Once you install the PuTTY on your machine, you can easily run PuTTYgen. For the same, go to Windows - Start Menu - All Programs - PuTTY - PuTTYgen. You will see the PuTTY key generator dialog box on your screen You will find a “Generate” button in that dialog. Clicking on it will lead to generating the keys for you.
PuTTY's author opted for simplicity so the public and private keys which make up the underlying security used by putty/ssh 2 key authentication are stored in a single proprietary.ppk file. Typically these keys are maintained as a 2 separate files by ssh. On Linux the key files are typically kept in the directory,.ssh.
Jun 12, 2013 In Ubuntu 12.04 the ssh service is called ssh not sshd. In the file /.ssh/authorizedkeys each and every key must be on its own single line. Before you disable password logins in /etc/ssh/sshdconfig test if your key authentication works properly. PuTTY Key Generator saves the key file with line endings. Copying and pasting it will not work.
Generating a SSH key and use the result to log in to your Azure Linux VM is not that hard to accomplish. In the following article I want to go over the steps.
Get PuTTYgen to generate your SSH key
First we need to download another “PuTTY” tool called PuTTY Key Generator. Just download the PuTTYgen executable and start it. 2017 weak key generation key controversy wikipedia.
Create a new SSH key
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Next you want to make sure that SSH-2 RSA is marked.
Hit “Generate” and make sure to move the mouse within the blank area of the application.
Save the key
If your key is created you can optional set a passphrase (this would prompt you for a password on a login with your key). Also you want to save the private key (we need it later for PuTTY).
In the key field, select the hole content and copy it to the clipboard.
Add the SSH key to Azure
Login to Azure, select your VM, “All Settings” and “Reset password“. Enter a username (please mind the info box above the “User name” field) and select “SSH public key“. Insert your copied key into the text box and hit “Save“.
Log in to your VM via PuTTY
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When your settings are saved, open PuTTY enter your login ip / url on the start form, then select “Connection -> SSH -> Auth” and hit “Browse …“. Regcure pro.
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Now select your saved private key and hit “Open“.
If everything worked out, PuTTY will ask for a username (optional your passphrase). Enter the username from the Azure Portal and you are logged in.