server', and check in:

.ssh/authorized_keys
to make sure we haven’t added extra keys that you weren’t expecting.

Finally check logging in…

$ ssh id@server

id@server:~$ 
You may also want to look into using ssh-agent if you want to try keeping your
keys protected with a passphrase.