Keys Authentication
2013/05/06 |
Configure SSH server to login with Keys Authentication. It is needed for it to make private key for client and public key for server.
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[1] |
[2] | Start 'puttygen.exe' and click 'Generate' button. |
[3] | Move mouse untill progress bar will be full. |
[4] | Set passphrase in 'Key pass-phrase' and 'Confirm pass-phrase'. Next, Click 'Save public key' and 'Save private key' and Save keys with a file name you want. |
[5] | Open 'public_key' you saved. |
Remove first line and last line and replace second line to 'ssh-rsa' and then remove all indention like follows. "ssh-rsa xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx==" |
[6] | Login with a user and put 'public_key'. |
wheezy@dlp:~$ mkdir .ssh wheezy@dlp:~$ chmod 700 .ssh wheezy@dlp:~$ cd .ssh
wheezy@dlp:~/.ssh$
vi authorized_keys # Copy and Paste 'public_key' ssh-rsa xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx==
chmod 600 authorized_keys wheezy@dlp:~/.ssh$ su - Password:
root@dlp:~#
vi /etc/ssh/sshd_config # line 51: uncomment and change to 'no' PasswordAuthentication no
/etc/init.d/ssh restart [ ok ] Restarting OpenBSD Secure Shell server: sshd. |
[7] | Start Putty and select 'private_key' like follows. |
[8] | If All OK, connect to the server with keys authentication. |
[9] | Pass-phrase you set is required to input fpr login. After inputiing correct one, it's possible to login like below. |