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Keys Authentication
2010/07/18 |
| 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] | Download 'puttygen.exe' from Putty's site.
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| [2] | Run 'puttygen.exe' and click 'Generate' button. |
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| [3] | Move mouse untill progress bar will be full. |
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| [4] | Set passphrase in 'Key passphrase' and 'Confirm passphrase'. Next, Click 'Save public key' and 'Save private key' and Save keys with a file name you want. |
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| [5] | Open 'public_key' you saved. |
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| Remove first line and last line and replace second line to 'ssh-rsa' and then remove all indention like follows. 'ssh-rsa xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx==' |
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| [6] | Login with a user and put 'public_key'. |
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lucid@ubuntu:~$ mkdir .ssh lucid@ubuntu:~$ chmod 700 .ssh lucid@ubuntu:~$ cd .ssh lucid@ubuntu:~/.ssh$ vi authorized_keys # Copy and Paste 'public_key' ssh-rsa xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx== lucid@ubuntu:~/.ssh$ chmod 600 authorized_keys lucid@ubuntu:~/.ssh$ su - Password: root@ubuntu:~# vi /etc/ssh/sshd_config # line 50: uncomment and change PasswordAuthentication no root@ubuntu:~# /etc/init.d/ssh restart * Restarting OpenBSD Secure Shell server sshd [ OK ] |
| [7] | Run Putty and select 'private_key' like follows. |
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| [8] | All OK, connect to the server with keys authentication. |
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| [9] | Passphrase you set is required to input fpr login. After inputiing correct one, it's possible to login like below. |
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