Instances launched using Oracle Linux, CentOS, or Ubuntu images use an SSH key pair instead of a password to authenticate a remote user (see Security Credentials). A key pair consists of a private key and public key. You keep the private key on your computer and provide the public key every time you launch an instance.
PuTTYgen is an key generator tool for creating SSH keys for PuTTY. It is analogous to the ssh-keygen tool used in some other SSH implementations. The basic function is to create public and private key pairs. PuTTY stores keys in its own format in.ppk files. However, the tool can also convert keys to and from other formats.
When you connect to an instance using SSH, you provide the path to the key pair file in the SSH command. You can have as many key pairs as you want, or you can keep it simple and use one key pair for all or several of your instances.
To create key pairs, you can use a third-party tool such as OpenSSH on UNIX-style systems (including Linux, Solaris, BSD, and OS X) or PuTTY Key Generator on Windows.
Prerequisites
If you're using a UNIX-style system, you probably already have the
ssh-keygen
utility installed. To determine if it's installed, type ssh-keygen
on the command line. If it's not installed, you can download OpenSSH for UNIX from http://www.openssh.com/portable.html and install it. If you're using a Windows operating system you will need PuTTY and the PuTTY Key Generator. Download PuTTY and PuTTYgen from http://www.putty.org and install them.
Creating an SSH Key Pair on the Command Line
![Command Command](/uploads/1/2/5/8/125871829/557321731.jpg)
- Open a shell or terminal for entering the commands.
- At the prompt, enter
ssh-keygen
and provide a name and passphrase when prompted.The keys will be created with the default values: RSA keys of 2048 bits.
Start Putty From Command Line
Alternatively, you can type a complete
ssh-keygen
command, for example:The command arguments are shown in the following table:
Argument | Description |
---|---|
-t rsa | Use the RSA algorithm. |
-N '<passphrase>' | A passphrase to protect the use of the key (like a password). If you don't want to set a passphrase, don't enter anything between the quotes. A passphrase is not required. You can specify one as a security measure to protect the private key from unauthorized use. |
-b 2048 | Generate a 2048-bit key. You don't have to set this if 2048 is acceptable, as 2048 is the default. A minimum of 2048 bits is recommended for SSH-2 RSA. |
-C '<key_name>' | A name to identify the key. |
-f <path/root_name> | The location where the key pair will be saved and the root name for the files. |
Putty Generate Ssh Key Command Line Download
Creating an SSH Key Pair Using PuTTY Key Generator
- Find
puttygen.exe
in the PuTTY folder on your computer, for example,C:Program Files (x86)PuTTY
. Double-clickputtygen.exe
to open it. - Specify a key type of SSH-2 RSA and a key size of 2048 bits:
- In the Key menu, confirm that the default value of SSH-2 RSA key is selected.
- For the Type of key to generate, accept the default key type of RSA.
- Set the Number of bits in a generated key to 2048 if it is not already set.
- Click Generate.
- Move your mouse around the blank area in the PuTTY window to generate random data in the key.When the key is generated, it appears under Public key for pasting into OpenSSH authorized_keys file.
- A Key comment is generated for you, including the date and time stamp. You can keep the default comment or replace it with your own more descriptive comment.
- Leave the Key passphrase field blank.
- Click Save private key, and then click Yes in the prompt about saving the key without a passphrase.The key pair is saved in the PuTTY Private Key (PPK) format, which is a proprietary format that works only with the PuTTY tool set.You can name the key anything you want, but use the
ppk
file extension. For example,mykey.ppk
. - Select all of the generated key that appears under Public key for pasting into OpenSSH authorized_keys file, copy it using Ctrl + C, paste it into a text file, and then save the file in the same location as the private key.(Do not use Save public key because it does not save the key in the OpenSSH format.)Halo Wars 2 Serial Key Generator PC Xbox One PS4Halo Wars 2 Serial Key Generator PC Xbox One PS4.After that open Halo Wars 2 Serial Key Generator and click Generate button to get your Halo Wars 2 Key.Here is the only place where you can download Halo Wars 2 Serial Key Number for free. Download Halo Wars 2 cd key generator for free and play in Cracked Halo Wars 2 PC Xbox One PS4.Halo Wars 2 CD Key Generator FeaturesFirst download CD Key Generator and Open it.Click now “generate Key” and wait 30 Sec.Now Copy the KeyPaste the keyHalo Wars 2 torrent,Halo Wars 2 cd key,Halo Wars 2 activation.Halo Wars 2 code.Halo Wars 2 serial key.Halo Wars 2 free.Halo Wars 2 gratis.Halo Wars 2 telecharger.Halo Wars 2 link download.Halo Wars 2 fast.Halo Wars 2 mediafire.Halo Wars 2 no survey.Halo Wars 2 gratis.Halo Wars 2 free torrent.Halo Wars 2 keygen. Crack.Halo Wars 2 craked.Halo Wars 2 activate.Halo Wars 2 how to activate.Halo Wars 2 serial number.Halo Wars 2 number key.Halo Wars 2 key number.Halo Wars 2 cd original.Halo Wars 2 key original.Halo Wars 2 Serial Key Generator PC.Posted in Post navigation. Every Halo Wars 2 activation code is working for PC Xbox One PS4 version of the game.You don’t need Crack for Halo Wars 2 IF you Download this Halo Wars 2 Keygen! Halo 2 cd key.You can name the key anything you want, but for consistency, use the same name as the private key and a file extension of
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. For example,mykey.pub
. - Write down the names and location of your public and private key files. You will need the public key when launching an instance. You will need the private key to access the instance via SSH.
Now that you have a key pair, you're ready to launch instances as described in Creating an Instance.