On Windows, you can create SSH keys in many ways. This document explains how to use two SSH applications, PuTTY and Git Bash.

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Nov 20, 2008  3 Steps to Perform SSH Login Without Password Using ssh-keygen & ssh-copy-id. By Ramesh Natarajan on. Ssh-copy-id uses /.ssh/identity.pub as the default public key file (i.e when no value is passed to option -i). Instead, I wish it uses iddsa.pub, or idrsa.pub, or identity.pub as default keys. I.e If any one of them exist, it should copy. Supported SSH key formats. Azure currently supports SSH protocol 2 (SSH-2) RSA public-private key pairs with a minimum length of 2048 bits. Other key formats such as ED25519 and ECDSA are not supported. Create an SSH key pair. Use the ssh-keygen command to generate SSH public and private key files. By default, these files are created in the. Jun 26, 2019  How SSH Keys Work. SSH keys are generated in pairs and stored in plain-text files. The key pair (or keypair) consists of two parts. A private key, usually named idrsa.The private key is stored on your local computer and should be kept secure, with permissions set so that no other users on your computer can read the file. Re: SSH with authentication key instead of password Posted by Anonymous (115.112.xx.xx) on Wed 7 Jun 2017 at 10:19 Yes If we disable use pam to 'no', then we will not be able to login to machine again, Do not try disabling pam, It does not help or resolve the issue, it asks for password and also it says permission denied when you enter correct. Use ssh-keys for authentication with MobaXterm. This post is older than a year. Consider some information might not be accurate anymore. First step is to generate the ssh key, therefore open a local terminal and generate a key (rsa) with this command. The second step is to export the public key to the servers, with respective logins.

Joyent recommends RSA keys because the node-manta CLI programs work with RSA keys both locally and with the ssh agent. DSA keys will work only if the private key is on the same system as the CLI, and not password-protected.

PuTTY

PuTTY is an SSH client for Windows. You can use PuTTY to generate SSH keys. PuTTY is a free open-source terminal emulator that functions much like the Terminal application in macOS in a Windows environment. This section shows you how to manually generate and upload an SSH key when working with PuTTY in the Windows environment.

About PuTTY

PuTTY is an SSH client for Windows that you will use to generate your SSH keys. You can download PuTTY from www.chiark.greenend.org.uk.

When you install the PuTTY client, you also install the PuTTYgen utility. PuTTYgen is what you will use to generate your SSH key for a Windows VM.

Generating an SSH key

To generate an SSH key with PuTTYgen, follow these steps:

1. Open the PuTTYgen program.
2. For Type of key to generate, select SSH-2 RSA.
3. Click the Generate button.
4. Move your mouse in the area below the progress bar. When the progress bar is full, PuTTYgen generates your key pair.
5. Type a passphrase in the Key passphrase field. Type the same passphrase in the Confirm passphrase field. You can use a key without a passphrase, but this is not recommended.
6. Click the Save private key button to save the private key. You must save the private key. You will need it to connect to your machine.
7. Right-click in the text field labeled Public key for pasting into OpenSSH authorized_keys file and choose Select All.
8. Right-click again in the same text field and choose Copy.

Importing your SSH key

Now you must import the copied SSH key to the portal.

Rsa public key generator with n and e. We have seen enterprises with several million keys granting access to their production servers. It only takes one leaked, stolen, or misconfigured key to gain access.In any larger organization, use of SSH key management solutions is almost necessary.

1. After you copy the SSH key to the clipboard, return to your account page.
2. Choose to Import Public Key and paste your SSH key into the Public Key field.
3. In the Key Name field, provide a name for the key. Note: although providing a key name is optional, it is a best practice for ease of managing multiple SSH keys.
4. Add the key. It will now appear in your table of keys under SSH.

PuTTY and OpenSSH use different formats of public SSH keys. If the text you pasted in the SSH Key starts with —— BEGIN SSH2 PUBLIC KEY, it is in the wrong format. Be sure to follow the instructions carefully. Your key should start with ssh-rsa AAAA….

Once you upload your SSH key to the portal, you can connect to your virtual machine from Windows through a PuTTY session.

Git Bash

The Git installation package comes with SSH. Using Git Bash, which is the Git command line tool, you can generate SSH key pairs. Git Bash has an SSH client that enables you to connect to and interact with Triton containers on Windows.

To install Git:

1. (Download and initiate the Git installer](https://git-scm.com/download/win).
2. When prompted, accept the default components by clicking Next.
3. Choose the default text editor. If you have Notepad++ installed, select Notepad++ and click Next.
4. Select to Use Git from the Windows Command Prompt and click Next.
5. Select to Use OpenSSL library and click Next.
6. Select to Checkout Windows-style, commit Unix-style line endings and click Next.
7. Select to Use MinTTY (The default terminal of mYSYS2) and click Next.
8. Accept the default extra option configuration by clicking Install.

When the installation completes, you may need to restart Windows.

Launching GitBash

To open Git Bash, we recommend launching the application from the Windows command prompt:

1. In Windows, press Start+R to launch the Run dialog.
2. Type C:Program FilesGitbinbash.exe and press Enter.

Generating SSH keys

Generate Public Key For Sftp

First, create the SSH directory and then generate the SSH key pair.

One assumption is that the Windows profile you are using is set up with administrative privileges. Given this, you will be creating the SSH directory at the root of your profile, for example:

1. At the Git Bash command line, change into your root directory and type.

2. Change into the .ssh directory C:Usersjoetest.ssh

3. To create the keys, type:

4. When prompted for a password, type apassword to complete the process. When finished, the output looks similar to:

Uploading an SSH key

To upload the public SSH key to your Triton account:

1. Open Triton Service portal, select Account to open the Account Summary page.
2. From the SSH section, select Import Public Key.
3. Enter a Key Name. Although naming a key is optional, labels are a best practice for managing multiple SSH keys.
4. Add your public SSH key.

When Triton finishes the adding or uploading process, the public SSH key appears in the list of SSH keys.

What are my next steps?

• Adding SSH keys to agent.
• Set up the Triton CLI and CloudAPI on Windows.
• Set up the Triton CLI and CloudAPI.
• Create an instance in the Triton Service Portal.
• Set up the triton-docker command line tool.
• Visit PuTTYgen to learn more about the PuTTYgen and to seethe complete installation and usage guide.

The ssh-agent program is an authentication agent that handles passwords for SSH private keys. Use ssh-add to add the keys to the list maintained by ssh-agent. After you add a private key password to ssh-agent, you do not need to enter it each time you connect to a remote host with your public key.

Generating authentication key pairs

Use the ssh-keygen command to generate authentication key pairs as described below. Provide a passphrase, for example “password”, when creating the key pairs.

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Copy the Public key to remote host

1. Copy the public key to ~/.ssh/authorized_keys on the remote system.

2. Now try logging into the machine, with “ssh ‘root@192.168.12.10′”, and check in the .ssh/authorized_keys file to make sure we haven’t added extra keys that you weren’t expecting.

Add private key password to ssh-agent

1. To add the private key password to ssh-agent, enter the following command:

2. The next step is to use the ssh-add command to add the key.

3. The “ssh-add -l” command lists fingerprints of all identities currently represented by the agent.

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4. You can try loggin in to the remote system without password now.

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In this example, the passphrase is remembered for only the current login session and is forgotten when you log out.